
Go to Philips Semiconductors' home page
Select & Go...
Start
part
Catalog & Datasheets
Catalog by Function
Discrete semiconductors
Audio
Clocks and Watches
Data communications
Microcontrollers
Peripherals
Standard analog
Video
Wired communications
Wireless communications
Catalog by System
Automotive
Consumer Multimedia
Systems
Communications
PC/PC-peripherals
Cross reference
Models
Packages
Application notes
Selection guides
Other technical documentation
End of Life information
Datahandbook system
Relevant Links
About catalog tree
About search
About this site
Subscribe to eNews
Catalog & Datasheets
Search
P8xC557E8
Information as of 2000-08-23
P8xC557E8; 8-bit microcontroller
The 8-bit microcontrollers P80C557E8, P83C557E8 and P87C557E8 - hereafter referred to as P8xC557E8 - are
manufactured in an advanced CMOS process and are derivatives of the 80C51 microcontroller family.
The P8xC557E8 contains a volatile 2048 bytes read/write Data Memory, five 8-bit I/O ports, one 8-bit input port, two 16-bit
timer/event counters (identical to the timers of the 80C51), an additional 16-bit timer coupled to capture and compare
latches, a 15-source, two-priority-level, nested interrupt structure, an 8-input ADC, a dual Digital-to-Analog Convertor
(DAC), Pulse Width Modulated interface, two serial interfaces (UART and IC-bus), a Watchdog Timer, an on-chip
oscillator and timing circuits.
The P8xC557E8 is available in 3 versions:
l
P80C557E8: ROMless version
l
P83C557E8: containing a non-volatile 64 kbytes mask programmable ROM
l
P87C557E8: containing 64 kbytes programmable EPROM/OTP.
The P8xC557E8 is a control-oriented CPU with on-chip Program and Data Memory; it cannot be extended with external
Program Memory. It can access up to 64 kbytes of external Data Memory. For systems requiring extra capability, the
P8xC557E8 can be expanded using standard TTL compatible memories and peripherals.
In addition, the P8xC557E8 has two software selectable reduced power modes: Idle mode and Power-down mode. The
Idle mode freezes the CPU while allowing the RAM, timers, serial ports, and interrupt system to continue functioning. The
Power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be
Description
Features
Datasheet
Products, packages, availability and ordering
Find similar products
To be kept informed on P8xC557E8,
subscribe to eNews.
Subscribe
to eNews
Description