*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.
February 1995COPYRIGHT
©
INTEL CORPORATION, 1995 Order Number: 270501-007
80C51FA/83C51FA
EVENT-CONTROL CHMOS SINGLE-CHIP
8-BIT MICROCONTROLLER
Automotive
Y
Extended Automotive
Temperature Range
(
b
40
§
Cto
a
125
§
C Ambient)
Y
High Performance CHMOS Process
Y
Three 16-Bit Timer/Counters
Ð Timer 2 is an Up/Down
Timer/Counter
Y
Programmable Counter Array with:
Ð High Speed Output,
Ð Compare/Capture,
Ð Pulse Width Modulator,
Ð Watchdog Timer Capabilities
Y
8K On-Chip ROM
Y
256 Bytes of On-Chip Data RAM
Y
Boolean Processor
Y
32 Programmable I/O Lines
Y
7 Interrupt Sources
Y
Programmable Serial Channel with:
Ð Framing Error Detection
Ð Automatic Address Recognition
Y
TTL and CMOS Compatible Logic
Levels
Y
64K External Program Memory Space
Y
64K External Data Memory Space
Y
MCS
É
51 Microcontroller Fully
Compatible Instruction Set
Y
Power Saving Idle and Power Down
Modes
Y
ONCE (On-Circuit Emulation) Mode
Y
Available in PLCC and PDIP Packages
(See Packaging Specification, Order
Ý
231369)
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
É
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.
