87C51FA Datasheet - Intel Corporation

87C51FA CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

VCC Supply voltage VSS Circuit ground VSS1 Secondary ground (in PLCC only) Provided to reduce ground bounce and improve power supply by-passing NOTE This pin is NOT a substitute for VSS pin (pin 22) Port 0 Port 0 is an 8-bit open drain bidirectional I O port As an output port each pin can sink seve.

87C51FA 87C51FB 87C51FC 87C51FC-20 CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER Automotive Y Y FX Core Architecture Device Extended Automotive Temperature Range ( b 40 C to a 125 C Ambient) Available in 12 MHz 16 MHz and 20 MHz Versions High Performance CHMOS EPROM Three 16-Bit Timer Counters Timer 2 (Up Down Counter) Programmable Counter Array with High Speed Output Compare Capture Pulse Width Modulator Watchdog Timer Capabilities One-to-Three Level Program Lock System on EPROM 8K On-Chip User Prog.

87C51FA Features

* of the 87C51FB FC Port Pin P1 0 P1 1 P1 2 P1 3 P1 4 P1 5 P1 6 P1 7 Alternate Function T2 (External Count Input to Timer Counter 2) T2EX (Timer Counter 2 Capture Reload Trigger and Direction Control) ECI (External Count Input to the PCA) CEX0 (External I O for Compare Capture Module 0) CEX1 (External

87C51FA Datasheet (279.21 KB)