【Intel】S87C51RA1,IC MCU 8BIT 8K 16MHZ OTP 44-MQFP
【Intel】S87C51RA24,IC MCU 8BIT 8K 24MHZ OTP 44-MQFP
【Intel】S87C51RB1,IC MCU 8BIT 16K 16MHZ OTP 44MQFP
【Intel】S87C51RB24,IC MCU 8BIT 16K 24MHZ OTP 44MQFP
【Intel】S87C51RC1,IC MCU 8BIT 32K 16MHZ OTP 44MQFP
【Intel】S87C51RC24,IC MCU 8BIT 32K 24MHZ OTP 44MQFP
【Intel】S87C521SF76,IC MCU 8BIT 8K 16MHZ OTP 44-MQFP
【Intel】S87C541SF76,IC MCU 8BIT 16K 16MHZ OTP 44MQFP