8035, 8039, 8040, 8048, 8049, 8050 (DIP)
Intel 8048-series microcontroller.
+-----+--+-----+
T0 |1 +--+ 40| VCC
X1 |2 39| T1
X0 |3 38| P2.7
/RST |4 37| P2.6
/SS |5 36| P2.5
/INT |6 35| P2.4
EA |7 34| P1.7
/RD |8 33| P1.6
/PSEN |9 32| P1.5
/WR |10 8048 31| P1.4
ALE |11 series 30| P1.3
DB0 |12 29| P1.2
DB1 |13 28| P1.1
DB2 |14 27| P1.0
DB3 |15 26| VCC_RAM VPP
DB4 |16 25| PROG
DB5 |17 24| P2.3
DB6 |18 23| P2.2
DB7 |19 22| P2.1
GND |20 21| P2.0
+--------------+ |