AT89C1051U-24PI Similar

AT89C1051U-24PI Datasheet and AT89C1051U-24PI manual

Manufacturer : Atmel 

Packing : plastic PDIP 

Pins : 20 

Temperature : Min -40 °C | Max 85 °C

Size : 221 KB

Application : 8-bit microcontroller with 1K bytes flash, 4.0V to 6.0V power supply 

AT89C1051U-24PI PDF Download