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MC68A40
Motorola Programmable Timer Module, 1.5MHz, DIP-28
Schematic Symbol
Pin Configuration (28 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | VSS | power_in |
| 2 | ~{G2} | input |
| 3 | O2 | output |
| 4 | ~{C2} | input |
| 5 | ~{G3} | input |
| 6 | O3 | output |
| 7 | ~{C3} | input |
| 8 | ~{RESET} | input |
| 9 | ~{IRQ} | output |
| 10 | RS0 | input |
| 11 | RS1 | input |
| 12 | RS2 | input |
| 13 | R/~{W} | input |
| 14 | VCC | power_in |
| 15 | ~{CS0} | input |
| 16 | CS1 | input |
| 17 | E | input |
| 18 | D7 | input |
| 19 | D6 | input |
| 20 | D5 | input |
| 21 | D4 | input |
| 22 | D3 | input |
| 23 | D2 | input |
| 24 | D1 | input |
| 25 | D0 | input |
| 26 | ~{G1} | input |
| 27 | O1 | output |
| 28 | ~{C1} | input |
Footprint
ConfirmedPackage_DIP/DIP-28_W15.24mm
Pad Layout
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pads (28)
| Number | Type |
|---|---|
| 1 | thru hole |
| 2 | thru hole |
| 3 | thru hole |
| 4 | thru hole |
| 5 | thru hole |
| 6 | thru hole |
| 7 | thru hole |
| 8 | thru hole |
| 9 | thru hole |
| 10 | thru hole |
| 11 | thru hole |
| 12 | thru hole |
| 13 | thru hole |
| 14 | thru hole |
| 15 | thru hole |
| 16 | thru hole |
| 17 | thru hole |
| 18 | thru hole |
| 19 | thru hole |
| 20 | thru hole |
| 21 | thru hole |
| 22 | thru hole |
| 23 | thru hole |
| 24 | thru hole |
| 25 | thru hole |
| 26 | thru hole |
| 27 | thru hole |
| 28 | thru hole |