8XL51FA/FB/FC
LOW VOLTAGE
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS
Commercial/Express
87L51FA/83L51FA/80L51FA/87L51FB/83L51FB/87L51FC/83L51FC
Y
Y
High Performance CHMOS OTP ROM/
ROM/CPU
Boolean Processor
Y
Y
Y
Y
32 Programmable I/O Lines
7 Interrupt Sources
Y
Y
Low Voltage Operation
20 MHz Commercial/16 MHz Express
Operation
Four Level Interrupt Priority
Programmable Serial Channel with:
Ð Framing Error Detection
Ð Automatic Address Recognition
Y
Y
Three 16-Bit Timer/Counters
Programmable Counter Array with:
Ð High Speed Output,
Ð Compare/Capture,
Ð Pulse Width Modulator,
Ð Watchdog Timer Capabilities
Y
Y
Y
64K External Program Memory Space
64K External Data Memory Space
MCS 51 Microcontroller Compatible
É
Instruction Set
Y
Y
Y
Y
Y
Up/Down Timer/Counter
Y
Power Saving Idle and Power Down
Modes
Three Level Program Lock System
8K/16K/32K On-Chip Program Memory
256 Bytes of On-Chip Data RAM
Y
Y
ONCE (On-Circuit Emulation) Mode
Extended Temperature Range
Improved Quick Pulse Programming
Algorithm
b
a
40 C to 85 C)
(
§
§
MEMORY ORGANIZATION
ROM/
OTP ROM
Bytes
ROM
OTP ROM
ROMLESS
Version
RAM
Device
Version
Bytes
83L51FA
83L51FB
83L51FC
87L51FA
87L51FB
87L51FC
80L51FA
80L51FA
80L51FA
8K
16K
32K
256
256
256
These devices can address up to 64 Kbytes of external program/data memory.
The Intel 8XL51FA/8XL51FB/8XL51FC is a single-chip control oriented microcontroller which is fabricated on
Intel’s reliable CHMOS III-E technology. Being a member of the MCS 51 microcontroller family, the
É
8XL51FA/8XL51FB/8XL51FC uses the same powerful instruction set, has the same architecture, and is pin-
for-pin compatible with the existing MCS 51 microcontroller products.
The 8XL51FX is a 3V version of current 8XC51FX and will operate from 2.7V to 3.6V at a frequency range of
3.5 MHz to 16 MHz (Express)/20 MHz (Commercial).
For the remainder of this document, the 8XL51FA, 8XL51FB, 8XL51FC will be referred to as the 8XL51FX,
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
November 1994
Order Number: 272356-003