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Intel Corporation
Intel Corporation


80C51FA

EVENT-CONTROL CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER



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80C51FA pdf
80C51FA 83C51FA
EVENT-CONTROL CHMOS SINGLE-CHIP
8-BIT MICROCONTROLLER
Automotive
Y Extended Automotive
Temperature Range
(b40 C to a125 C Ambient)
Y High Performance CHMOS Process
Y Three 16-Bit Timer Counters
Timer 2 is an Up Down
Timer Counter
Y Programmable Counter Array with
High Speed Output
Compare Capture
Pulse Width Modulator
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
Framing Error Detection
Automatic Address Recognition
Y TTL and CMOS Compatible Logic
Levels
Y 64K External Program Memory Space
Y 64K External Data Memory Space
Y MCS 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 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 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



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AUTOMOTIVE 80C51FA 83C51FA
Figure 1 83C51FA Block Diagram
270501 – 1
2



Part Number 80C51FA
Description EVENT-CONTROL CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Maker Intel Corporation - Intel Corporation
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