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 Y Y Y Y Y Boolean Processor 32 Programmable I O Lines 7 Interrupt Sources Four Level Interrupt Priority Programmable Serial Channel with Framing Error Detection Automatic Address Recognit...

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