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MCP23018x-x-SP
16-bit I/O expander, I2C interface, open-drain outpus (with configurable pull-up resistors), 2 interrupt outputs, DIP-28
Schematic Symbol
Pin Configuration (28 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | V_{SS} | power_in |
| 2 | NC | no_connect |
| 3 | GPB0 | bidirectional |
| 4 | GPB1 | bidirectional |
| 5 | GPB2 | bidirectional |
| 6 | GPB3 | bidirectional |
| 7 | GPB4 | bidirectional |
| 8 | GPB5 | bidirectional |
| 9 | GPB6 | bidirectional |
| 10 | GPB7 | bidirectional |
| 11 | V_{DD} | power_in |
| 12 | SCL | input |
| 13 | SDA | bidirectional |
| 14 | NC | no_connect |
| 15 | ADDR | input |
| 16 | ~{RESET} | input |
| 17 | NC | no_connect |
| 18 | INTB | output |
| 19 | INTA | output |
| 20 | GPA0 | bidirectional |
| 21 | GPA1 | bidirectional |
| 22 | GPA2 | bidirectional |
| 23 | GPA3 | bidirectional |
| 24 | GPA4 | bidirectional |
| 25 | GPA5 | bidirectional |
| 26 | GPA6 | bidirectional |
| 27 | GPA7 | bidirectional |
| 28 | NC | no_connect |
Footprint
ConfirmedPackage_DIP/DIP-28_W7.62mm
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 |