Welcome to Chinaicmart  Sign In  Join Free
  • Suppliers Datasheet
  • Exact Match 
Escrow Service
  • Get a Quote/Urgent Purchase
  • Part Number
  • Qty

Response in 12 hours

87C451

Current position:Home > Product map > 87C451

RFQ for 87C451

Required Field
Part Number: Quantity:
Country/Region: Email:
Description:
    Chat with me
Please fill in the part number: 87C451, and complete your requirements of 87C451 and contact details, such as your company name, contacter, telephone and so on, So that suppliers can directly contact you.
SeekIC Live Chat Custom PCB Prototype

Parameters


Product Manufacturers Pack D/C
87C451 - - 01+

Pinout/Connection Diagram

 

General Description

The Philips 8XC451 is an I/O expanded single-chip microcontroller fabricated with Philips high-density CMOS technology. Philips epitaxial substrate minimizes latch-up sensitivity. The 8XC451 (includes the 80C451, 87C451 and 83C451) is a functional extension of the 87C51 microcontroller with three additional I/O ports and four I/O control lines for a total of 68 pins. Four control lines associated with port 6 facilitate high-speed asynchronous I/O functions.
The 8XC451 includes a 4k × 8 ROM (83C451) EPROM (87C451), a128 × 8 RAM, 56 I/O, two 16-bit timer/counters, a five 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.
The80C451 ROMless version includes all of the 83C451 features 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.

Features

*80C51 based architecture*Seven 8-bit I/O ports*Port 6 features: Eight data pins Four control pins Direct MPU bus interface Parallel printer interface*On the microcontroller: 4k * 8 ROM (83C451) 4k * 8 EPROM (87C451) ROMless version (80C451) 128 * 8 RAM Two 16-bit counter/timers Two external interrupts*External memory addressing capability 64k ROM and 64k RAM*Low power consumption: Normal operation: less than 24mA at 5V, 12MHz Idle mode Power-down mode

Maximum Ratings

PARAMETER RATING UNIT
Operating temperature under bias 0 to +70
Storage temperature range 65 to +150
Voltage on any other pin to VSS 0.5 to +6.5 V
Power dissipation (based on package heat transfer limitations, not device power consumption) 1.5 W

NOTES:
1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any conditions other than those described in the AC and DC Electrical Characteristics section of this specification is not implied.
2. This product includes circuitry specifically designed for the protection of its internal devices from the damaging effects of excessive static charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying greater than the rated maxima.
3. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS  unless otherwise noted.

Supplier

Post a Buying Lead

PDF / Datasheet

87C451 PDF Download

87C451

File Size: 166654 KB
Manufacturer: PHILIPS [Philips Semiconductors]

Related PDF

87C055
File Size: 249495 KB
Manufacturer:PHILIPS [Philips Semiconductors]
87C151
File Size: 304987 KB
Manufacturer:INTEL [Intel Corporation]
87C151SA
File Size: 304987 KB
Manufacturer:INTEL [Intel Corporation]
87C151SB
File Size: 304987 KB
Manufacturer:INTEL [Intel Corporation]
87C196
File Size: 438357 KB
Manufacturer:INTEL [Intel Corporation]

Related Models

  Models MFG Pack
87C1202
87C196KD PLCC68
87C196KD20
87C196MC DIP
87C251SP16
87C405AM
87C405AM-1K44
87C405M
87C405M-1560
87C405M1767
87C408
87C408M
87C409BM3VU9
87C409BM-3VU9
87C447UG-5PC5
87C451
87C451/CMA
87C51
87C51/BQA
87C5101
Part Number Include: A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  0  1  2  3  4  5  6  7  8  9 

© 2009 China Electronics Market