CMT2180BW

Embedded with 8-bit RISC core, the CMT2180B is an OOK based transmitting wireless MCU with low power and low cost, applying to 312 – 480 MHz band wireless applications.Empowered by a 1 k x 14 b rewritable program space, a high-efficiency and ultra-low power transmitter, along with the supports of up to 5 general-purpose IOs, online debug, and ultra-low power sleep mode, the chip is ideal for a variety of consumer remote control applications. With an operating temperature range of – 40 ~ 85 ℃ and a power supply voltage of 2.0 ~ 3.6 V, it consumes only a current of 17.5 mA while delivering +13 dBm power at 433.92 MHz. The CMT2180B co-working with CMOSTEK’s NextGenRFTMseries receivers offers an ideal solution for ultra-low power RF applications.2. Features MCU Features1 k x 14 b rewritable program storage space (16 bytes/page)256 x 8 b data EEPROM (16 bytes/page)64 x 8 b SRAM8-layer hardware stack x 10 bitsSupport of online debuggingSupport of in-system programming (ICSP)Support of data EEPROM programming in application5 general purpose IOsOne Timer 0 with 8-bit prescalerOne Timer 2 with 8-bit prescalerWDT with 7-bit prescaler (the overflow frequency is about 16 – 2048 ms)Support of power up delay counter (PWRT)Support of low power mode SLEEP4 wake-up sources: INT, port change interrupt, WDT and write operation completionBuilt-in high speed 16 MHz RC oscillatorBuilt-in low speed 32 kHz RC oscillatorPort change interrupt: PA0 – PA5Program space protectionClock operating frequency (Fsys) up to 16 MHz2.0 – 3.6 V: Fsys being up to 8 MHz2.7 – 3.6 V: Fsys being up to 16 MHzRF FeaturesFrequency range: 312 – 480 MHzModulation mode: OOKData rate: 0.5 – 40.0 kbpsOutput power: + 13 dBmOperating current: 17.5 mA @ +13 dBm, 433.92 MHz with continuous 1 transmittingSystem FeaturesSupply voltage：2.0 ~ 3.6 VOperating temperature: -4 0 ~ + 85 ℃SOP14 packaging3. ApplicationWireless weather forecasting systemWireless lighting control systemConsumer remote control