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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)