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 MCSÉ 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.

■ 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
■ Improved Quick Pulse Programming Algorithm
■ 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
■ MCSÉ 51 Microcontroller Compatible Instruction Set
■ Power Saving Idle and Power Down Modes
■ ONCE (On-Circuit Emulation) Mode
■ Extended Temperature Range (-40°C to +85°C)