AT89C4051-12SC Similar

AT89C4051-12SC Datasheet and AT89C4051-12SC manual

Manufacturer : Atmel 

Packing : plastic SOIC 

Pins : 20 

Temperature : Min 0 °C | Max 70 °C

Size : 291 KB

Application : 8-bit microcontroller with 4K bytes flash, 3.0V to 6.0V 

AT89C4051-12SC PDF Download