1/5PCS AT89C51RC-24PI 40PINS 8-bit Microcontroller with 32K Bytes Flash IC

2 PCS AT89C51RC-24PU DIP-40 AT89C51 8-bit Microcontroller with 32K Bytes Flash

1PCS AT89C51RC-24PI DIP40 8-bit Microcontroller with 32K Bytes Flash ATMEL

1/5PCS AT89C55WD-24PU 40PINS 8-bit Microcontroller with 20K Bytes Flash

5 PCS AT89C52-24PI DIP-40 AT89C52 8-Bit Microcontroller with 8K Bytes Flash

2PCS AT89C2051-24PI AT89C2051 8-Bit Microcontroller with 2K Bytes Flash

1PCS AT89C52-24PC 8-Bit Microcontroller with 8K Bytes Flash DIP40