8XC51FX
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS
Commercial/Express
87C51FA/83C51FA/80C51FA/87C51FB/83C51FB/87C51FC/83C51FC
See Table 1 for Proliferation Options
Y
Y
Y
Y
High Performance CHMOS
EPROM/ROM/CPU
Y
32 Programmable I/O Lines
Y
7 Interrupt Sources
12/24/33 MHz Operation
Y
Four Level Interrupt Priority
Three 16-Bit Timer/Counters
Y
Programmable Serial Channel with:
- Framing Error Detection
- Automatic Address Recognition
Y
TTL Compatible Logic Levels
Y
64K External Program Memory Space
64K External Data Memory Space
Programmable Counter Array with:
- High Speed Output,
- Compare/Capture,
- Pulse Width Modulator,
- Watchdog Timer Capabilities
Y
Up/Down Timer/Counter
Y
Y
Three Level Program Lock System
Y
Y
8K/16K/32K On-Chip Program Memory
MCS 51 Controller Compatible
Instruction Set
Y
Y
256 Bytes of On-Chip Data RAM
Power Saving Idle and Power Down
Modes
Y
Improved Quick Pulse Programming
Algorithm
Y
ONCE (On-Circuit Emulation) Mode
Y
Extended Temperature Range Except
for 33 MHz Offering ( b 40 C to a 85 C)
Y
Boolean Processor
MEMORY ORGANIZATION
ROM/
EPROM
Bytes
RAM
Bytes
80C51FA
8K
256
80C51FA
16K
256
80C51FA
32K
256
ROM
Device
EPROM
Version
ROMLESS
Version
83C51FA
87C51FA
83C51FB
87C51FB
83C51FC
87C51FC
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
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, 2004
Order Number: 272322-005
July 2004
