Features • 80C52 Compatible – 8051 Pin and Instruction Compatible – Four 8-bit I/O Ports – Three 16-bit Timer/Counters – 256 Bytes Scratchpad RAM • High-speed Architecture • 40 MHz at 5V, 30 MHz at 3V • X2 Speed Improvement Capability (6 Clocks/Machine Cycle) – 30 MHz at 5V, 20 MHz at 3V (Equivalent to 60 MHz at 5V, 40 MHz at 3V) • Dual Data Pointer • On-chip ROM/EPROM (8Kbytes) • Programmable Clock Out and Up/Down Timer/Counter 2 • Asynchronous Port Reset • Interrupt Structure with – 6 Interrupt Sources – 4 Level Priority Interrupt System • Full Duplex Enhanced UART – Framing Error Detection – Automatic Address Recognition • Low EMI (Inhibit ALE) • Power Control Modes – Idle Mode – Power-do...

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