General Description:

CMT4502 is a System on Chip (SoC) for Bluetooth® low energy applications. CMT4502 has 32-bit ARM® Cortex™-M0 CPU with 138K SRAM/Retention SRAM and an ultra-low power, high performance, multimode radio. CMT4502 can support BLE with security, application and over-the-air download update. Serial peripheral IO and integrated application IP enables customer product to be built with minimum bill-of-material (BOM) cost

CMT4502 support BLE 5.0 High speed throuthput including BLE 2Mbps protocal and data lenth extention. Support Sig-Mesh multi-feature: Friend / LowPower / Proxy / Relay Node.

Key Features:

• ARM® Cortex™-M0 32-bit processor

• Memory

              * 512KB in-system flash memory

              * 128KB ROM

              *  138KB SRAM, all programmable retention in sleep mode

              * 8-channel DMA

• 33/19 general purpose I/O pins

* All pins can be configured as serial interface and programmable IO MUX function          mapping

* All pins can be configured for wake-up

* 18 pins for triggering interrupt

* 3 quadrature decoder(QDEC)

*  6-channel PWM

*  4-channel I2S

* 2-channel PDM

*  2-channel I2C

* 2-channel SPI

*  1-channel UART

*  JTAG

• 8-channel 12bit ADC with analog PGA

• 4-channel 24bit timer, one watchdog timer

• Real timer counter (RTC)

• Power, clock, reset controller

• Flexible power management

*Supply voltage range 1.8V to 3.6V

*Embedded buck DC-DC

*Embedded LDOs

*Battery monitor: Supports low battery detection

*2μA @ Sleep Mode with 32KHz RTC

*0.7μA @ OFF Mode(IO wake up only)