RF-SM-1312B1
www.szrfstar.com V1.0 - Mar., 2021
Shenzhen RF-star Technology Co., Ltd. Page 2 of 17
1 Device Overview
1.1 Description
RF-SM-1312B1 is an RF module based on TI SimpleLinkTM ultra-low-power Sub-1 GHz wireless SoC CC1312R with 48
MHz ARM® Cortex®-M4F processor. It integrates a 48 MHz crystal, a balun, an antenna matching and a high-
performance spring antenna or wire-wound antenna. It features low power consumption, robust connection distance,
and rigid reliability. It supports IEEE 802.15.4g, IPv6-enabled smart objects (6LoWPAN), MIOYU®, Wi-SUN®, proprietary
and 862 MHz ~ 931 MHz ISM applications and can be preprogrammed with a serial interface communication protocol
for simple programming. 1.27-mm pitch stamp stick package for easy assembling and cost-effective PCB design.
1.2 Key Features
•RF Performance
- Flexible high-performance Sub-1 GHz RF
Transceiver
- Excellent receiver sensitivity using long-range
mode: -121 dBm
- Excellent receiver sensitivity at 50 kbps: -110
dBm
- Programmable output power with
temperature compensation: up to +14 dBm
- Differential RF interface
•Wireless protocols
- IEEE 802.15.4g, IPv6-enabled smart objects
- (6LoWPAN), MIOTY®, Wireless M-Bus, Wi-
SUN®, KNX RF, Amazon Sidewalk,
proprietary systems, SimpleLink ™ TI 15.4
stack
- (Sub-1 GHz), and dynamic multiprotocol
manager (DMM) driver.
•Microcontroller
- Powerful ARM® Cortex®-M4F processor, 48
MHz
- EEMBC CoreMark® Score: 148
- 352 KB of in-system programmable flash
- 256 KB of ROM for protocols and library
functions
- 8 KB of cache SRAM
- 80 KB of ultra-low leakage SRAM
- 2 pin cJTAG and JTAG debugging
- Supports Over-the-Air (OTA) update
- 2 KB of ultra-low-leakage SRAM for code and
data
•Low Power
- Wide supply voltage range: 1.8 V ~ 3.8 V
- Active mode RX: 5.8 mA (3.6 V, 868 MHz)
- Active mode TX at +14 dBm: 24.9 mA
- Active mode MCU 48 MHz running Coremark:
2.9 mA (60 μA/MHz)
- Standby: 0.85 μA (RTC running and 80 KB
RAM and CPU retention)
- Shutdown: 150 nA (wakeup on external
events)
•Peripheral
- All digital peripheral pins can be routed to any
GPIO
- 4× 32-bit or 8 × 16-bit general-purpose
timers
- 12-bit ADC, 200 kSamples/s, 8 channels
- 2× comparators with internal reference DAC
(1× continuous time, 1× ultra-low power)
- Programmable current source
- 2× UART
- 2× SSI (SPI, MICROWIRE, TI)
- I2C
- I2S
- Real-time clock (RTC)
- AES-128 security module
