25LC128
P87C51SB (2)P87C51S (3)P87C51 (55)P87C5 (91)P87C (102)P87 (131)

NXP Semiconductors

P87C51SBAA,512

8051 87C Microcontroller IC 8-Bit 16MHz 4KB (4K x 8) OTP 44-PLCC (16.59x16.59)
NXP Semiconductors

P87C51SBPN,112

8051 87C Microcontroller IC 8-Bit 16MHz 4KB (4K x 8) OTP 40-DIP

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