AT89C4051-12PI Similar

AT89C4051-12PI Datasheet and AT89C4051-12PI manual

Manufacturer : Atmel 

Packing : plastic PDIP 

Pins : 20 

Temperature : Min -40 °C | Max 85 °C

Size : 291 KB

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

AT89C4051-12PI PDF Download