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C8051F981

Silicon Laboratories
Part Number C8051F981
Manufacturer Silicon Laboratories
Description Capacitive Sensing MCU
Published Dec 9, 2010
Detailed Description C8051F99x-C8051F98x Ultra Low Power, 8-2 kB Flash, Capacitive Sensing MCU Ultra Low Power Consumption - 150 µA/MHz in ac...
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C8051F981
C8051F981

Overview
C8051F99x-C8051F98x Ultra Low Power, 8-2 kB Flash, Capacitive Sensing MCU Ultra Low Power Consumption - 150 µA/MHz in active mode (24.
5 MHz clock) - 2 µs wakeup time - 10 nA sleep mode with memory retention - 50 nA sleep mode with brownout detector - 300 nA sleep mode with LFO - 600 nA sleep mode with external crystal Supply Voltage 1.
8 to 3.
6 V - Built-in LDO regulator allows a high analog supply voltage and low digital core voltage - 2 built-in supply monitors (brownout detector) for sleep mode and active modes 12-Bit or 10-Bit Analog to Digital Converter - ±1 LSB INL (10-bit mode); ±1.
5 LSB INL  (12-bit mode) no missing codes - Programmable throughput up to 300 ksps  (10-bit mode) or 75 ksps (12-bit mode) - Up to 10 external inputs - On-chip voltage reference; 0.
5x gain allows measuring voltages up to twice the reference voltage - 16-bit auto-averaging accumulator with burst mode provides increased ADC resolution - Data dependent windowed interrupt generator - Built-in temperature sensor High-Speed 8051 µC Core - Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks - Up to 25 MIPS throughput with 25 MHz clock - Expanded interrupt handler Memory - 512 bytes RAM - 8 kB (F990/1/6/7, F980/1/6/7), 4 kB (F982/3/8/9), or 2 kB (F985) Flash; in-system programmable Digital Peripherals - Up to 17 port I/O; high sink current and - programmable drive strength Hardware SMBus™/I2C™, SPI™, and UART serial ports available concurrently Four general purpose 16-bit counter/timers Programmable 16-bit counter/timer array with three capture/compare modules and watchdog timer Clock Sources - Internal oscillators: 24.
5 MHz, 2% accuracy supports UART operation; 20 MHz low power oscillator requires very little bias current.
External oscillator: Crystal, RC, C, or CMOS Clock SmaRTClock oscillator: 32 kHz Crystal or internal Can switch between clock sources on-the-fly; useful in implementing various power saving modes Capacitive Sense Interface (...


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