P87C552SBAA,512

Manufacturers：
NXP Semiconductors/Freescale Semiconductor, Inc.
Description：
IC 80C51 MCU 8K OTP 68-PLCC

P87C552SFAA,512

Manufacturers：
NXP Semiconductors/Freescale Semiconductor, Inc.
Description：
IC 80C51 MCU 8BIT OTP 68PLCC