
Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 2
3 Description.......................................................................2
4 Functional Block Diagram.............................................. 3
5 Revision History.............................................................. 5
6 Device Comparison......................................................... 6
7 Terminal Configuration and Functions..........................7
7.1 Pin Diagram................................................................ 7
7.2 Signal Descriptions – SIPA Package.......................... 8
7.3 Connections for Unused Pins and Modules................9
8 Specifications................................................................ 10
8.1 Absolute Maximum Ratings...................................... 10
8.2 ESD Ratings............................................................. 10
8.3 Recommended Operating Conditions.......................10
8.4 Power Supply and Modules...................................... 10
8.5 Power Consumption - Power Modes.........................11
8.6 Power Consumption - Radio Modes......................... 12
8.7 Nonvolatile (Flash) Memory Characteristics............. 12
8.8 Thermal Resistance Characteristics......................... 12
8.9 RF Frequency Bands................................................ 12
8.10 Antenna Characteristics..........................................13
8.11 Bluetooth Low Energy - Receive (RX).................... 14
8.12 Bluetooth Low Energy - Transmit (TX)....................17
8.13 Zigbee - IEEE 802.15.4-2006 2.4 GHz
(OQPSK DSSS1:8, 250 kbps) - RX.............................18
8.14 Zigbee - IEEE 802.15.4-2006 2.4 GHz
(OQPSK DSSS1:8, 250 kbps) - TX............................. 19
8.15 Timing and Switching Characteristics..................... 19
8.16 Peripheral Characteristics.......................................23
8.17 Typical Characteristics............................................ 31
9 Detailed Description......................................................38
9.1 Overview................................................................... 38
9.2 System CPU............................................................. 38
9.3 Radio (RF Core)........................................................39
9.4 Memory..................................................................... 40
9.5 Cryptography............................................................ 41
9.6 Timers....................................................................... 42
9.7 Serial Peripherals and I/O.........................................43
9.8 Battery and Temperature Monitor............................. 43
9.9 µDMA........................................................................43
9.10 Debug..................................................................... 43
9.11 Power Management................................................ 44
9.12 Clock Systems........................................................ 45
9.13 Network Processor..................................................45
9.14 Device Certification and Qualification..................... 46
9.15 Module Markings.....................................................49
9.16 End Product Labeling..............................................49
9.17 Manual Information to the End User....................... 50
10 Application, Implementation, and Layout................. 51
10.1 Typical Application Circuit....................................... 51
10.2 Alternate Application Circuit....................................53
10.3 Device Connections................................................ 55
10.4 PCB Layout Guidelines...........................................55
10.5 Reference Designs................................................. 61
10.6 Junction Temperature Calculation...........................62
11 Environmental Requirements and SMT
Specifications ...............................................................63
11.1 PCB Bending...........................................................63
11.2 Handling Environment.............................................63
11.3 Storage Condition................................................... 63
11.4 PCB Assembly Guide..............................................63
11.5 Baking Conditions................................................... 64
11.6 Soldering and Reflow Condition..............................65
12 Device and Documentation Support..........................66
12.1 Device Nomenclature..............................................66
12.2 Tools and Software................................................. 66
12.3 Documentation Support.......................................... 69
12.4 Support Resources................................................. 69
12.5 Trademarks............................................................. 69
12.6 Electrostatic Discharge Caution..............................70
12.7 Glossary..................................................................70
13 Mechanical, Packaging, and Orderable
Information.................................................................... 71
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (June 2022) to Revision B (August 2023) Page
• Added RER (UK) to module comparison table................................................................................................... 6
• Corrected pin diagram to properly represent Top View ......................................................................................7
• Added Section 8.10; Antenna Characteristics, to Section 8 ............................................................................ 10
• List of certifications updated to include RER (UK)............................................................................................46
• FCC ID corrected to ZAT-2651R3SIPA.............................................................................................................46
• Added Korea, Japan, and Taiwan certifications................................................................................................46
• Added MIC (Japan) certification section........................................................................................................... 47
• Added Korea certification section..................................................................................................................... 47
• Added NCC (Taiwan) certification section........................................................................................................ 48
• Module layout guidelines updated.................................................................................................................... 56
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CC2651R3SIPA
SWRS278B – FEBRUARY 2022 – REVISED AUGUST 2023
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