87C51 - CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

Product Overview

Intel Corporation

Datasheet Details

Part number	87C51
Manufacturer	Intel Corporation
File Size	284.04 KB
Description	CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Datasheet	87C51 Datasheet
Additional preview pages of the 87C51 datasheet.

Product details

Description

VCC Supply voltage during normal Idle and Power Down operations VSS Circuit ground Port 0 Port 0 is an 8-bit open drain bidirectional I O port As an output port each pin can sink several LS TTL inputs Port 0 pins that have 1’s written to them float and in that state can be used as high-impedance inputs Port 0 is also the multiplexed low-order address and data bus during accesses to external memory In this application it uses strong internal pullups when emitting 1’s Port 0 also receives the code

Features

of the MCS-51 Family as listed below Pin P3 0 P3 1 P3 2 P3 3 P3 4 P3 5 P3 6 P3 7 Name RXD TXD INT0 INT1 T0 T1 WR RD Alternate Function Serial input line Serial output line External Interrupt 0 External Interrupt 1 Timer 0 external input Timer 1 external input External Data Memory Write strobe External Data Memory Read strobe PIN.

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Published: Mar 22, 2005 |