name:         89C2051
function:     Micro
package:      DIP20,20
manufacturer: Atmel
added-by:     

          +--()--+
 +RST/VPP | 1  20| VCC
  RXD/P30 | 2  19| P17
  TXD/P31 | 3  18| P16
    XTAL2 | 4  17| P15
    XTAL1 | 5  16| P14
-INT0/P32 | 6  15| P13
-INT1/P33 | 7  14| P12
   T0/P34 | 8  13| P11/AIN1
   T1/P35 | 9  12| P10/AIN0
      GND |10  11| P37
          +------+

This information was added by a third party and may be incorrect.

This pinout came from the Chipdir:
http://www.chipdir.org/