Document
8XL51FA FB FC LOW VOLTAGE CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS
Commercial Express
87L51FA 83L51FA 80L51FA 87L51FB 83L51FB 87L51FC 83L51FC
Y
High Performance CHMOS OTP ROM ROM CPU Low Voltage Operation 20 MHz Commercial 16 MHz Express Operation Three 16-Bit Timer Counters Programmable Counter Array with High Speed Output Compare Capture Pulse Width Modulator Watchdog Timer Capabilities Up Down Timer Counter Three Level Program Lock System 8K 16K 32K On-Chip Program Memory 256 Bytes of On-Chip Data RAM
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Boolean Processor 32 Programmable I O Lines 7 Interrupt Sources Four Level Interrupt Priority Programmable Serial Channel with Framing Error Detection Automatic Address Recognition 64K External Program Memory Space 64K External Data Memory Space MCS 51 Microcontroller Compatible Instruction Set Power Saving Idle and Power Down Modes ONCE (On-Circuit Emulation) Mode Extended Temperature Range ( b 40 C to a 85 C)
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Y Y
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Y Y Y Y Y
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Y Y
Improved Quick Pulse Programming Algorithm
MEMORY ORGANIZATION
ROM Device 83L51FA 83L51FB 83L51FC OTP ROM Version 87L51FA 87L51FB 87L51FC ROMLESS Version 80L51FA 80L51FA 80L51FA ROM OTP ROM Bytes 8K 16K 32K RAM Bytes 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 8XL51FA 8XL51FB 8XL51FC uses the same powerful instruction set has the same architecture and is pinfor-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
8XL51FA FB FC
NOTE Standard 3 5 MHz to b1 3 5 MHz to b 20 3 5 MHz to Only available for range not available at
Standard 80L51FA 83L51FA 87L51FA 83L51FB 87L51FB 83L51FC 87L51FC X X X X X X X
b1
b 20
X X X X X X X
X X X X X X X
12 MHz 2 7V to 3 6V 16 MHz 2 7V to 3 6V 20 MHz 2 7V to 3 6V commercial standard temperature express temperature range
272356 – 1
Figure 1 8XL51FX Block Diagram
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8XL51FA FB FC
PROCESS INFORMATION
The 8XL51FA 8XL51FB.