8XC51FX
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS
Commercial/Express
87C51FA/83C51FA/80C51FA/87C51FB/83C51FB/87C51FC/83C51FC
*See Table 1 for Proliferation Options
Y
Y
High Performance CHMOS
EPROM/ROM/CPU
32 Programmable I/O Lines
7 Interrupt Sources
Y
Y
Y
Y
Y
Y
12/24/33 MHz Operation
Four Level Interrupt Priority
Three 16-Bit Timer/Counters
Programmable Serial Channel with:
Ð Framing Error Detection
Ð Automatic Address Recognition
Programmable Counter Array with:
Ð High Speed Output,
Ð Compare/Capture,
Ð Pulse Width Modulator,
Ð Watchdog Timer Capabilities
Y
Y
Y
Y
TTL Compatible Logic Levels
64K External Program Memory Space
64K External Data Memory Space
Y
Y
Y
Y
Y
Up/Down Timer/Counter
MCS 51 Controller Compatible
É
Three Level Program Lock System
8K/16K/32K On-Chip Program Memory
256 Bytes of On-Chip Data RAM
Instruction Set
Y
Power Saving Idle and Power Down
Modes
Improved Quick Pulse Programming
Algorithm
Y
Y
ONCE (On-Circuit Emulation) Mode
Extended Temperature Range
Y
Boolean Processor
b
a
40 C to 85 C)
(
§
§
MEMORY ORGANIZATION
ROM/
EPROM
Bytes
ROM
EPROM
ROMLESS
Version
RAM
Device
Version
Bytes
83C51FA
83C51FB
83C51FC
87C51FA
87C51FB
87C51FC
80C51FA
80C51FA
80C51FA
8K
16K
32K
256
256
256
These devices can address up to 64 Kbytes of external program/data memory.
The Intel 87C51FA/8XC51FB/8XC51FC is a single-chip control oriented microcontroller which is fabricated on
Intel’s reliable CHMOS III-E technology. The Intel 83C51FA/80C51FA is fabricated on CHMOS III technology.
Being a member of the MCS 51 controller family, the 8XC51FA/8XC51FB/8XC51FC uses the same powerful
É
instruction set, has the same architecture, and is pin-for-pin compatible with the existing MCS 51 controller
products. The 8XC51FA/8XC51FB/8XC51FC is an enhanced version of the 8XC52/8XC54/8XC58. Its 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 motor control.
For the remainder of this document, the 8XC51FA, 8XC51FB, 8XC51FC will be referred to as the 8XC51FX,
unless information applies to a specific device.
*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
December 1995
Order Number: 272322-003
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