GridConnect GC-WIFI300-SMT User manual

GC-WIFI300-SMT
Grid Connect Inc.
Low Power Wi-Fi Module
User Manual
V 1.0

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
2
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
TABLE OF CONTENTS:
LIST OF FIGURES 3
LIST OF TABLES 3
HISTORY 3
PRODUCT OVERVIEW 4
General Description 4
Device Features 4
Device Paremeters 5
Key Application 5
Hardware Introduction 6
Pins Definition 6
Electrical Characteristics 7
Mechanical Size 8
On-board Chip Antenna 9
Order Information 10
PACKAGE INFORMATION 10
Recommended Reflow Profile 10
Device Handling Instruction (Module IC SMT Preparation) 11
Shipping Information 11
APPENDIX A: 88MW300 PIN MAPING 12

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
3
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
LIST OF FIGURES:
LIST OF TABLES:
HISTORY:
Figure 1. GC-WIFI300-SMT Pins Map 6
Figure 2. GC-WIFI300-SMT Mechanical Dimension 8
Figure 3. GC-WIFI300-SMT PCB Symbol Size 9
Figure 4. Suggested Module Placement Region 9
Figure 5. GC-WIFI300-SMT Order Information 10
Figure 6. Reflow Soldering Profile 10
Figure 7. Shipping Information 11
Table 1 GC-WIFI300-SMT Module Technical Specifications 5
Table 2 GC-WIFI300-SMT Pins Definition 6
Table 3 Reflow Soldering Parameter 10
Ed. V 1.0 Created on 9-6-2016

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
4
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
PRODUCT OVERVIEW
LIST OF FIGURES
The GC-WIFI300-SMT-01 is a fully certified, full featured, small form-factor, 802.11b/g/n Wi-Fi module
based on the Marvell 88MW300, which provides a wireless interface to any device with a Serial/SPI/
GPIO interface for data transfer. The GC-WIFI300-SMT-01 is a fully self-contained Wi-Fi solution for a
variety of applications. Marvell Software SDK provides most of the software functions you will need to
build your complete application all on this module.
The GC-WIFI-SMT-01 has 8M bytes of Flash storage that can be used with the special 88MW300
execute from Flash feature. This feature allows for many different software options like HomeKit,
Weave, Alexa support, and others.
GC-WIFI300-SMT-01 supports AP+STA wireless networking and Wi-Fi Direct mode. The GC-WI-
FI300-SMT-01 also provides wireless and remote firmware upgrades for all kinds of application re-
quirements. GC-WIFI300-SMT-01 supports a wakeup-on-wireless feature, which makes it a very
suitable solution for battery applications requiring low power save performance. The voltage for the I/O
can be altered to 1.8V, 2.5V, or 3.3V.
The GC-WIFI300-SMT-01 employs the world’s lowest power embedded architecture. It has been
optimized for all kinds of applications, such as in-home automation, smart grid, handheld devices,
personal medical applications, industrial controls, and applications that have lower data rates and
transmit or receive data on an infrequent basis.
The GC-WIFI300-SMT-01 is available in a low-profile, 23.1x32.8x 2.7mm SMT module package that
can be easily mounted on a PCB with application specific circuits. Also, this module provides the
option to use either the built-in, on-board antenna or the external antenna that can be accessed using
the U.FL connector.
Device Features
• 8M byte serial Flash
• Wi-Fi @ 2.4 GHz with support for WEP security
mode as well as WPA/WPA2
• Fully self-contained serial-to-wireless functionality.
• Supports IEEE802.11b/g/n Wireless Standards
• Ultra-Low-Power for Battery Applications with Low
Power Mode
• Supports UART/SPI/PWM/ADC/GPIO Data
Communication Interface
• Supports Work As STA/AP/AP+STA/Wi-Fi Direct
Mode
• Supports Smart Link Function (APP for smart
configuration)
• Supports Wireless (OTA) and Remote Firmware
Upgrade Function
• Supports Wakeup-on-Wireless and Local Wakeup
• Supports TLS/SSL and mDNS Protocol
• Single +3.3V Power Supply
• Supports 1.8V, 2.5V, 3.3V I/O voltages
• 23.1mm x 32.8mm x2.7mm Size
• Built-in on-board antenna
• Option to use external antenna using the U.FL connector
• FCC/CE Certified

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
5
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
Device Parameters
Wireless Standard 802.11 b/g/n
Transmit Power
Operating Current
802.11b: +16 +/-2dBm (@11Mbps)
Deep Sleep: <100uA
Peak [Continuous TX]: ~240mA
802.11g: +14 +/-2dBm (@54Mbps)
Normal [WiFi ON/OFF, DTIM=100ms]:
802.11n: +13 +/-2dBm (@HT20, MCS7)
AP Associate: ~21mA; No-AP Associate:~26mA
802.11n: +12 +/-2dBm (@HT40, MCS7)
Wakeup-on-Wireless Mode: ~10mA;
Antenna Option External:I-PEX Connector
Internal:On-board PCB antenna
Certification
Operating Voltage
Operating Temp.
Security Mechanisms
Update Firmware
Encryption
Network Protocol
Network Type
Dimensions and Size
Storage Temp.
FCC/CE
2.97-3.63V
-30˚C - +85˚C
WEP/WPA-PSK/WPA2-PSK
Local Wireless (OTA), Remote
WEP64/WEP128/TKIP/AES
IPv4,TCP/UDP/FTP/HTTP,FTTPS,TLS,mDNS
STA /AP/STA+AP/Wi-Fi Direct
23.1mm×32.8mm×2.7mm
-45˚C - +125˚C
Frequency Range 2.412GHz-2.484GHz
Receiver Sensitivity
Data Interface
802.11b: -93 dBm (@11Mbps ,CCK)
UART
802.11g: -85 dBm (@54Mbps, OFDM)
SPI, PWM, GPIO, ADC
802.11n: -82 dBm (@HT20, MCS7)
ItemClass Parameters
Wireless
Paramaters
Hardware
Parameters
Software
Paramaters
Key Application
• Remote equipment monitoring
• Smart Home/Energy
• Industrial sensors and controls
• Home automation
• Medical/Healthcare devices
Table 1. GC-WIFI300-SMT Module Technical Specifications

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
6
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
Hardware Introduction
Pins Definition
Figure 1. GC-WIFI300-SMT Pins Map
Table 2. GC-WIFI300-SMT Pins Definition
Ground GND Power
JTAG Function JTAG_TCK I, PU JTAG/Debug functional
pin, N/C if not is use
JTAG Function JTAG TDO 0
JTAG Function JTAG TDI I,PU
JTAG Function JTAG TMS I,PU
JTAG Function JTAG nTRST I,PU
GPIO WAKEUP0 I/O GPIO7, N/C if not is use.
GPIO WAKEUP1 I/O GPIO8, N/C if not is use.
+3.3V Power DVDD Power
1,17,31,48
2
3
5
6
8
7
7
4
DescriptionPin Net Name Signal Type Comments
GC-WIFI300-SMT

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
7
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
GPIO BOOT0 I/O
A/D Input 1 ADC1 I/O
A/D Input 2 ADC2 I/O
GPIO RTC_XIN I/O
GPIO RTC_XOUT I/O
GPIO BOOT1 I/O
N.C N/C
N/C
N/C
N/C
N/C
GPIO14, N/C if not is use.
GPIO12, N/C if not is use.
GPIO
GPIO
SPI Interface
GPIO
UART0
Module Reset
SPI Data Out
GPIO
I2C Interface
GPIO
UART0
UART1_TXD
UART1_TXD
SPI_CLK
GPIO24
N.C
UART0_TX
EXT_RESETn
N.C
SPI_MOSI
N.C
nReload
I2C_SDA
N.C
nLink
UART0_RX
I/O
I/O
I/O
I/O
0
I,PU
0
I/O, PU
I/O
I/O
I
GPIO18, N/C if not is use.
GPIO15, N/C if not is use.
GPIO13, N/C if not is use.
GPIO11, N/C if not is use.
GPIO, N/C if not is use.
GPIO20, N/C if not is use.
GPIO28, N/C if not is use.
GPIO24, N/C if not is use.
N/C
UART Communication Pin
UART Pin (Or RS485 Control)
“Low” effective reset input.
GPIO30, N/C if not is use.
GPIO29, N/C if not is use.
N/C
GPIO45, N/C if not is use.
GPIO44, N/C if not is use.
GPIO43, N/C if not is use.
No connect
GPIO26, N/C if not is use.
GPIO27, N/C if not is use.
GPIO25, N/C if not is use.
N/C
N/C
N/C
UART Communication Pin
UART Communication Pin
SPI Interface
I2C Interface
+3.3V Power
UART0
+3.3V Power
SPI Data In
GPIO
UART0
N.C
N.C
SPI_CS
I2C_SCL
DVDD
UART0_RTS
N.C
DVDD
N.C
N.C
SPI_MISO
N.C
nReady
UART0_CTS
I/O
I/O
Power
I/O
Power
I
I/O
I/O
10
11
12
14
15
19
27
23
31
37
45
21
29
35
43
25
33
41
39
47
16
18
20
28
24
38
46
22
30
36
44
26
34
42
40
13

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
8
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
-45
IPC/JEDEC J-STD-020
TAMB=25˚C
0
0
TAMB=25˚C 2 KV
3.8 V
3.3 V
260
500
125 ˚C
˚C
V
Storage temperature range
Maximum soldering temperature
ESD (Charged Device Model, CDM)
Supply voltage
ESD (Human Body Model HBM)
Voltage on any I/O pin
ConditionParameter UnitMin. Typ. Max.
2.97 3.3
Continuous Tx 200
DTIM=100ms 21
VDD*70%
10
0
-.04
VDD On
10
0
VDD*30%
50
3
V
uA
V
5
mA
pF
VDD+0.4
50
V
uA
250
2
3
3.63 V
mA
uA
V
Operating Supply Voltage
Supply current, peak
Input leakage current
Analog input range
Supply current, IEEE PS
Input capacitance
Input low voltage
Pulldowm strength
Analog output range
Input high voltage
Pullup strength
ConditionParameter UnitMin. Typ. Max.
Electrical Characteristics
Mechanical Size
Absolute Maximum Ratings:
GC-WIFI300-SMT module physical size
(Unit:mm) as follows:
Power Supply & Power Consumption:
Figure 2. GC-WIFI300-SMT Mechanical Dimensions

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
9
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
Figure 3. GC-WIFI300-SMT PCB Symbol Size
Figure 4. Suggested Module Placement
GC-WIFI300-SMT Module PCB symbol size
(mm) as follows:
On-board Chip Antenna
The GC-WIFI300-SMT module provides an internal on-board chip antenna option. When selecting an
internal antenna, you shall comply with following antenna design rules and module location sugges-
tions:
• For PCB mounting, do not place components or GND plane in the RED area (8.3 x 18.4 mm);
• The antenna must be mounted away from any metal or other components by at least 10mm;
• The antenna can’t be shielded by any metal enclosure; All shields including plastic, shall be
mounted away from the antenna by at least 10mm;
Grid Connect recommends that the GC-WIFI300-SMT module be located as suggested in Figure 4 to
reduce interference with the antenna and wireless signal. Please contact Grid Connect to assist with
your initial development.

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
10
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
Ordering Information
Recommended Reflow Profile
The GC-WIFI300-SMT series module provides several ordering options:
Figure 5. GC-WIFI300-SMT Ordering Information
Figure 6. Reflow Soldering Profile
Table 11. Reflow Soldering Parameters
PACKAGE INFORMATION
Time of above 220 35~55 sec
Peak-Temp
Reflow Time
260 max
1
2
ItemNO. Temperature(Degree) Time
Note:
1. Recommend to supply N2 for reflow oven.
2. N2 atmosphere during reflow (O2<300ppm)
GC-WIFI300-SMT-01
Product Number, WIFI300-SMT
Vendor Information: GC
Revision

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
11
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
Device Handling Instructions (Module IC SMT Preparation)
1. Shelf life in sealed bag: 12 months, at <30℃ and <60% relative humidity (RH)
2. After bag is opened, devices that will be re-baked after 168 hours.
3. Recommend to oven bake with N2 supplied
4. Recommend end to reflow oven with N2 supplied
5. Baked required with 24 hours at 125+-5℃ before rework process for two modules, one is new
module and two is board with module
6. Recommend to store at ℃10% RH with vacuum packing
7. If SMT process needs twice reflow:
(1) Top side SMT and reflow (2) Bottom side SMT and reflow
Case 1: Wi-Fi module mounted on top side. Need to bake when bottom side process over 168
hours window time, no need to bake within 168 hours
Case 2: Wi-Fi module mounted on bottom side, follow normal bake rule before process
Note: Window time means from last bake end to next reflow start after 168 hours

1630 W. Diehl Road, Naperville, IL 60563 Phone: [phone] USA Toll Free: [phone] gridconnect.com
12
GC-WIFI300-SMT Low Power Wi-Fi Module User Manual
GND IIC0_SCL 7 GPIO_5
JTAG_TCK
BOOT0 DVDD
IIC0_SDA9
30
6GPIO_7
GPIO_16
GPIO_4
JTAG_TDO
ADC1 N.C
SSP1_RXD8
62
61GPIO_6
GPIO_46
GPIO_45
JTAG_TDI
ADC2 N.C
UART1_TXD UART0_CTS
SSP1_CLK11
63
64 1
58GPIO_9
GPIO_47
GPIO_48 GPIO_0
GPIO_42
JTAG_TMS
RTC_XIN N.C
N.C nLink
SSP1_FRM10
39
52
59GPIO_8
GPIO_25
GPIO_39
GPIO_43
JTAG_nTRST
RTC_XOUT N.C
UART_RXD nReady
GPIO24 GND
SSP1_TXD12
40
65 55
38
60GPIO_10
GPIO_26
GPIO_49 GPIO_40
GPIO_24
GPIO_44
WAKEUP0
BOOT1 UART0_TX
N.C nReload
DVDD36
51 3
56
GPIO_22
GPIO_27 GPIO_2
GPIO_41
WAKEUP1
N.C UART0_RTS
N.C N.C
GND37
2
GPIO_23
GPIO_1
DVDD
GND UART0_RX
N.C S_RST#
N.C
4
35
GPIO_3
RESETN
1 25
2
10 34
26
3
11 35
27
5
13 37
19 43
29
6
14 38
20 44
24 48
30
8
16 40
22 46
32
7
15 39
21 45
31
9
17 41
23 47
33
4
12 36
18 42
28
Net Name
GC-WIFI300-SMT GC-WIFI300-SMT88MW300 88MW300
Net NamePin PinPin PinPin Name Pin Name
APPENDIX A: 88MW300 PIN MAPING
GC-WIFI300-SMT VS 88MW300 Pins Map