8048, 8049, 8050, 8748, 8749, 8035, 8039, 8040 (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 +--------------+ [This information is part of the GIICM] 8048, 8049, 8050, 8748, 8749, 8035, 8039, 8040 (PLCC) Intel 8048-series microcontroller. PLCC44 +---------------------------------------------------------------+ | 7 /INT | 18 DB4 | 29 VCCRAM VPP | 40 P2.5 | | 8 EA | 19 DB5 | 30 P1.0 | 41 P2.6 | | 9 /RD | 20 DB6 | 31 P1.1 | 42 P2.7 | | 10 /PSEN | 21 DB7 | 32 P1.2 | 43 T1 | | 11 /WR | 22 GND | 33 P1.3 | 44 VCC | | 12 | 23 | 34 | 1 | | 13 ALE | 24 P2.0 | 35 P1.4 | 2 T0 | | 14 DB0 | 25 P2.1 | 36 P1.5 | 3 X1 | | 15 DB1 | 26 P2.2 | 37 P1.6 | 4 X0 | | 16 DB2 | 27 P2.3 | 38 P1.7 | 5 /RST | | 17 DB3 | 28 PROG | 39 P2.4 | 6 /SS | +---------------------------------------------------------------+ [This information is part of the GIICM]