Search for "AT89"
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32KB 32K x 8 FLASH 80C51 8-Bit Microcontroller 89C Series AT89C5122 64-LQFP
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64KB 64K x 8 FLASH 80C51 8-Bit Microcontroller AT89C CAN Series AT89C51CC03 44-LQFP
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4KB 4K x 8 FLASH 8051 8-Bit Microcontroller 89C Series AT89C4051 20-DIP (0.300, 7.62mm)