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83C453

NXP
Part Number 83C453
Manufacturer NXP
Description 80C51 8-bit microcontroller family 8K/256 OTP/ROM/ expanded I/O
Published Mar 22, 2005
Detailed Description INTEGRATED CIRCUITS 83C453/87C453 80C51 8-bit microcontroller family 8K/256 OTP/ROM, expanded I/O Preliminary specifica...
Datasheet PDF File 83C453 PDF File

83C453
83C453

Overview
INTEGRATED CIRCUITS 83C453/87C453 80C51 8-bit microcontroller family 8K/256 OTP/ROM, expanded I/O Preliminary specification Supersedes data of 1997 Dec 29 IC20 Data Handbook 1998 Apr 23 Philips Semiconductors Philips Semiconductors Preliminary specification 80C51 8-bit microcontroller family 8K/256 OTP/ROM, expanded I/O 83C453/87C453 DESCRIPTION The Philips 8XC453 is an I/O expanded single-chip microcontroller fabricated with Philips high-density CMOS technology.
Philips epitaxial substrate minimizes latch-up sensitivity.
The 8XC453 is a functional extension of the 87C51 microcontroller with three additional I/O ports and four I/O control lines.
The 8XC453 is available in 68-pin LCC packages.
Four control lines associated with port 6 facilitate high-speed asynchronous I/O functions.
The 87C453 includes an 8k × 8 EPROM, a 256 × 8 RAM, 56 I/O lines, two 16-bit timer/counters, a seven source, two priority level, nested interrupt structure, a serial I/O port for either a full duplex UART, I/O expansion, or multi-processor communications, and on-chip oscillator and clock circuits.
The 87C453 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.
FEATURES • 80C51 based architecture • Seven 8-bit I/O ports • Port 6 features: – Eight data pins – Four control pins – Direct MPU bus interface – ISA Bus Interface – Parallel printer interface – IBF and OBF interrupts – A flag latch on host write • On the microcontroller: – 8k × 8 EPROM Quick pulse programming algorithm Two-level program security system – 256 × 8 RAM – Two 16-bit counter/timers – Two external interrupts • External memory addressing capability – 64k ROM and 64k RAM • Low power consumption: – Normal operat...


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