Document
CROSSBARNot Recommended for New Designs Ext. Memory I/F
Capacitance to Digital Converter - Supports buttons, sliders, wheels, capacitive prox-
imity, and touch screen sensing - Up to 38 input channels - Fast 40 µs per channel conversion time - 12, 13, 14, or 16-bit output - Auto-scan and wake-on-touch - Auto-accumulate 4, 8, 16, 32, or 64 samples 10-Bit Analog to Digital Converter - Up to 500 ksps - Up to 16 external single-ended inputs - VREF from on-chip VREF, external pin or VDD - Internal or external start of conversion source - Built-in temperature sensor Analog Comparator - Programmable hysteresis and response time - Configurable as interrupt or reset source 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 - Superior performance to emulation systems using
ICE-chips, target pods, and sockets - Low cost, complete development kit Supply Voltage 1.8 to 3.6 V - Built-in voltage supply monitor
C8051F70x/71x
Mixed Signal ISP Flash MCU Family
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 Memory - 512 bytes internal data RAM (256 + 256) - Up to 16 kB Flash; In-system programmable in 512-
byte Sectors - Up to 32-byte data EEPROM Digital Peripherals - Up to 54 Port I/O with high sink current - Hardware enhanced UART, SMBus™ (I2C compati-
ble), and enhanced SPI™ serial ports - Four general purpose 16-bit counter/timers - 16-Bit programmable counter array (PCA) with 3
capture/compare modules and enhanced PWM functionality - Real time clock mode using timer and crystal Clock Sources - 24.5 MHz ±2% Oscillator Supports crystal-less UART operation - External oscillator: Crystal, RC, C, or clock (1 or 2 pin modes) - Can switch between clock sources on-the-fly; useful in power saving modes 64-Pin TQFP, 48-Pin TQFP, 48-Pin QFN, 32-Pin QFN, 24-Pin QFN Temperature Range: –40 to +85 °C
ANALOG PERIPHERALS
A M U
10-bit TEMP 500 ksps SENSOR
X ADC
+
Capacitive Sense
–
VOLTAGE COMPARATOR
DIGITAL I/O
UART
Port 0
SMBus
Port 1
SPI PCA Timer 0 Timer 1 Timer 2 Timer 3
Port 2 Port 3 Port 4 Port 5
Port 6.0 – 6.5
24.5 MHz PRECISION INTERNAL OSCILLATOR
HIGH-SPEED CONTROLLER CORE
16 kB ISP FLASH
FLEXIBLE INTERRUPTS
8051 CPU (25 MIPS)
DEBUG CIRCUITRY
512 B RAM 32 B EEPROM
POR WDT
Rev. 1.0 7/10
Copyright © 2010 by Silicon Laboratories
C8051F70x/71x
C8051F70x/71x
2 Rev. 1.0
Not Recommended for New Designs
Not Recommended for New Designs
C8051F70x/71x
Table of Contents
1. System Overview ..................................................................................................... 17 2. Ordering Information ............................................................................................... 26 3. Pin Definitions...........................................