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CMT2380F32W

Ultra Low Power Sub-1GHz Wireless MCU

CMT2380F2.png


1. Descriptions of RF Transceiver IC CMT2380F32W:


Employed a 32-bit Cortex-M0+ CPU core and an ultra-low power RF transceiver, the CMT2380F32W is a FSK, GFSK, MSK, GMSK and OOK wireless MCU with high performance and ultra-low power applying to 127 to 1020 MHz band wireless applications. Operating with 1.8 to 3.6 V supply voltage, the CMT2380F32W consumes only 72 mA current while delivering up to 20 dBm power. 


2. Features of RF Transceiver IC CMT2380F32W:


MCU Features



  • 32 MHz Cortex-M0+ 32-bit CPU platform

  • 32 kB Flash with erasing protection

  • 4 kB RAM with parity to enhance system stability

  • 16 general purpose I/O interfaces available

  • Flexible power management system

* 0.5 uA @ 3 V(deep sleep mode): the power consumption when all clocks are off, power-on reset is active, I/O state is maintained, I/O interrupt is active and all registers, RAM, and

CPU stay in data storage status

* 0.8 uA @ 3 V (deep sleep mode): the power consumption when RTCs work

150 uA/MHz @3 V @16 MHz: the power consumption when CPU and peripheral modules

run with program Flash operating internally

2 us: the chip's wakeup time from ultra-low power mode, the fast response enables mode switching more flexible and efficient


  • RTC and crystal

External high speed crystal: 4 – 32 MHz

External low speed crystal: 32.768 kHz

Internal high speed clock: 4/8/16/22 and 24 MHz

Internal low speed clock: 32.8/38.4 kHz


  • Timer and counter

3 general purpose 16-bit timers/counters

A 16-bit timer/counter available in low power mode

3 high performance 16-bit timers/counters capable for capture/compare and PWM output

One 20-bit programmable counter/watchdog circuit with built-in dedicated ultra-low power

RC-OSC to perform WDT counting 


  • Communication interface

UART 0 and UART 1 standard communication interface

One ultra-low power UART(LPUART) supporting for low speed clock

Standard I2C and SPI communication interface


  • One 12-bit 1 Msps SAR ADC

  • 2 voltage comparators

  • Low voltage detector (LVD), configurable 16-level comparison level, support for port voltage and supply voltage monitoring


RF Features


  • Frequency range: 127 – 1020 MHz

  • Modem: FSK, GFSK, MSK, GMSK and OOK

  • Data rate:0.5 – 300 kbps

  • Sensitivity: -121 dBm @ 434 MHz, FSK

  • Receiving current: 8.5 mA @ 434 MHz, FSK

  • Transmitting current: 72 mA @ 20 dBm, 434 MHz

  • Configurable up to 64-byte FIFO


System Features


  • Supply voltage:1.8 – 3.6 V

  • Operating temperature: -40 – 85 ℃

  • QFN40 5x5 packaging


3. Applications of RF Transceiver IC CMT2380F32W:


  • Smart grid and automatic meter reading

  • Home security and building automation

  • Wireless sensor networks and industrial monitoring

  • ISM band data communication



Design documents and resources
DEMO & Tools:
CMT2380F32_SampleCode
2019-06-28
CMT2380F32_TRxDemo
2019-06-25
CMT2380F32_template
2019-06-25
CMOSTEK RFPDK_V1.50
2019-07-17
CMT2380F32 WriterConfig V1.0.1
2019-07-24
Design Guides:
AN221-CMT2380F32_Development_Environment_EN
2019-03-28
AN220-CMT2380F32 User Guide (Controller Part)-EN
2019-03-01
Certification & Test Reports:
RF IC REACH Report-20190423
2019-05-20
RF IC ROHS2.0 Report-20190419
2019-05-20
Associated products
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