80C451 - 80C51 8-bit microcontroller

Product Overview

NXP

Part number	80C451
Manufacturer	NXP
File Size	162.75 KB
Description	80C51 8-bit microcontroller
Datasheet	80C451 Datasheet
Additional preview pages of the 80C451 datasheet.

The Philips 8XC451 is an I/O expanded single-chip microcontroller fabricated with Philips high-density CMOS technology.

except the on-board 4k × 8 ROM. The 87C451 has 4k of EPROM on-chip as program memory and is otherwise identical to the 83C451. The 8XC451 has two software selectable modes of reduced activity for further power reduction; idle mode and power-down mode. Idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning. Power-down mode freezes the oscillator, causing all other chip functions to be inoperative while maintaining the RAM contents. PIN.

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Published: Mar 22, 2005 |