83C51FB Datasheet (Intel Corporation) - CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS

83C51FB, CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS

VCC Supply voltage Port 1 receives the low-order address bytes during EPROM programming and verifying Port 2 Port 2 is an 8-bit bidirectional I O port with internal pullups The Port 2 output buffers can drive LS TTL inputs Port 2 pins that have 1’s written to them are pulled high by the internal p

8XC51FX CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS Commercial Express 87C51FA 83C51FA 80C51FA 87C51FB 83C51FB 87C51FC 83C51FC See Table 1 for Proliferation Options Y High Performance CHMOS EPROM ROM CPU 12 24 33 MHz Operation Three 16-Bit Timer Counters Programmable Counter Array with High Speed Output Compare Capture Pulse Width Modulator Watchdog Timer Capabilities Up Down Timer Counter Three Level Program Lock System 8K 16K 32K On-Chip Program Memory 256 Bytes of On-Chip Data RAM Improved Quic

83C51FB Features

* make it an even more powerful microcontroller for applications that require Pulse Width Modulation High Speed I O and up down counting capabilities such as motor control For the remainder of this document the 8XC51FA 8XC51FB 8XC51FC will be referred to as the 8XC51FX unless information applies to a