25LC128
N87C51RB (2)N87C51R (6)N87C51 (17)N87C5 (23)N87C (36)

N87C51RB1

MCS 51 87C Microcontroller IC 8-Bit 16MHz 16KB (16K x 8) OTP 44-PLCC

N87C51RB24

MCS 51 87C Microcontroller IC 8-Bit 24MHz 16KB (16K x 8) OTP 44-PLCC

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