Automotive 80C51FA/83C51FA

270501 ±1

Figure 1. 83C51FA Block Diagram

Image 2

Contents

EVENT-CONTROL Chmos SINGLE-CHIP BIT Microcontroller Memory Organization Automotive 80C51FA/83C51FA To + Extended 80C51FA/83C51FA Product OptionsTo + Extended Automotive PIN Descriptions Port Pin Alternate Function Oscillator Characteristics P3.7 RD external data memory read strobe Once Mode Idle ModePower Down Mode Status of the External Pins during Idle and Power Down XTAL, RST Symbol Parameter Min Typ MaxPdip RST Pulldown Resistor 100 225 Symbol Parameter Min Typ Max Unit Test ConditionsRrst CIO ICC vs Frequency Explanation of the AC Symbols External Memory Characteristics External Data Memory Write Cycle External Program Memory Read CycleExternal Data Memory Read Cycle External Clock Drive Serial Port TIMING-SHIFT Register ModeShift Register Mode Timing Waveforms External Clock Drive Waveform Datasheet Revision History AC Testing INPUT, Output Waveforms Float Waveforms