6052AH - Intel Corporation

6052AH MCS51 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+!-29 26 27 26 25 24 23 22 21 EPROM only q “*Do not connect P.

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 strobe) ~ (external data memory read strobe) I Port Pin P1.0 P1.1 I Alternative Function T2 (Timer/Counter 2 External Input) T2EX (Timer/Counter 2 Capture/Reload Trigger) I RST: Reset input. A high on this pin for two machine cycles while the oscillator is running resets the device, ALE/PROG: Ad.