Users Manual

RF-BM-2642B1
www.szrfstar.com V1.0 - Jan., 2020
Shenzhen RF-star Technology Co., Ltd. Page 3 of 20
1 Device Overview
1.1 Description
RF-BM-2642B1 is an RF module based on TI lower-power CC2642R SoC. It integrates a 48 MHz crystal and a 32.768
kHz crystal, 352 KB of in-system Programmable Flash, 256 KB ROM, 8 KB of cache SRAM, 80 KB of ultra-low leakage
SRAM. Its ARM
®
Cortex
®
-M4F core application processor can operate at an extremely low current at flexible power
modes. Its 2.4 GHz RF transceiver compatible with Bluetooth 5 Low Energy. It features small size, robust connection
distance, and rigid reliability.
1.2 Key Features
• RF Section
- 2.4GHz RF transceiver compatible with Bluetooth 5
Low Energy
- Excellent receiver sensitivity
 -105 dBm for BLE 125 kbps (LE coded PHY)
 -97 dBm for 1 Mbps PHY
- Output power up to +5 dBm with temperature
compensation
- Suitable for systems targeting compliance with
worldwide radio frequency regulations
• Microcontroller
- Powerful 48 MHz ARM
®
Cortex
®
-M4F processor
- EEBMC 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
- Support OTA upgrade
• Ultra-low power sensor controller with 4 KB of
SRAM
- Sample, store, and process sensor data
- Operation independent from system CPU
- Fast wake-up for low-power operation
• Peripherals
- Digital peripheral pins can be routed to 31
GPIOs
- 4 × 32-bit or 8 × 16-bit general-purpose timers
- 12-bit ADC, 200 ksamples/s, 8 channels
- 2 × comparators with internal reference DAC
- Ultra-low power analog comparator
- Programmable current source
- 2 × UART
- 2 × SSI (SPI, Microwave, TI)
- I
2
C
- I
2
S
- Real-time clock (RTC)
- AES 128 and 256 bit Crypto accelerator
- ECC and RSA public key hardware accelerator
- SHA2 accelerator (full suite up to SHA-512)
- True random number generator (TRNG)
- Capacitive sensing, up to 8 channels
- Integrated temperature and battery monitor
• External system
- On-chip buck DC/DC converter
• Low Power
- Wide supply voltage range: 1.8 V ~ 3.8 V
- Active-mode RX: 6.9 mA
- Active-mode TX at 0 dBm: 7.3 mA
- Active-mode TX at +5 dBm: 9.6 mA
- Active-mode MCU 48 MHz (CoreMark): 3.4 mA (71
μA/MHz)
- Sensor controller, low power-mode, 2 MHz, running
infinite loop: 30.8 μA
- Sensor controller, active-mode, 24 MHz, running
infinite loop: 808 μA