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P80C51FA-4A,512
Manufacturers：
NXP Semiconductors/Freescale Semiconductor, Inc.
Description：
IC 80C51 MCU 256 ROMLESS 44PLCC
P80C51FA-4B,557
Manufacturers：
NXP Semiconductors/Freescale Semiconductor, Inc.
Description：
IC 80C51 MCU 8BIT ROMLESS 44QFP
P80C51FA-4N,112
Manufacturers：
NXP Semiconductors/Freescale Semiconductor, Inc.
Description：
IC 80C51 MCU 256 ROMLESS 40DIP
P80C51FA1SF88
Manufacturers：
Intel
Description：
IC MPU 8BIT 5V 16MHZ 40DIP
P80C51FA24SF88
Manufacturers：
Intel
Description：
IC MPU 8-BIT 5V 24MHZ 40-DIP