automotive copyright ? 2008 by silicon laboratories 11.20.2008 digital peripherals uart0 timers 0, 1, 2 3 channel pca/wdt priority crossbar decoder p0.0 p0.1 p0.2 p0.3 p0.4 p0.5 p0.6/c2d p0.7/xtal1 crossbar control port i/o configuration sfr bus p1.0/xtal2 p1.1 p1.2 p1.3 p1.4 p1.5 spi debug / programming hardware power on reset reset c2d c2ck/rst p1.6 p1.7 analog peripherals comparator + - 12-bit 200ksps adc a m u x temp sensor vref vdd vdd vref gnd cp0, cp0a voltage reference vref system clock setup external oscillator internal oscillator (0.5%) xtal1 cip-51 8051 controller core (25 mhz) 8 kb flash program memory 256 byte sram port 0 drivers port 1 drivers voltage regulator (ldo) gnd vregin vdd xtal2 vregin C8051F531A 25 mips, 8 kb flash, 12-bit adc, 20-pin automotive mcu analog peripherals 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 - programmable gain maximizes input signal span built-in temperature sensor (3 c) programmable comparator precision internal voltage reference v dd monitor/brown-out detector on-chip debug - on-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required) - provides breakpoints, single stepping, watch-points - inspect/modify memory, registers, and stack - superior performance to emulation systems using ice-chips, target pods, and sockets temperature range: ?40 to +125 c operating voltage: 1.8 to 5.25 v - multiple power saving sleep and shutdown modes development kit: c8051f530adk high-speed 8051 c core - pipelined instruction architecture; executes 70% of instructions in one or two system clocks - up to 25 mips throughput memory - 8 kb flash; in-system programmable; flexible security features - 256 bytes data ram digital peripherals - 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 - internal programmable 0.5% oscillator: up to 25 mhz - external oscillator: crystal, rc, c, or cmos clock ordering part numbers - C8051F531A-it, 20-pin tssop (rohs-compliant), 6 x 6 mm 2 - C8051F531A-im, 20-pin qfn (rohs-compliant), 4 x 4 mm 2
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