P80C557E4EFB/01,55

MCU 8Bit 80C 80C51 CISC ROMLess 5V 80Pin PQFP Tray

8051 series IC 8 位 16MHz - ROMless 80-PQFP（14x20）

得捷:
IC MCU 8BIT ROMLESS 80PQFP

艾睿:
MCU 8-bit P80 80C51 CISC ROMLess 5V Automotive 80-Pin PQFP Tray

安富利:
MCU 8-bit 80C 80C51 CISC ROMLess 5V 80-Pin PQFP Tray

Chip1Stop:
MCU 8-Bit 80C 80C51 CISC ROMLess 5V 80-Pin PQFP Tray