Ultra-Low Power @ 3.6 V

   - 110 µA/MHz, Low-Power Active, DC-DC enabled

   - 110 nA sleep current with data retention; POR monitor enabled

   - 400 nA sleep current with smaRTClock (internal LFO)

   - 700 nA sleep current with smaRTClock (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 Comparators

   - 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

   - 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 mW output)

   - Sleep-mode pulse accumulator with programmable switch de-bounce and pull-up control interfaces directly to metering sensor

   - Data Packet Processing Engine (DPPE) includes hardware AES, DMA, CRC, and encoding blocks for acceleration of wire less protocols

   - Manchester and Three-out-of-Six encoder hardware for power efficient implementation of the wireless M-bus specification

  

High-Speed Enhanced 8051 µC Core

- Pipe-lined instruction architecture executes 70% of instructions in 1 or 2 system clocks

Memory

   - Up to 128 kB Flash; In-system programmable; Full read/write/ erase functionality over the entire supply range

   - Up to 8 kB data retention RAM

Digital Peripherals

   - Up to 57 port I/O; All 5 V tolerant with programmable drive strength

   - Hardware enhanced UART, 2 SPI and I2C serial ports available concurrently

   - Four general-purpose 16-bit counter/timers

   - 16-bit programmable counter array (PCA) with six capture/compare/PWM modules and watchdog timer

Clock Sources

   - Precision internal oscillators: 24.5 MHz with ±2% accuracy supports UART operation; spread-spectrum mode for reduced EMI

   - Low power internal oscillator: 20 MHz

   - External oscillator: Crystal, RC, C, CMOS clock

   - SmaRTClock oscillator: 32.768 kHz crystal or 16.4 kHz internal LFO with three independent alarms

On-Chip Debug

   - On-chip debug circuitry facilitates full speed, non-intrusive in system debug (no emulator required)

   - Provides four breakpoints, single stepping

Package Options

   - 76-pin DQFN (6x6 mm), RoHS compliant

   - 40-pin QFN (6x6 mm), RoHS compliant

   - 80-pin QFP (12x12 mm), RoHS compliant

Development Kit: C8051F960DK

Supply Voltage: 1.8 to 3.8 V

Temperature Range: –40 to +85 °C