25LC128
P87C51FB-4 (3)P87C51FB (7)P87C51F (17)P87C51 (55)P87C5 (91)P87C (102)P87 (131)

NXP Semiconductors

P87C51FB-4A,512

8051 87C Microcontroller IC 8-Bit 16MHz 16KB (16K x 8) OTP 44-PLCC (16.59x16.59)
NXP Semiconductors

P87C51FB-4B,557

8051 87C Microcontroller IC 8-Bit 16MHz 16KB (16K x 8) OTP 44-PQFP (10x10)
NXP Semiconductors

P87C51FB-4N,112

8051 87C Microcontroller IC 8-Bit 16MHz 16KB (16K x 8) OTP 40-DIP

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