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CMT2189BW

240 - 960 MHz FLASH Based OOK Transmitting Wireless MCU

CMT2189BW.png

1. Description


Embedded with 8-bit RISC core, the CMT2189B is an OOK based transmitting wireless MCU with low power and low cost, applying to 240 - 960 MHz band wireless applications.

Empowered by a 2 k x 14 b rewritable program space, a high-efficiency and ultra-low power transmitter, along with the supports of up to 8 general-purpose IOs, online debug, and ultra-low power sleep mode, the chip is ideal for a variety of consumer remote control applications.


2. Features


MCU Features


  • PIC16 compatible instruction set

  • Up to 16 MHz clock operating frequency

  • 2T or 4T instruction cycle

  • 8-layer hardware stack x 11 bit

  • 2 k x 14 b rewritable program storage space (16 bytes/page)

  • 256 x 8 b data EEPROM (16 bytes/page)

  • 128 x 8 b SRAM

  • Support of online debug

  • Support of ICSP programming

  • Support of data EEPROM programming in application

  • 8 general IOs

  • One Timer 0 with 8-bit prescaler

  • One Timer 2 with 8-bit prescaler

  • WDT with 7-bit prescaler (the overflow frequency is about 16 - 2048 ms)

  • Support of power up delay counter PWRT

  • Support of low power mode SLEEP

  • Multiple wakeup sources: INT, port change interrupt, WDT, data EEPROM write operation completion, etc.

  • Built-in high speed 16 MHz RC oscillator

  • Built-in low speed 32 kHz RC oscillator

  • Port change interrupt: RA0 - RA7

  • Program space protection


RF Features


  • Frequency range: 240 - 960 MHz

  • Modulation mode: OOK

  • Data rate: 1.0 - 40.0 kbps

  • Output power: + 13 dBm

  • Operating current: 17.5 mA @+13dBm, 433.92 MHz with continuous 1 transmitting


System Features


  • Supply voltage:2.0 ~ 3.6 V

  • Operating temperature: -4 0 ~ + 85 ℃

  • SOP14 packaging


3. Applications


  • Wireless weather forecasting system

  • Wireless lighting control system

  • Consumer remote control



Design documents and resources
DEMO & Tools:
IDE2.0.6_CMT_Release
2019-05-21
CMTWrite V4.5_Release
2019-05-21
Design Guides:
AN201-CMT2189B User Guide-EN-V1.5-191105
2019-11-08
Certification & Test Reports:
RF IC REACH Report-20190423
2019-05-20
RF IC ROHS2.0 Report-20190419
2019-05-20
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