Texas Instruments SimpleLink CC3220MOD Series User manual

CC3220MODx and CC3220MODAx SimpleLink™ Wi-Fi® CERTIFIED™
Wireless MCU Modules
1 Features
• CC3220MODx is a family of wireless MCU
modules consisting of SimpleLink™ Wi-Fi®
single chip wireless MCUs—the CC3220MODS
and CC3220MODAS modules consist of the
CC3220SM2ARGK wireless MCU, while the
CC3220MODSF and CC3220MODASF modules
consist of the CC3220SF12ARGK wireless MCU.
Fully integrated, industrial temperature-grade,
green modules include all required clocks, SPI
Flash, and passives
• CC3220MODAx modules include an integral
antenna for easy integration into the host system
• CC3220MODx and CC3220MODAx SimpleLink™
Wi-Fi® wireless MCU System-on-Chip (SoC)
contains a single chip with two separate execution
environments:
– User application dedicated Arm® Cortex®-M4
MCU
– Network processor MCU to run all Wi-Fi and
internet logical layers
• FCC, IC, CE, MIC, and SRRC Certified
• Wi-Fi Alliance members can request certificate
transfer of Wi-Fi CERTIFIED™ modules
• 1.27-mm pitch QFM package for easy assembly
and low-cost PCB design
• Applications MCU subsystem:
– Arm® Cortex®-M4 core at 80 MHz
– Embedded memory:
• CC3220MODS and CC3220MODAx
variants include 256KB of RAM
• CC3220MODSF and CC3220MODASF are
Flash-based MCUs with an integrated 1MB
of Flash and 256KB of RAM
• Peripheral drivers in ROM
– McASP supports two I2S channels
– SD
– SPI
– I2C
– UART
– 8-Bit synchronous image interface
– Four General-Purpose Timers (GPTs) with
16-Bit PWM mode
– One Watchdog Timer Module
– 4-channel, 12-bit Analog-to-Digital Converters
(ADCs)
– Debug interfaces: JTAG, cJTAG, and SWD
• Wi-Fi network processor subsystem:
– Wi-Fi® Internet-on-a chip™ dedicated Arm®
MCU completely offloads Wi-Fi and internet
protocols from the application MCU
– Wi-Fi® Modes:
• 802.11b/g/n Station
• 802.11b/g/n Access Point Supports up to
Four Stations
• Wi-Fi Direct® Client and Group Owner
• WPA2™ Personal and Enterprise Security:
WEP, WPA™, WPA2 PSK, and WPA2
Enterprise (802.1x), WPA3™ personal and
enterprise
• IPv4 and IPv6 TCP and IP Stack
• Industry-Standard BSD Socket Application
Programming Interfaces (APIs):
– 16 Simultaneous TCP or UDP Sockets
– 6 Simultaneous TLS and SSL Sockets
• IP Addressing: StaticIP, LLA, DHCPv4,
DHCPv6 with Duplicate Address Detection
(DAD)
• SimpleLink™ technology connection
manager for autonomous and fast Wi-Fi
connections
• Flexible Wi-Fi provisioning with
SmartConfig™ technology, AP Mode, and
WPS2 Options
• RESTful API support using internal HTTP
server
• Embedded network applications running on
dedicated network processor
• Wide set of security features:
– Hardware features:
• Separate execution environments
• Device identity
• Hardware crypto engine for advanced
fast security, including: AES, DES,
3DES, SHA2, MD5, CRC, and
Checksum
– Initial secure programming:
• Debug security
• JTAG and debug ports are locked
– Personal and enterprise Wi-Fi security
– Secure sockets
(SSLv3, TLS1.0, TLS1.1, TLS1.2)
• Networking security
– HTTPS server
– Trusted Root-Certificate Catalog
– TI Root-of-Trust Public Key
• SW IP protection:
– Secure key storage
CC3220MOD, CC3220MODA
SWRS206E – MARCH 2017 – REVISED MAY 2021
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

– File system security
– Software tamper detection
– Cloning protection
– Secure Boot: Validate integrity and
authenticity of runtime binary during boot
• Embedded network applications running on
dedicated network processor:
– HTTP and HTTPS web server with
dynamic user callbacks
– mDNS, DNS-SD, and DHCP Servers
– Ping
• Recovery mechanism: can recover to
factory defaults or to complete factory image
– Wi-Fi TX power:
• 17.0 dBm at 1 DSSS
• 13.5 dBm at 54 OFDM
– Wi-Fi RX sensitivity:
• –95.0 dBm at 1 DSSS
• –73.5 dBm at 54 OFDM
– Application Throughput:
• UDP: 16 Mbps
• TCP: 13 Mbps
• Power-management subsystem:
– Integrated DC/DC converter with
a wide-supply voltage
• VBAT: 2.3 to 3.6 V
– Advanced low-power modes:
• Shutdown: 1 µA
• Hibernate: 5 µA
• Low-Power Deep Sleep (LPDS): 135
µA (measured on CC3220MODS and
CC3220MODSF with 256KB RAM retention)
• RX Traffic (MCU Active): 59 mA (measured
on CC3220MODS; CC3220MODSF and
CC3220MODASF consume an additional
15 mA) at 54 OFDM
• TX Traffic (MCU Active): 223 mA (measured
on CC3220MODS; CC3220MODSF and
CC3220MODASF consume an additional
15 mA) at 54 OFDM, maximum power
• Idle connected (MCU in LPDS): 710
µA (measured on CC3220MODS and
CC3220MODSF with 256KB RAM retention)
at DTIM = 1
• Additional integrated components:
– 40.0-MHz crystal
– 32.768-kHz crystal (RTC)
– 32-Mbit SPI Serial Flash
– RF filter and passive components
• Footprint compatible QFM package:
– CC3220MODx: 1.27-mm pitch,
63-pin, 20.5-mm × 17.5-mm
– CC3220MODAx: 1.27-mm pitch,
63-pin, 20.5-mm × 25.0-mm
• Operating temperature:
– Ambient temperature range: –40°C to +85°C
• Module supports SimpleLink Developer's
Ecosystem
2 Applications
•Internet-of-Things (IoT)
•Building automation
• Low-Power Video Cameras
• Thermostats
• Access Control and Electronic Locks (E-Locks)
• Asset Tracking and Real Time Location System
(RTLS) Tags
• Cloud Connectivity
• Internet Gateway
• Appliances
• Security Systems
•Smart energy
• Industrial Control
• Smart Plug and Metering
• Wireless Audio
• IP Network Sensor Nodes
•Medical Devices
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3 Description
Start your design with the fully programmable FCC, IC, CE, MIC, and SRRC Certified wireless microcontroller
(MCU) module with built-in Wi-Fi connectivity. Created for the IoT, the SimpleLink™ CC3220MODx and
CC3220MODAx module family from Texas Instruments™ is a wireless module that integrates two physically
separated on-chip MCUs.
• An application processor—Arm® Cortex®-M4 MCU with a user-dedicated 256KB of RAM, with 1MB of XIP
Flash available on the CC3220SF variant.
• A network processor MCU to run all Wi-Fi® and Internet logical layers. This ROM-based subsystem includes
an 802.11b/g/n radio, baseband, and MAC with a powerful crypto engine for fast, secure internet connections
with 256-bit encryption.
The CC3220MODx and CC3220MODAx wireless MCU family is a part of the second generation of the Internet-
on-a chip™ family of solutions from TI. This generation introduces new features and capabilities that further
simplify the connectivity of things to the internet. The new capabilities include:
• IPv6
• Enhanced Wi-Fi provisioning
• Optimized low-power management
• Enhanced file-system security
• Wi-Fi AP connection with up to four stations
• More concurrently opened BSD sockets—up to 16 BSD sockets (6 are secure HTTPS support)
• HTTPS support
• RESTful API support
• Asymmetric keys crypto library
The CC3220MODx and CC3220MODAx wireless MCU family supports the following modes: station, AP, and
Wi-Fi Direct®. The CC3220MODx and CC3220MODAx modules also supports WPA2 and WPA3 personal and
enterprise security. This subsystem includes embedded TCP/IP and TLS/SSL stacks, HTTP server, and multiple
Internet protocols. The module supports a variety of Wi-Fi provisioning methods, including HTTP based on AP
mode, SmartConfig™ technology, and WPS2.0.
The power-management subsystem includes integrated DC/DC converters that support a wide range of supply
voltages. This subsystem enables low-power consumption modes for extended battery life, such as low-power
deep sleep, hibernate with RTC (consuming only 5 µA), and shutdown mode (consuming only
1 µA).
The module includes a wide variety of peripherals, including a fast parallel camera interface, I2S, SD, UART,
SPI, I2C, and a 4-channel ADC.
The SimpleLink CC3220MODx and CC3220MODAx module family come in four different module variants:
CC3220MODS, CC3220MODSF, CC3220MODA, and CC3220MODASF.
• The CC3220MODS and CC3220MODAS modules include 256KB on application-dedicated embedded RAM
for code and data. In addition, the CC3220MODAS includes an integral antenna.
• The CC3220MODSF and CC3220MODASF modules include application-dedicated 1MB of Serial Flash and
256KB of RAM for code and data. In addition, the CC3220MODASF includes an integral antenna.
The four modules integrate the 40-MHz crystal, 32.768-kHz RTC clock, 32-Mb SPI serial Flash, RF filter, and
passive components. The modules also have additional security features, such as encrypted and authenticated
file systems, user IP encryption and authentication, secured boot (authentication and integrity validation of the
application image at Flash boot time), and more.
The CC3220MODx and CC3220MODAx devices are a part of the SimpleLink™ MCU platform, which consists
of Wi-Fi, Bluetooth® low energy, Sub-1 GHz, and host MCUs. All share a common, easy-to-use development
environment with a single core software development kit (SDK) and rich tool set. A one-time integration of the
SimpleLink platform lets you add any combination of devices from the portfolio into your design. The ultimate
goal of the SimpleLink platform is to achieve 100 percent code reuse when your design requirements change.
The CC3220MODx and CC3220MODAx module family is a complete platform solution including software,
sample applications, tools, user and programming guides, reference designs, and the E2E™ online community.
www.ti.com
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The module family is also part of the SimpleLink™ MCU portfolio and supports the SimpleLink™ developers
ecosystem. For more information, visit www.ti.com/simplelink.
Device Information(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
CC3220MODSM2MOBR QFM (63) 20.50 mm × 17.50 mm
CC3220MODSF12MOBR QFM (63) 20.50 mm × 17.50 mm
CC3220MODASM2MONR QFM (63) 25.50 mm × 20.50 mm
CC3220MODASF12MONR QFM (63) 25.50 mm × 20.50 mm
(1) For more information, see Section 13.
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4 Functional Block Diagrams
Figure 4-1 shows the functional block diagram of the CC3220MODx module.
CC3x20
MAC/PHY
WRF F
BGN
RF_ANT1
User GPIOs
32-Mbit
SFlash
External SPI
Programming
40 MHz
32.768 kHz
UART
SPI
nReset
PM
2.3 V to 3.6 V
VBAT
Figure 4-1. CC3220MODx Functional Block Diagram
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Figure 4-2 shows the functional block diagram of the CC3220MODAx module.
CC3x20
MAC/PHY
WRF F
BGN
RF_ANT1
User GPIOs
32-Mbit
SFlash
External SPI
Programming
40 MHz
32.768 kHz
UART
SPI
nReset
PM
2.3 V to 3.6 V
VBAT
Copyright © 2017, Texas Instruments Incorporated
Figure 4-2. CC3220MODAx Functional Block Diagram
For 3200MOD module pin multiplexing details, see the CC3200 SimpleLink™ Wi-Fi® Wireless and Internet-of-Things Solution, a
Single-Chip Wireless MCU data sheet.
Figure 4-3. CC3200MOD Module Functional Block Diagram
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Figure 4-4 shows the an overview of the CC3220x hardware.
CC32xx ±Single-Chip Wireless MCU
ARM
Cortex-M4
80 MHz
1-MB Flash (optional)
256-KB RAM
ROM
Peripherals
1x SPI
2x UART
1 I2C
1x I2S/PCM
1x SD/MMC
8-bit Camera
4x ADC
System
DMA
Timers
GPIOs
Network Processor
Application
Protocols
RAM
ROM
Crypto Engine
Wi-Fi Driver
TCP/IP Stack
(ARM Cortex)
Power
Management
Oscillators
DC-DC
RTC
Baseband
MAC
Processor
Radio
Synthesizer
Copyright © 2017, Texas Instruments Incorporated
Figure 4-4. CC3220x Hardware Overview
Figure 4-5 shows the an overview of the CC3220x embedded software.
Customer Application
Peripherals
Driver SimpleLink Driver APIs
NetApp BSD
Socket Wi-Fi
Host Interface
Network Applications
WLAN Security
and
Management
TCP/IP Stack
WLAN MAC and PHY
Applications MCU
Network Processor
Figure 4-5. CC3220x Embedded Software Overview
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Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 2
3 Description.......................................................................3
4 Functional Block Diagrams............................................ 5
5 Revision History.............................................................. 8
6 Device Comparison......................................................... 9
6.1 Related Products...................................................... 10
7 Terminal Configuration and Functions........................ 11
7.1 CC3220MODx and CC3220MODAx Pin Diagram.... 11
7.2 Pin Attributes.............................................................13
7.3 Connections for Unused Pins................................... 14
7.4 Pin Attributes and Pin Multiplexing........................... 15
7.5 Drive Strength and Reset States for Analog-
Digital Multiplexed Pins............................................... 26
7.6 Pad State After Application of Power to Chip, but
Before Reset Release................................................. 26
8 Specifications................................................................ 27
8.1 Absolute Maximum Ratings...................................... 27
8.2 ESD Ratings............................................................. 27
8.3 Recommended Operating Conditions.......................27
8.4 Current Consumption (CC3220MODS and
CC3220MODAS).........................................................28
8.5 Current Consumption (CC3220MODSF and
CC3220MODASF).......................................................29
8.6 TX Power and IBAT Versus TX Power Level
Settings....................................................................... 30
8.7 Brownout and Blackout Conditions........................... 32
8.8 Electrical Characteristics...........................................33
8.9 CC3220MODAx Antenna Characteristics................. 35
8.10 WLAN Receiver Characteristics..............................35
8.11 WLAN Transmitter Characteristics.......................... 35
8.12 Reset Requirement................................................. 35
8.13 Thermal Resistance Characteristics for MOB
and MON Packages.................................................... 36
8.14 Timing and Switching Characteristics..................... 36
9 Detailed Description......................................................48
9.1 Overview................................................................... 48
9.2 Arm® Cortex®-M4 Processor Core Subsystem.........48
9.3 Wi-Fi® Network Processor Subsystem..................... 48
9.4 Security..................................................................... 51
9.5 Power-Management Subsystem...............................53
9.6 Low-Power Operating Mode..................................... 53
9.7 Memory..................................................................... 55
9.8 Restoring Factory Default Configuration...................57
9.9 Boot Modes...............................................................57
9.10 Device Certification and Qualification..................... 58
9.11 Module Markings.....................................................60
9.12 End Product Labeling..............................................62
9.13 Manual Information to the End User....................... 62
10 Applications, Implementation, and Layout............... 63
10.1 Typical Application.................................................. 64
10.2 Device Connection and Layout Fundamentals....... 67
10.3 PCB Layout Guidelines...........................................67
11 Environmental Requirements and Specifications.... 73
11.1 PCB Bending...........................................................73
11.2 Handling Environment.............................................73
11.3 Storage Condition................................................... 73
11.4 Baking Conditions................................................... 73
11.5 Soldering and Reflow Condition..............................74
12 Device and Documentation Support..........................75
12.1 Development Tools and Software........................... 75
12.2 Firmware Updates...................................................75
12.3 Device Nomenclature..............................................76
12.4 Documentation Support.......................................... 77
12.5 Trademarks.............................................................79
13 Mechanical, Packaging, and Orderable
Information.................................................................... 80
13.1 Mechanical, Land, and Solder Paste Drawings ..... 80
13.2 Package Option Addendum.................................... 80
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from September 22, 2020 to May 13, 2021 (from Revision D (September 2020) to
Revision E (May 2021)) Page
• Added WPA3 personal and enterprise to Section 1 ...........................................................................................1
• Updated the numbering format for tables, figures, and cross-references throughout the document..................1
• Added WPA3 personal and enterprise to Section 3 ...........................................................................................3
• Added WPA3 personal and enterprise to Table 6-1 ...........................................................................................9
• Added WPA3 personal and enterprise to Section 9.3 ......................................................................................48
• Added WPA3 Personal and WPA3 Enterprise to Section 9.3.1 .......................................................................49
• Added WPA3 personal and enterprise to Table 9-1 .........................................................................................49
• Added CC3220MODA reel information in Section 13.2 ...................................................................................80
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6 Device Comparison
Table 6-1 shows the features supported across different CC3x20 modules.
Table 6-1. Device Features Comparison
FEATURE DEVICE
CC3120MOD CC3220MODS CC3220MODSF CC3220MODAS CC3220MODASF
On-board chip CC3120 CC3220S CC3220SF CC3220S CC3220SF
On-board ANT No No No Yes Yes
sFlash 32-Mbit 32-Mbit 32-Mbit 32-Mbit 32-Mbit
Regulatory certifications FCC, IC, CE, MIC,
SRRC
FCC, IC, CE, MIC,
SRRC
FCC, IC, CE, MIC,
SRRC FCC, IC, CE, MIC, SRRC FCC, IC, CE, MIC, SRRC
Wi-Fi Alliance®
Certification Yes Yes Yes Yes Yes
Input voltage 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V 2.3 V to 3.6 V
Package 17.5 mm × 20.5 mm
QFM
17.5 mm × 20.5 mm
QFM
17.5 mm × 20.5 mm
QFM 25.0 mm × 20.5 mm QFM 25.0 mm × 20.5 mm QFM
Operating temperature
range –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C
Classification Wi-Fi Network
Processor Wireless Microcontroller Wireless Microcontroller Wireless Microcontroller Wireless Microcontroller
Standard 802.11 b/g/n 802.11 b/g/n 802.11 b/g/n 802.11 b/g/n 802.11 b/g/n
Frequency 2.4 GHz 2.4 GHz 2.4 GHz 2.4 GHz 2.4 GHz
TCP/IP Stack IPv4, IPv6 IPv4, IPv6 IPv4, IPv6 IPv4, IPv6 IPv4, IPv6
Sockets 16 16 16 16 16
Integrated MCU – Arm® Cortex®-M4 at 80
MHz
Arm® Cortex®-M4 at
80 MHz
Arm® Cortex®-M4 at 80
MHz
Arm® Cortex®-M4 at 80
MHz
ON-CHIP APPLICATION MEMORY
RAM – 256KB 256KB 256KB 256KB
Flash – – 1MB – 1MB
PERIPHERALS AND INTERFACES
Universal Asynchronous
Receiver/Transmitter
(UART)
1 2 2 2 2
Serial Port Interface (SPI) 1 1 1 1 1
Multichannel Audio Serial
Port (McASP)- I2S or
PCM
– 2-ch 2-ch 2-ch 2-ch
Inter-Integrated Circuit
(I2C) – 1 1 1 1
Analog-to-digital converter
(ADC) – 4-ch, 12-bit 4-ch, 12-bit 4-ch, 12-bit 4-ch, 12-bit
Parallel interface (8-bit PI) – 1 1 1 1
General-purpose timers – 4 4 4 4
Multimedia card (MMC /
SD) – 1 1 1 1
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Table 6-1. Device Features Comparison (continued)
FEATURE DEVICE
CC3120MOD CC3220MODS CC3220MODSF CC3220MODAS CC3220MODASF
SECURITY FEATURES
Wi-Fi level of security
WEP, WPS, WPA /
WPA2 PSK WPA2
(802.1x), WPA3
personal and
enterprise
WEP, WPS, WPA /
WPA2 PSK WPA2
(802.1x), WPA3 personal
and enterprise
WEP, WPS, WPA /
WPA2 PSK WPA2
(802.1x), WPA3
personal and
enterprise
WEP, WPS, WPA / WPA2
PSK WPA2 (802.1x), WPA3
personal and enterprise
WEP, WPS, WPA / WPA2
PSK WPA2 (802.1x),
WPA3 personal and
enterprise
Secure sockets (SSL v3
or TLS 1.0 /1.1/ 1.2) 6 6 6 6 6
Additional networking
security
Unique Device Identity
Trusted Root-
Certificate Catalog
TI Root-of-Trust Public
key
Unique Device Identity
Trusted Root-Certificate
Catalog
TI Root-of-Trust Public
key
Unique Device Identity
Trusted Root-
Certificate Catalog
TI Root-of-Trust Public
key
Unique Device Identity
Trusted Root-Certificate
Catalog
TI Root-of-Trust Public key
Unique Device Identity
Trusted Root-Certificate
Catalog
TI Root-of-Trust Public
key
Hardware acceleration Hardware Crypto
Engines
Hardware Crypto
Engines
Hardware Crypto
Engines Hardware Crypto Engines Hardware Crypto Engines
Secure boot – Yes Yes Yes Yes
Enhanced Application
Level Security –
File system security
Secure key storage
Software tamper
detection
Cloning protection
Initial secure
programming
File system security
Secure key storage
Software tamper
detection
Cloning protection
Initial secure
programming
File system security
Secure key storage
Software tamper detection
Cloning protection
Initial secure programming
File system security
Secure key storage
Software tamper
detection
Cloning protection
Initial secure
programming
6.1 Related Products
For information about other devices in this family of products or related products see the links below.
The SimpleLink™ MCU
Portfolio
offers a single development environment that delivers flexible hardware, software
and tool options for customers developing wired and wireless applications. With 100
percent code reuse across host MCUs, Wi-Fi®, Bluetooth® low energy, Sub-1GHz
devices and more, choose the MCU or connectivity standard that fits your design. A
one-time investment with the SimpleLink software development kit (SDK) allows you
to reuse often, opening the door to create unlimited applications.
Companion Products Review products that are frequently purchased or used in conjunction with this
product.
SimpleLink™ Wi-Fi®
Family
The SimpleLink Wi-Fi Family offers several Internet-on-a chip solutions, which
address the need of battery operated, security enabled products. Texas instruments
offers a single chip wireless microcontroller and a wireless network processor which
can be paired with any MCU, to allow developers to design new wi-fi products, or
upgrade existing products with wi-fi capabilities.
BoosterPack™ Plug-In
Modules
BoosterPack™ Plug-In Modules extend the functionality of TI LaunchPad Kit.
Application specific BoosterPack Plug in modules allow you to explore a broad range
of applications, including capacitive touch, wireless sensing, LED Lighting control,
and more. Stack multiple BoosterPack modules onto a single LaunchPad kit to further
enhance the functionality of your design.
Reference Designs for
CC3200 and CC3220
Modules
TI Designs Reference Design Library is a robust reference design library spanning
analog, embedded processor and connectivity. Created by TI experts to help you
jump start your system design, all TI Designs include schematic or block diagrams,
BOMs and design files to speed your time to market. Search and download designs
at ti.com/tidesigns.
SimpleLink™ Wi-Fi®
CC3220 SDK
The SimpleLink Wi-Fi CC3220 SDK contains drivers for the CC3220 programmable
MCU, sample applications, and documentation required to start development with
CC3220 solutions.
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7 Terminal Configuration and Functions
7.1 CC3220MODx and CC3220MODAx Pin Diagram
CC3220MODx Pin Diagram Bottom View shows the pin diagram for the CC3220MODx module.
CC3220MODx
63
59
62 61
60
57
56
58
55
FLASH_SPI_nCS_IN
FLASH_SPI_MOSI
12
11
10
9
8
7
6
5
4
3
2
1
13
15
16
14
GND
FLASH_SPI_CLK
FLASH_SPI_MISO
JTAG_TDI
GPIO22
GPIO13
GPIO12
GPIO17
GPIO16
GPIO15
GPIO14
GPIO11
GPIO10
GND
GND
2623
22
21 27252420
1918
17
GND
ANT_SEL2 ANT_SEL1
SOP1 SOP2
JTAG_TMS
JTAG_TCK
NC
GPIO28
JTAG_TDO
32
33
34
35
36
37
38
39
40
41
42
43
31
29
28
30
4548
49
50 44464751
5253
54
GPIO0
NC GPIO1
GPIO2
GPIO3
GPIO4 GPIO5 GPIO6 GPIO7
GPIO8 GPIO9
GND
NC
GND
RF_BG
GND
NC
SOP0
nRESET
VBAT_RESET
VBAT1
GND
NC
VBAT2
NC
GPIO30
GND
CC3220MODx Pin Diagram Bottom View shows the approximate location of pins on the module. For the actual mechanical diagram,
see Section 13.
Figure 7-1. CC3220MODx Pin Diagram Bottom View
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Figure 7-2 shows the pin diagram for the CC3220MODAx module.
CC3220MODAx
63
59
62 61
60
57
56
58
55
FLASH_SPI_nCS_IN
FLASH_SPI_MOSI
12
11
10
9
8
7
6
5
4
3
2
1
13
15
16
14
GND
FLASH_SPI_CLK
FLASH_SPI_MISO
JTAG_TDI
GPIO22
GPIO13
GPIO12
GPIO17
GPIO16
GPIO15
GPIO14
GPIO11
GPIO10
GND
GND
2623
22
21 27252420
1918
17
GND
ANT_SEL2 ANT_SEL1
SOP1 SOP2
JTAG_TMS
JTAG_TCK
NC
GPIO28
JTAG_TDO
32
33
34
35
36
37
38
39
40
41
42
43
31
29
28
30
4548
49
50 44464751
5253
54
GPIO0
NC GPIO1
GPIO2
GPIO3
GPIO4 GPIO5 GPIO6 GPIO7
GPIO8 GPIO9
GND
NC
GND
RF_BG
GND
NC
SOP0
nRESET
VBAT_RESET
VBAT1
GND
NC
VBAT2
NC
GPIO30
GND
PCB Antenna
Figure 7-2. CC3220MODAx Pin Diagram Bottom View
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7.2 Pin Attributes
Section 7.2.1 lists the pin descriptions of the CC3220MODx and CC3220MODAx module.
7.2.1 Module Pin Attributes
MODULE PIN TYPE(1) CC3220 DEVICE
PIN NO. MODULE PIN DESCRIPTION
NO. NAME
1 GND – – Ground
2 GND – – Ground
3 GPIO10 I/O 1 GPIO(2)
4 GPIO11 I/O 2 GPIO(2)
5 GPIO14 I/O 5 GPIO(2)
6 GPIO15 I/O 6 GPIO(2)
7 GPIO16 I/O 7 GPIO(2)
8 GPIO17 I/O 8 GPIO(2)
9 GPIO12 I/O 3 GPIO(2)
10 GPIO13 I/O 4 GPIO(2)
11 GPIO22 I/O 15 GPIO(2)
12 JTAG_TDI I/O 16 JTAG TDI input. Leave unconnected if not used on product(2)
13 FLASH_SPI_MISO I – External Serial Flash Programming: SPI data in
14 FLASH_SPI_nCS_IN I – External Serial Flash Programming: SPI chip select (active low)
15 FLASH_SPI_CLK I – External Serial Flash Programming: SPI clock
16 GND – – Ground
17 FLASH_SPI_MOSI O – External Serial Flash Programming: SPI data out
18 JTAG_TDO I/O 17 JTAG TDO output. Leave unconnected if not used on product(1)
19 GPIO28 I/O 18 GPIO(2)
21 JTAG_TCK I/O 19 JTAG TCK input. Leave unconnected if not used on product.(2)
22 JTAG_TMS I/O 20 JTAG TMS input. Leave unconnected if not used on product.(2)
23 SOP2 – 21 See Section 9.9.1 for SOP[2:0] configuration modes.
24 SOP1 – 34 See Section 9.9.1 for SOP[2:0] configuration modes.
25 ANT_SEL1 I/O 29 Antenna selection control(2)
26 ANT_SEL2 I/O 30 Antenna selection control(2)
27 GND – – Ground
28 GND – – Ground
30 GND – – Ground
31 RF_BG I/O 31 2.4-GHz RF input/output
32 GND – – Ground
34 SOP0 – 35 See Section 9.9.1 for SOP[2:0] configuration modes.
35 nRESET I 32 There is an internal, 100 kΩ, pull-up resistor option from
the nRESET pin to VBAT_RESET. Note: VBAT_RESET is not
connected to VBAT1 or VBAT2 within the module. The following
connection schemes are recommended:
• Connect nRESET to a switch, external controller, or host,
only if nRESET will be in a defined state under all
operating conditions. Leave VBAT_RESET unconnected to
save power.
• If nRESET cannot be in a defined state under all operating
conditions, connect VBAT_RESET to the main module
power supply (VBAT1 and VBAT2). Due to the internal pull-
up resistor a leakage current of 3.3 V / 100 kΩ is expected.
36 VBAT_RESET – 37
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MODULE PIN TYPE(1) CC3220 DEVICE
PIN NO. MODULE PIN DESCRIPTION
NO. NAME
37 VBAT1 Power 39 Power supply for the module, must be connected to battery (2.3
V to 3.6 V)
38 GND – – Ground
40 VBAT2 Power 10, 44, 54 Power supply for the module, must be connected to battery (2.3
V to 3.6 V)
42 GPIO30 I/O 53 GPIO(2)
43 GND – – Ground
44 GPIO0 I/O 50 GPIO(2)
46 GPIO1 I/O 55 GPIO(2)
47 GPIO2 I/O 57 GPIO(2)
48 GPIO3 I/O 58 GPIO(2)
49 GPIO4 I/O 59 GPIO(2)
50 GPIO5 I/O 60 GPIO(2)
51 GPIO6 I/O 61 GPIO(2)
52 GPIO7 I/O 62 GPIO(2)
53 GPIO8 I/O 63 GPIO(2)
54 GPIO9 I/O 64 GPIO(2)
55 GND – – Thermal ground
56 GND – – Thermal ground
57 GND – – Thermal ground
58 GND – – Thermal ground
59 GND – – Thermal ground
60 GND – – Thermal ground
61 GND – – Thermal ground
62 GND – – Thermal ground
63 GND – – Thermal ground
(1) I = input; O = output; I/O = bidirectional
(2) For pin multiplexing details, see Table 7-3.
7.3 Connections for Unused Pins
All unused pins must be left as no connect (NC) pins. Table 7-1 and Table 7-2 list the NC pins on the
CC3220MODx and CC3220MODAx modules, respectively.
Table 7-1. Connections for Unused Pins
PIN DEFAULT
FUNCTION
STATE AT RESET AND
HIBERNATE I/O TYPE DESCRIPTION
20 NC WLAN analog – Reserved. Do not connect.
29 NC WLAN analog – Reserved. Do not connect.
33 NC WLAN analog – Reserved. Do not connect.
39 NC WLAN analog – Reserved. Do not connect.
41 NC WLAN analog – Reserved. Do not connect.
45 NC WLAN analog – Reserved. Do not connect.
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Table 7-2. CC3220MODAx Connections for Unused Pins
PIN DEFAULT
FUNCTION
STATE AT RESET AND
HIBERNATE I/O TYPE DESCRIPTION
20 NC WLAN analog – Reserved. Do not connect.
29 NC WLAN analog – Reserved. Do not connect.
31 NC WLAN analog – Reserved. Do not connect.
33 NC WLAN analog – Reserved. Do not connect.
39 NC WLAN analog – Reserved. Do not connect.
41 NC WLAN analog – Reserved. Do not connect.
45 NC WLAN analog – Reserved. Do not connect.
7.4 Pin Attributes and Pin Multiplexing
The module makes extensive use of pin multiplexing to accommodate the large number of peripheral functions in
the smallest possible package. To achieve this configuration, pin multiplexing is controlled using a combination of
hardware configuration (at module reset) and register control.
The board and software designers are responsible for the proper pin multiplexing configuration. Hardware does
not ensure that the proper pin multiplexing options are selected for the peripherals or interface mode used. Table
7-3 describes the general pin attributes and presents an overview of pin multiplexing. All pin multiplexing options
are configurable using the pin MUX registers. The following special considerations apply:
• All I/Os support drive strengths of 2, 4, and 6 mA. Drive strength is individually configurable for each pin.
• All I/Os support 10-μA pullup and pulldown resistors.
• By default, all I/Os float in the Hibernate state. However, the default state can be changed by SW.
• All digital I/Os are non fail-safe.
Note
If an external device drives a positive voltage to the signal pads and the CC3220MODx or
CC3220MODAx modules are not powered, DC is drawn from the other device. If the drive strength
of the external device is adequate, an unintentional wakeup and boot of the CC3220MODx or
CC3220MODAx modules can occur. To prevent current draw, TI recommends any one of the following
conditions:
• All devices interfaced to CC3220MODx and CC3220MODAx modules must be powered from the
same power rail as the chip.
• Use level shifters between the device and any external devices fed from other independent rails.
• The nRESET pin of the CC3220MODx and CC3220MODAx modules must be held low until the
VBAT supply to the module is driven and stable.
• All GPIO pins default to high impedance unless programmed by the MCU. The bootloader sets the
TDI, TDO, TCK, TMS, and Flash_SPI pins to mode 1. All the other pins are left in the Hi-Z state.
Table 7-3. Pin Attributes and Pin Multiplexing
GENERAL PIN ATTRIBUTES FUNCTION PAD STATES
Pkg.
Pin
Pin
Alias Use
Select
as
Wakeu
p
Source
Confi
g.
Addl.
Analo
g Mux
Muxed
With
JTAG
Dig. Pin
Mux
Config.
Reg.
Dig.
Pin
Mux
Confi
g.
Mode
Value
Signal Name Signal
Description
Signa
l
Direct
ion
LPD
S(1) Hib(2) nRESET = 0
1 GND GND N/A N/A N/A N/A N/A GND GND N/A N/A N/A N/A
2 GND GND N/A N/A N/A N/A N/A GND GND N/A N/A N/A N/A
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Table 7-3. Pin Attributes and Pin Multiplexing (continued)
GENERAL PIN ATTRIBUTES FUNCTION PAD STATES
Pkg.
Pin
Pin
Alias Use
Select
as
Wakeu
p
Source
Confi
g.
Addl.
Analo
g Mux
Muxed
With
JTAG
Dig. Pin
Mux
Config.
Reg.
Dig.
Pin
Mux
Confi
g.
Mode
Value
Signal Name Signal
Description
Signa
l
Direct
ion
LPD
S(1) Hib(2) nRESET = 0
3 GPIO10 I/O No No No
GPIO_PA
D_
CONFIG_1
0
(0x4402
E0C8)
0 GPIO10 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
1 I2C_SCL I2C clock
I/O
(open
drain)
Hi-Z,
Pull,
Drive
3 GT_PWM06
Pulse-width
modulated
O/P
O
Hi-Z,
Pull,
Drive
7 UART1_TX UART TX
data O 1
6SDCARD_CL
KSD card clock O 0
12 GT_CCP01 Timer capture
port I
Hi-Z,
Pull,
Drive
4 GPIO11 I/O Yes No No
GPIO_PA
D_
CONFIG_1
1
(0x4402
E0CC)
0 GPIO11 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
1 I2C_SDA I2C data
I/O
(open
drain)
Hi-Z,
Pull,
Drive
3 GT_PWM07
Pulse-width
modulated
O/P
O
Hi-Z,
Pull,
Drive
4pXCLK
(XVCLK)
Free clock to
parallel
camera
O 0
6SDCARD_C
MD
SD card
command line
I/O
(open
drain)
Hi-Z,
Pull,
Drive
7 UART1_RX UART RX
data I
Hi-Z,
Pull,
Drive
12 GT_CCP02 Timer capture
port I
Hi-Z,
Pull,
Drive
13 MCAFSX I2S audio port
frame sync O
Hi-Z,
Pull,
Drive
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Table 7-3. Pin Attributes and Pin Multiplexing (continued)
GENERAL PIN ATTRIBUTES FUNCTION PAD STATES
Pkg.
Pin
Pin
Alias Use
Select
as
Wakeu
p
Source
Confi
g.
Addl.
Analo
g Mux
Muxed
With
JTAG
Dig. Pin
Mux
Config.
Reg.
Dig.
Pin
Mux
Confi
g.
Mode
Value
Signal Name Signal
Description
Signa
l
Direct
ion
LPD
S(1) Hib(2) nRESET = 0
5 GPIO14 I/O No No No
GPIO_PA
D_
CONFIG_1
4
(0x4402
E0D8)
0 GPIO14 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
5 I2C_SCL I2C clock
I/O
(open
drain)
7 GSPI_CLK General SPI
clock I/O
4pDATA8
(CAM_D4)
Parallel
camera data
bit 4
I
12 GT_CCP05 Timer capture
port I
6 GPIO15 I/O No No No
GPIO_PA
D_
CONFIG_1
5
(0x4402
E0DC)
0 GPIO15 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
5 I2C_SDA I2C data
I/O
(open
drain)
7 GSPI_MISO General SPI
MISO I/O
4pDATA9
(CAM_D5)
Parallel
camera data
bit 5
I
13 GT_CCP06 Timer capture
port I
8SDCARD_
DATA0 SD card data I/O
7 GPIO16 I/O No No No
GPIO_PA
D_
CONFIG_1
6
(0x4402
E0E0)
0 GPIO16 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
7 GSPI_MOSI General SPI
MOSI I/O
Hi-Z,
Pull,
Drive
4pDATA10
(CAM_D6)
Parallel
camera data
bit 6
I
Hi-Z,
Pull,
Drive
5 UART1_TX UART1 TX
data O 1
13 GT_CCP07 Timer capture
port I
Hi-Z,
Pull,
Drive
8SDCARD_CL
KSD card clock O Zero
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Table 7-3. Pin Attributes and Pin Multiplexing (continued)
GENERAL PIN ATTRIBUTES FUNCTION PAD STATES
Pkg.
Pin
Pin
Alias Use
Select
as
Wakeu
p
Source
Confi
g.
Addl.
Analo
g Mux
Muxed
With
JTAG
Dig. Pin
Mux
Config.
Reg.
Dig.
Pin
Mux
Confi
g.
Mode
Value
Signal Name Signal
Description
Signa
l
Direct
ion
LPD
S(1) Hib(2) nRESET = 0
8 GPIO17 I/O Yes No No
GPIO_PA
D_
CONFIG_1
7
(0x4402
E0E4)
0 GPIO17 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
5 UART1_RX UART1 RX
data I
7 GSPI_CS General SPI
chip select I/O
4pDATA11
(CAM_D7)
Parallel
camera data
bit 7
I
8SDCARD_
CMD
SD card
command line I/O
9 GPIO12 I/O No No No
GPIO_PA
D_
CONFIG_1
2
(0x4402
E0D0)
0 GPIO12 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
3 McACLK I2S audio port
clock output O
Hi-Z,
Pull,
Drive
4pVS
(VSYNC)
Parallel
camera
vertical sync
I
Hi-Z,
Pull,
Drive
5 I2C_SCL I2C clock
I/O
(open
drain)
Hi-Z,
Pull,
Drive
7 UART0_TX UART0 TX
data O 1
12 GT_CCP03 Timer capture
port I
Hi-Z,
Pull,
Drive
10 GPIO13 I/O Yes No No
GPIO_PA
D_
CONFIG_1
3
(0x4402
E0D4)
0 GPIO13 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
5 I2C_SDA I2C data
I/O
(open
drain)
4pHS
(HSYNC)
Parallel
camera
horizontal
sync
I
7 UART0_RX UART0 RX
data I
12 GT_CCP04 Timer capture
port I
11 GPIO22 I/O No No No
GPIO_PA
D_
CONFIG_2
2
(0x4402
E0F8)
0 GPIO22 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
7 McAFSX I2S audio port
frame sync O
5 GT_CCP04 Timer capture
port I
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Table 7-3. Pin Attributes and Pin Multiplexing (continued)
GENERAL PIN ATTRIBUTES FUNCTION PAD STATES
Pkg.
Pin
Pin
Alias Use
Select
as
Wakeu
p
Source
Confi
g.
Addl.
Analo
g Mux
Muxed
With
JTAG
Dig. Pin
Mux
Config.
Reg.
Dig.
Pin
Mux
Confi
g.
Mode
Value
Signal Name Signal
Description
Signa
l
Direct
ion
LPD
S(1) Hib(2) nRESET = 0
12 JTAG_T
DI I/O No No
Muxed
with
JTAG
TDI
GPIO_PA
D_
CONFIG_2
3
(0x4402
E0FC)
1 TDI
JTAG TDI.
Reset default
pinout.
IHi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
0 GPIO23 GPIO I/O
2 UART1_TX UART1 TX
data O 1
9 I2C_SCL I2C clock
I/O
(open
drain)
Hi-Z,
Pull,
Drive
13
FLASH_
SPI_
MISO
N/A N/A N/A N/A N/A N/A FLASH_SPI_
MISO
Data from SPI
serial Flash
(fixed default)
N/A Hi-Z Hi-Z Hi-Z
14
FLASH_
SPI_
nCS_IN
N/A N/A N/A N/A N/A N/A FLASH_SPI_
nCS_IN
Chip select to
SPI serial
Flash (fixed
default)
N/A 1
Hi-Z,
Pull,
Drive
Hi-Z
15
FLASH_
SPI_CL
K
N/A N/A N/A N/A N/A N/A FLASH_SPI_
CLK
Clock to SPI
serial Flash
(fixed default)
N/A
Hi-Z,
Pull,
Drive(3)
Hi-Z,
Pull,
Drive
Hi-Z
16 GND GND N/A N/A N/A N/A N/A GND GND N/A N/A N/A N/A
17
FLASH_
SPI_
MOSI
N/A N/A N/A N/A N/A N/A FLASH_SPI_
MOSI
Data to SPI
serial Flash
(fixed default)
N/A
Hi-Z,
Pull,
Drive(3)
Hi-Z,
Pull,
Drive
Hi-Z
18 JTAG_T
DO I/O Yes No
Muxed
with
JTAG
TDO
GPIO_PA
D_
CONFIG_
24
(0x4402
E100)
1 TDO
JTAG TDO.
Reset default
pinout.
O
Hi-Z,
Pull,
Drive
Drive
n
high
in
SWD;
drive
n low
in 4-
wire
JTAG
Hi-Z
0 GPIO24 GPIO I/O
5 PWM0
Pulse-width
modulated
O/P
O
2 UART1_RX UART1 RX
data I
9 I2C_SDA I2C data
I/O
(open
drain)
4 GT_CCP06 Timer capture
port I
6 McAFSX I2S audio port
frame sync O
19 GPIO28 I/O No No No
GPIO_PA
D_
CONFIG_
40
(0x4402
E140)
0 GPIO28 GPIO I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
20 NC WLAN
analog N/A N/A N/A N/A N/A NC Reserved N/A N/A N/A N/A
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Table 7-3. Pin Attributes and Pin Multiplexing (continued)
GENERAL PIN ATTRIBUTES FUNCTION PAD STATES
Pkg.
Pin
Pin
Alias Use
Select
as
Wakeu
p
Source
Confi
g.
Addl.
Analo
g Mux
Muxed
With
JTAG
Dig. Pin
Mux
Config.
Reg.
Dig.
Pin
Mux
Confi
g.
Mode
Value
Signal Name Signal
Description
Signa
l
Direct
ion
LPD
S(1) Hib(2) nRESET = 0
21 JTAG_T
CK I/O No No
Muxed
with
JTAG/
SWD-
TCK
GPIO_PA
D_
CONFIG_
28
(0x4402
E110)
1 TCK
JTAG/SWD
TCK.
Reset default
pinout.
IHi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
8 GT_PWM03
Pulse-width
modulated
O/P
O
22 JTAG_T
MS I/O No No
Muxed
with
JTAG/
SWD-
TMSC
GPIO_PA
D_
CONFIG_
29
(0x4402
E114)
1 TMS
JTAG/SWD
TMS.
Reset default
pinout. I/O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
0 GPIO29 GPIO
23(4) SOP2 O only No No No
GPIO_PA
D_
CONFIG_
25
(0x4402
E104)
0 GPIO25 GPIO O
Hi-Z,
Pull,
Drive
Drive
n
Low
Hi-Z
9 GT_PWM02
Pulse-width
modulated
O/P
O
Hi-Z,
Pull,
Drive
2 McAFSX I2S audio port
frame sync O
Hi-Z,
Pull,
Drive
See(5) TCXO_EN
Enable to
optional
external 40-
MHz TCXO
O 0
See(6) SOP2 Sense-on-
power 2 I
Hi-Z,
Pull,
Drive
24 SOP1 Config
sense N/A N/A N/A N/A N/A SOP1 Sense-on- power 1 N/A N/A N/A N/A
25(7) ANT_SE
L1 O only No
User
config
not
requir
ed
(8)
No
GPIO_PA
D_
CONFIG_2
6
(0x4402
E108)
0 ANTSEL1(3) Antenna selection
control
O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
26(7) ANT_SE
L2 O only No
User
config
not
requir
ed
(8)
No
GPIO_PA
D_
CONFIG_2
7
(0x4402
E10C)
0 ANTSEL2(3) Antenna selection
control
O
Hi-Z,
Pull,
Drive
Hi-Z,
Pull,
Drive
Hi-Z
27 GND GND N/A N/A N/A N/A N/A GND GND N/A N/A N/A N/A
28 GND GND N/A N/A N/A N/A N/A GND GND N/A N/A N/A N/A
29 NC WLAN
analog N/A N/A N/A N/A N/A NC Reserved N/A N/A N/A N/A
30 GND GND N/A N/A N/A N/A N/A GND GND N/A N/A N/A N/A
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