Si1021 Datasheet | Silicon Labs

Si102x/3x Ultra Low Power, 64/32 k B, 10-Bit ADC MCU with Integrated 240- 960 MHz EZRadio PRO® Transceiver Ultra Low Power at 3.6V - 130 µA/MHz IBAT; dc-dc enabled - 110 n A sleep current with data retention; POR monitor enabled - 400 n A sleep current with sma RTClock (internal LFO) - 700 n A sleep current with sma RTClock (external XTAL) - 2 µs wake-up from any sleep mode 12-Bit; 16 Ch. Analog-to-Digital Converter - Up to 75 ksps 12-bit mode or 300 ksps 10-bit mode - External pin or internal VREF (no external capacitor required) - On-chip PGA allows measuring voltages up to twice the reference voltage - Autonomous burst mode with 16-bit automatic averaging  accumulator - Integrated temperature sensor Two Low Current parators - Programmable hysteresis and response time - Configurable as interrupt or reset source Internal 6-Bit Current Reference - Up to ±500 µA; source and sink capability - Enhanced resolution via PWM interpolation Integrated LCD Controller (Si102x Only) - Supports up to 128 segments (32x4) - Integrated charge pump for contrast control Metering-Specific Peripherals - DC-DC buck converter allows dynamic voltage scaling for  maximum efficiency (250 m W output) - Sleep-mode pulse accumulator with programmable switch  de-bounce and pull-up control interfaces directly to metering sensor - Dedicated Packet Processing Engine (DPPE) includes hardware AES, DMA, CRC, and encoding blocks for acceleration of wireless protocols - Manchester and 3 out of 6 encoder hardware for power efficient implementation of the wireless M-bus specification EZRadio PRO® Transceiver - Frequency range = 240- 960 MHz - Sensitivity = - 121 d Bm - FSK, GFSK, and OOK modulation - Max output power = +20 d Bm or +13 d Bm - RF power consumption 18.5 m A receive 18 m A @ +1 d Bm transmit 30 m A @ +13 d Bm transmit 85 m A @ +20 d Bm transmit Data rate = 0.123 to 256 kbps Auto-frequency calibration (AFC) Antenna diversity and transmit/receive switch control Programmable packet handler TX and RX 64-byte...