Description:

CMT4522 is a System on Chip (SoC) for Bluetooth 5.2 / IEEE 802.15.4 applications. It has ARM® Cortex™- M0 32-bit processer with 64K retention SRAM, 128KB-8MB flash, 96KB ROM, 256bit efuse, and an ultralow power, high performance, multi-mode radio. Also, CMT4522 can support BLE / IEEE 802.15.4 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.

Features:

• ARM® Cortex™-M0 32-bit processor with SWD 

• Memory 

 128KB-8MB in-system flash memory 

 64KB SRAM, all programmable retention in sleep mode 

 4-way instruction cache with 8KB Cache RAM 

 96KB ROM 

 256bit efuse • 22 general purpose I/O pins 

 GPIO status retention in off/sleep mode 

 configurable as serial interface and programmable IO MUX function mapping 

 All pins can be configured for wake-up 

 All pins for triggering interrupt 

 3 quadrature decoder(QDEC) 

 6-channel PWM 

 2-channel PDM/I2C/SPI/UART 

 4-channel DMA

 • DMIC/AMIC with microphone bias 

• 8-channel 12bit ADC with low noise voice PGA 

• 6-channel 32bit timer, one watchdog timer 

• Real timer counter (RTC) 

• Power, clock, reset controller

• Flexible power management 

 Operating Voltage range 1.8V to 3.6V 

 Embedded buck DC-DC and LDOs 

 Battery monitor 

• Power consumption 

 0.3μA @ OFF Mode(IO wake up only) 

 1μA @ Sleep Mode with 32KHz RTC 

 13uA @ Sleep Mode with 32KHz RTC and all SRAM retention 

 Receive mode: 4mA @3.3V power supply 

 Transmit mode: 4.6mA(0dBm output power) @3.3V power supply  MCU: <60uA/MHz 

• RC oscillator hardware calibrations 

 Internal High/Low frequency RC osc 

 32KHz RC osc for RTC with +/-500ppm accuracy 

 32MHz RC osc for HCLK with 3% accuracy 

• High Speed Throughput  Support BLE 2Mbps Protocol 

 Support Data Length Extension 

 Throughput up to 1.6Mbps(DLE+2Mbps) 

• AoA/AoD Direction Finding 

• Support SIG-Mesh Multi-Feature 

 Friend Node  Low Power Node 

 Proxy Node  Relay Node 

• 2.4 GHz transceiver 

 Compliant to Bluetooth 5.2 

 Sensitivity: -99dBm@BLE 1Mbps data rate -105dBm@BLE 125Kbps data rate -103dBm@IEEE 802.15.4 250Kbps data rate 

 TX Power -20 to +10dBm in 3dB steps 

 Single-pin antenna: no RF matching or RX/TX switching required 

 RSSI (1dB resolution) 

 Antenna array and optional off-chip RF PA/LNA control interface • AES-128 encryption hardware • Link layer hardware 

 Automatic packet assembly 

 Automatic packet detection and validation 

 Auto Re-transmit 

 Auto ACK 

 Hardware Address Matching 

 Random number generator 

• Operating temperature:  -40˚C ~+85 ˚C (Consumer)  -40 ˚C ~+105 ˚C (Industrial) 

• RoHS Package: QFN32(4mm x 4mm) 

• Applications: wearables, beacons, home and building, health and medical, industrial and manufacturing, retail and payment, data transmission, PC/mobile/TV peripherals, internet of things (IoT)