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SKY6651C是一颗满足车规级AEC Q100(grade2)可靠性标准，针对国标GB/T20851-2019 ETC(电子不停车收费系统)应用的低功耗，高性能5.8GHz短程通信SOC芯片。可应用于单片式/双片式车载OBU，高速公路CPC卡片。芯片集成超低功耗5.8GHz射频唤醒，射频收发系统，32bit CPU核心，以及256Kbytes片上集成flash存储器。同时集成FlexCAN控制器等丰富的硬件资源。
l Standards
n GB/T20851-2019 compatible
n AEC-Q100 grade 2 (-400C to +1050C)
l CPU Core: ARM Cortex M0 (32-bit CPU)
n From 500KHz up to 45MHz max
n 0.95DMIPS/MHz
n 0.5KB high speed cache
l 5.8GHz DSRC processor
n GB/T20851.2-2019 compatible
n 3.5μA RF wakeup@-50dBm
n 5.5μA IF wakeup@20μV, -63dBm
n 10μA period wakeup@-85dBm@2s
n -80dBm RX sensitivity
n 6dBm max TX power
n Support TX PN9 and 14KHz square wave
l Ultra-low-power
n 2.0V to 3.6V power supply
n 0.23μA @ Power down mode with 20.8μs wakeup time from flash
n 0.83μA @ Deep sleep mode (all SRAM retention) with 11.9μs wakeup time from flash
l Clock sources
n 45MHz max RC oscillator
n 16.384/32.768MHz XTAL for DSRC
n 32KHz Crystal oscillator or RC oscillator for WDT or RTC
n 40MHz clock for FlexCAN controller
l Debug support
n Serial wire debug (SWD) support
l Memories
n Up to 256KB Flash memory
n 32KB SRAM
n 128B always-on register bank
l Peripherals
n Up to 32 GPIOs for QFN48L
n 1 FlexCAN controller support CAN2.0B and CAN FD
n 2 hardware UARTs
n 2 hardware USARTs(UART&ISO7816-3 comb) with VCC support (up to 10mA)
n 3 SPI (Master and Slave)
n 4 Timers (2 32-bit and 2 16-bit)
n 1 24-bit SysTick Timer
n 1 WDT
n 1 RTC
n 1 PWM
l Security co-processor
n DES/3DES
n SM4
l Wakeup
n 13 IO wakeup sources for QFN48L
n Up to 3 internal wakeup sources
u DSRC wakeup
u WDT
u RTC wakeup
l Auxiliary Functions
n CRC16
n TRNG
n 10 bits SAR ADC@ 100KSPS (4 ex CH, VDD, VBAT and Temperature Sensor)
n Internal LDOs
l Package
n QFN48L (6x6x0.75-e0.40)
l ETC CPC/OBU,
l RFID,
l 远程无线控制系统,
l 物联网智能终端
