8051AH Datasheet (Intel Corporation) - MCS 51 8-BIT CONTROL-ORIENTED MICROCONTROLLERS

8051AH, MCS 51 8-BIT CONTROL-ORIENTED MICROCONTROLLERS

of Intel’s thermal impedance test methodology.

~“52’80320NL’ L{ ~ 40 39 38 37 36 35 34 33 Vcc P’,’ ADO PO.1 AD1 PO.2 A02 PO.3 A03 PO.4 AD4 PO.5 AD5 P06 AD’ 3 PO.7A07 3 EIJvpp” Z ALEIPROG” 3%FFI 3 P2.7 A15 2 P2.6A14 3 P2.5 A13 I P2.4 A12 1 P2.3 Al 1 > P2.2 AlO 3 P2 1 A9 X P20 A8 T2 T2EX ‘1 ‘ss+!

8051AH Features

* of the MCS 51 Family, as listed below: Port Pin P3,0 P3.1 P3.2 P3,3 P3.4 P3.5 P3.6 P3.7 Alternative Function RXD (serial input port) TXD (serial output port) INTO(external interrupt O) INT1 (external interrupt 1) TO(Timer Oexternal input) T1 (Timer 1 external input) WR (external data memory write st