This adapter features a lidded Zero-Insertion-Force socket for programming 68-pin PLCC or CLCC packaged Philips and Dallas microcontrollers in a DIP-socketed programmer. The 40 pin DIP plug span is 0.6”. The adapter has a three-piece modular construction, allowing you to replace the individual sub-assemblies when they wear out. Supported devices include the following:
Philips 87C552, 87C554
Dallas 87C550
This adapter emulates the 40-pin DIP footprint of the 87C51FA (8K) and 87C52FB (16K). Programming Adapter Wiring Table | Device | Signal | DIP | | DIP | Signal | Device | | 1 | P5.0 | - | | - | P5.1 | 68 | | 2 | VCC | 40 | | - | P5.2 | 67 | | 3 | STADC | - | | - | P5.3 | 66 | | 4 | PWM0 | - | | - | P5.4 | 65 | | 5 | PWM1 | - | | - | P5.5 | 64 | | 6 | EW | - | | - | P5.6 | 63 | | 7 | P4.0 | - | | - | P5.7 | 62 | | 8 | P4.1 | - | | - | AVDD | 61 | | 9 | P4.2 | - | | - | AVSS | 60 | | 10 | P4.3 | - | | - | AVREF+ | 59 | | 11 | P4.4 | - | | - | AVREF- | 58 | | 12 | P4.5 | - | | 39 | P0.0/D0 | 57 | | 13 | P4.6 | - | | 38 | P0.1/D1 | 56 | | 14 | P4.7 | - | | 37 | P0.2/D2 | 55 | | 15 | RESET | 9 | | 36 | P0.3/D3 | 54 | | 16 | P1.0/A0 | 1 | | 35 | P0.4/D4 | 53 | | 17 | P1.1/A1 | 2 | | 34 | P0.5/D5 | 52 | | 18 | P1.2/A2 | 3 | | 33 | P0.6/D6 | 51 | | 19 | P1.3/A3 | 4 | | 32 | P0.7/D7 | 50 | | 20 | P1.4/A4 | 5 | | 31 | VPP/EA* | 49 | | 21 | P1.5/A5 | 6 | | 30 | PGM* | 48 | | 22 | P1.6/A6 | 7 | | 29 | PSEN* | 47 | | 23 | P1.7/A7 | 8 | | 28 | P2.7 | 46 | | 24 | P3.0 | 10 | | 27 | P2.6 | 45 | | 25 | P3.1 | 11 | | 26 | P2.5 | 44 | | 26 | P3.2 | 12 | | 25 | P2.4/A12 | 43 | | 27 | P3.3 | 13 | | 24 | P2.3/A11 | 42 | | 28 | P3.4 | 14 | | 23 | P2.2/A10 | 41 | | 29 | P3.5 | 15 | | 22 | P2.1/A9 | 40 | | 30 | P3.6 | 16 | | 21 | P2.0/A8 | 39 | | 31 | P3.7 | 17 | | - | n/c | 38 | | 32 | n/c | - | | 20 | GND | 37 | | 33 | n/c | - | | 20 | GND | 36 | | 34 | X2 | 18 | | 19 | X1 | 35 |
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