C8051F531A 25 MIPS, 8 kB Flash, 12-Bit ADC, 20-Pin Automotive MCU Analog Peripherals High-Speed 8051 µC Core - 12-Bit ADC, 5 V input signal; up to 16 external inputs - ±1 LSB INL; guaranteed monotonic Programmable throughput up to 200 ksps - Data-dependent windowed interrupt generator Memory - Programmable gain maximizes input signal span Built-in Temperature Sensor (±3 °C) Programmable Comparator Precision Internal Voltage Reference VDD Monitor/Brown-out Detector - - On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required) Provides breakpoints, single stepping, watch-points 256 bytes data RAM Up to 16 digital I/O; all are 5 V push-pull SPI™ and UART serial ports available concurrently Programmable 16-bit counter array with three capture/compare modules Three general-purpose 16-bit counter/timers Clock Sources - Inspect/modify memory, registers, and stack Superior performance to emulation systems using ICE-chips, target pods, and sockets Internal programmable 0.5% oscillator: Up to 25 MHz External oscillator: Crystal, RC, C, or CMOS Clock Ordering Part Numbers - Temperature Range: –40 to +125 °C Operating Voltage: 1.8 to 5.25 V - 8 kB Flash; in-system programmable; flexible security features Digital Peripherals On-Chip Debug - Pipelined instruction architecture; executes 70% of instructions in one or two system clocks Up to 25 MIPS throughput C8051F531A-IT, 20-Pin TSSOP (RoHS-compliant), 6 x 6 mm2 C8051F531A-IM, 20-Pin QFN (RoHS-compliant), 4 x 4 mm2 Multiple power saving sleep and shutdown modes Development Kit: C8051F530ADK Power On Reset Reset C2CK/RST Port I/O Configuration CIP-51 8051 Controller Core (25 MHz) Debug / Programming Hardware Digital Peripherals 8 kB Flash Program Memory UART0 256 Byte SRAM Timers 0, 1, 2 C2D VREGIN Priority Crossbar Decoder 3 Channel PCA/WDT Port 0 Drivers P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6/C2D P0.7/XTAL1 Port 1 Drivers P1.0/XTAL2 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 SPI Voltage Regulator (LDO) SFR Bus VDD GND System Clock Setup XTAL1 XTAL2 VREGIN Crossbar Control Analog Peripherals Voltage Reference VDD VREF VREF External Oscillator Internal Oscillator (±0.5%) A M U X 12-bit 200ksps ADC VDD VREF Temp Sensor GND CP0, CP0A + - Comparator Automotive Copyright © 2008 by Silicon Laboratories 11.20.2008