Precision Mixed Signal Copyright © 2009 by Silicon Laboratories 2.16.2009 System Clock Configuration Debug / Programming Hardware Digital Peripherals UART Timers 0, 1, 2, 3 SMBus Priority Crossbar Decoder Crossbar Control Port I/O Configuration External Clock Circuit Precision Internal Oscillator XTAL2 Power On Reset Reset C2D SYSCLK XTAL1 Regulator Core Power VDD GND Peripheral Power Analog Peripherals 10-bit 500 ksps ADC AMUX Temp Sensor Comparator + - VDD VDD VREF External Memory Interface Control Address Data P6 P4 / P3 P5 SFR Bus PCA WDT SPI Timer 3 / RTC Port 0 Drivers Port 1 Drivers Port 2 Drivers Port 3 Drivers Port 4 Drivers Port 5 Drivers Port 6 Drivers . . . . . . . . . . . . . . . P0.0 / VREF P0.1 / AGND P0.2 / XTAL1 P0.3 / XTAL2 P0.4 P0.5 P0.6 P0.7 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 P2.0 P2.7 P3.0 P3.7 P4.0 P4.7 P5.0 P5.7 P6.0 P6.5 Capacitive Sense (‘F700 Only) CIP-51 8051 Controller Core 256 Byte RAM 256 Byte XRAM 32 Bytes EEPROM 15 kB Flash Memory C2CK/RST C8051F700/1 25 MIPS, 15 kB Flash, 10-Bit ADC, 64-Pin Mixed-Signal MCU High-Speed 8051 ìC Core - Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks - Up to 25 MIPS throughput with 25 MHz system clock Memory - 15 kB Flash; in-application programmable in 512-byte sectors - 32 bytes Data EEPROM with 100,000 cycle read/write endurance - 512 bytes data RAM - External parallel data memory interface Analog Peripherals 10-Bit Analog to Digital Converter (‘F700) - Up to 500 ksps - 16 external inputs - On-chip voltage reference (may use VDD or external voltage) - Built-in temperature sensor - External conversion start input option Comparator - Programmable hysteresis and response time - Configurable as interrupt or reset source Capacitive Touch Sense - 16-bit capacitance-to-Digital Converter - Superior Noise Immunity and fast 40us aquisition time - Up to 32 external inputs - Auto-scan and compare - Auto-accumulate 4x, 8x, and 16x samples Digital Peripherals Up to 54 Port I/O with high sink current - Flexible configuration using digital crossbar - Many can be configured for analog or digital function - Every pin can be optimized for its best use Serial Communications - HW enhanced UART - SMBusTM (I2C compatible) - Enhanced SPITM User Programmable Timing Functions - Four general purpose 16-bit counter/timers - 16-bit programmable counter array (PCA) with three capture/compare modules and enhanced PWM capability - Real-time clock mode using enhanced timer and crystal Clock Sources - Calibrated Internal programmable oscillator • Calibrated to 2% accuracy over temp and Vdd • 24.5 MHz to allow max speed CPU operation • Supports crystal-less UART operation - External oscillator: Crystal, RC, C, or Clock - Can switch between clock sources on-the-fly Supply Voltage: 1.8 to 3.3 V - Built-in voltage supply monitor Temperature Range: –40 to +85 °C TQFP-64 Package