C8051F970-A-GM Datasheet, PDF (1/454 Pages) Silicon Laboratories – Low Power Capacitive Sensing MCU with up to 32 kB of Flash

C8051F97x
Low Power Capacitive Sensing MCU with up to 32 kB of Flash
Low Power Consumption
- 200 µA/MHz in active mode (24.5 MHz clock)
- 2 µs wakeup time
- 55 nA sleep mode with brownout detector
- 280 nA sleep mode with LFO
- 600 nA sleep mode with external crystal
Capacitance Sense Interface
- Supports buttons, sliders, wheels, and proximity sensing
- Fast 40 µs per channel conversion time
- 16-bit resolution, up to 43 input channels
- Auto scan and wake-on-touch
- Auto-accumulate up to 64x samples
10-Bit Analog-to-Digital Converter
- Up to 43 external pin input channels, up to 300 ksps
- Internal VREF or external VREF supported
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 LFO
- Can switch between clock sources on-the-fly; useful in imple-
menting 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
Unique Identifier
- 128-bit unique key for each device
High-Speed CIP-51 µC Core
- Efficient, pipelined instruction architecture
- Up to 25 MIPS throughput with 25 MHz clock
- Uses standard 8051 instruction set
- Expanded interrupt handler
- 1-cycle 16 x 16 MAC Engine
- 7-channel Direct Memory Access (DMA) module
Memory
- Up to 32 kB flash
- Flash is in-system programmable in 512-Byte sectors
- Up to 8 kB RAM
General-Purpose I/O
- Up to 43 pins with high sink current and programmable drive
- Crossbar-enabled
Timer/Counters and PWM
- 4 general purpose 16-bit timer/counters
- 16-bit Programmable Counter Array (PCA) with three channels
of PWM, capture/compare, or frequency output capability, and
watchdog timer
Supply Voltage: 1.8 to 3.6 V
- Built-in LDO regulator allows a high analog supply voltage and
low digital core voltage
- 2 supply monitors (brownout detector) for sleep and active
modes
Package Options
- 24-pin QFN (4x4 mm)
- 32-pin QFN (5x5 mm)
- 48-pin QFN (6x6 mm)
Temperature Ranges: –40 to +85 °C
Core / Memory / Support
16-32 kB Flash
4-8 kB RAM
CIP-51
(25 MHz)
Core LDO
Supply Monitor
16-bit CRC
7 ch. DMA 16 x 16 MAC
C2 Serial Debug / Programming
Digital Peripherals
UART
I2C / SMBus HS I2C Slave
SPI
4 x 16-bit Timers
3-Channel PCA / Watchdog
Clocking / Oscillators
24.5 MHz Precision Oscillator
20 MHz Low Power Oscillator
smaRTClock with 16.4 kHz LFO
External Oscillator
Analog Peripherals
SAR ADC (10-bit 300 ksps)
Capacitive Sensing
Voltage Reference
Temperature Sensor
Rev 1.0 5/14
Copyright © 2014 by Silicon Laboratories
C8051F97x