蓝牙5.2 SoC芯片
CMT4552 is a System on Chip (SoC) for Bluetooth 5.2 applications. It has high-performance low-power 32-bit processer with 64K retention SRAM, 512/256KB flash, 96KB ROM, 256bit efuse, and an ultra-low power, high performance, multi-mode radio. Also, CMT4552 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.
Key Features
● High-performance low-power 32-bit processor
● Memory
512/256KB SPI NOR flash memory
64KB SRAM, all programmable retention in sleep mode
4-way instruction cache with 8KB Cache RAM
96KB ROM
256bit efuse
● 19 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
● 5-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
Battery monitor
● Power consumption
0.3uA @ OFF Mode (IO wake up only)
1uA @ Sleep Mode with 32KHz RTC
13uA @ Sleep Mode with 32KHz RTC and all SRAM retention
Receive mode: 8mA @3.3V power supply
Transmit mode: 8.6mA (0dBm output power) @3.3V power supply
MCU: <90uA/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)
● BLE 5.2 feature
● 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
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 ℃~85℃
● RoHS Package: SSOP24
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)