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Silicon Labs

Capacitive Touch Sense MCUs » C8051F990-GM

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C8051F990-GM Available Directly From Manufacturer QUOTE
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
Capacitive Sense Interface (F99x)
    - Supports buttons, sliders, wheels, and capacitive proximity sensing
    - Fast 40 µs per channel conversion time
    - 16-bit resolution, up to 14 input channels
    - Auto scan and wake-on-touch
    - Auto-accumulate up to 64x samples
Analog Comparator
    - Programmable hysteresis and response time
    - Configurable as wake-up or reset source
6-Bit Programmable Current Reference
    - Up to ±500 µA, can be used as a bias or for generating a custom reference voltage
    - PWM enhanced resolution mode
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
    - 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 strengthHardware 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
On-Chip Debug
    - On-chip debug circuitry facilitates full-speed, non-intrusive in-system debug (no emulator required)
    - Provides breakpoints, single stepping
    - Inspect/modify memory and registers
    - Complete development kit
    - 20-pin QFN (3 x 3 mm)
    - 24-pin QFN (4 x 4 mm)
    - 24-pin QSOP (easy to hand-solder)
Temperature Range: –40 to +85 °C

Data Sheet