80C51FA 83C51FA
EVENT-CONTROL CHMOS SINGLE-CHIP
8-BIT MICROCONTROLLER
Automotive
Y
Extended Automotive
Temperature Range
(
b
40 C to
a
125 C Ambient)
High Performance CHMOS Process
Three 16-Bit Timer Counters
Timer 2 is an Up Down
Timer Counter
Programmable Counter Array with
High Speed Output
Compare Capture
Pulse Width Modulator
Watchdog Timer Capabilities
8K On-Chip ROM
256 Bytes of On-Chip Data RAM
Boolean Processor
32 Programmable I O Lines
7 Interrupt Sources
Y
Programmable Serial Channel with
Framing Error Detection
Automatic Address Recognition
TTL and CMOS Compatible Logic
Levels
64K External Program Memory Space
64K External Data Memory Space
MCS 51 Microcontroller Fully
Compatible Instruction Set
Power Saving Idle and Power Down
Modes
ONCE (On-Circuit Emulation) Mode
Available in PLCC and PDIP Packages
(See Packaging Specification Order
231369)
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Available in 12 MHz and 16 MHz
Versions
MEMORY ORGANIZATION
PROGRAM MEMORY Up to 8 Kbytes of the program memory can reside in the on-chip ROM In addition the
device can address up to 64K of program memory external to the chip
DATA MEMORY This microcontroller has a 256 x 8 on-chip RAM In addition it can address up to 64 Kbytes of
external data memory
The Intel 80C51FA 83C51FA is a single-chip control oriented microcontroller which is fabricated on Intel’s
CHMOS III (83C51FA) ROM technology For the remainder of this datasheet references to the ROMless
(80C51FA) and ROM (83C51FA) versions will be denoted as 83C51FA Being a member of the MCS 51
microcontroller family the 83C51FA uses the same powerful instruction set has the same architecture and is
pin-for-pin compatible with the existing MCS 51 microcontroller products The 83C51FA is an enhanced
version of the 87C51 It’s added features make it an even more powerful microcontroller for applications that
require Pulse Width Modulation High Speed I O and up down counting capabilities such as brake and
traction control It also has a more versatile serial channel that facilitates multi-processor communications
NOTICE
This datasheet contains information on products in full production Specifications within this datasheet
are subject to change without notice Verify with your local Intel sales office that you have the latest
datasheet before finalizing a design
Other brands and names are the property of their respective owners
Information in this document is provided in connection with Intel products Intel assumes no liability whatsoever including infringement of any patent or
copyright for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products Intel retains the right to make
changes to these specifications at any time without notice Microcomputer Products may have minor variations to this specification known as errata
COPYRIGHT
INTEL CORPORATION 1995
February 1995
Order Number 270501-007
INTEL [ INTEL CORPORATION ]
