TP80C251SB16
Manufacturers：
Intel
Description：
IC MPU 8-BIT 5V 16MHZ EXT 40-DIP
TP80C251SQ16
Manufacturers：
Intel
Description：
IC MPU 8-BIT 5V 16MHZ EXT 40-DIP
TP80C251TB24
Manufacturers：
Intel
Description：
IC MPU 8-BIT 5V 24MHZ EXT 40-DIP
TP80C251TQ24
Manufacturers：
Intel
Description：
IC MPU 8-BIT 5V 24MHZ EXT 40-DIP