AT80F51 Datasheet, ATMEL Corporation

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* Compatible with MCS-51™ Products 4K Bytes of Factory Programmable QuickFlash™ Memory Fully Static Operation: 0.

(continued) 8-Bit Microcontroller with 4K Bytes QuickFlash™ Memory AT80F51 Pin Configurations P1.0 P1.1 P1.2 P1.3 P1..