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PCA9538BS
8-bit I/O expander, I2C / SMBus interface, interrupt and reset pins, VQFN-16
Schematic Symbol
Pin Configuration (17 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | ~{RESET} | input |
| 2 | IO0 | bidirectional |
| 3 | IO1 | bidirectional |
| 4 | IO2 | bidirectional |
| 5 | IO3 | bidirectional |
| 6 | V_{SS} | power_in |
| 7 | IO4 | bidirectional |
| 8 | IO5 | bidirectional |
| 9 | IO6 | bidirectional |
| 10 | IO7 | bidirectional |
| 11 | ~{INT} | open_collector |
| 12 | SCL | input |
| 13 | SDA | bidirectional |
| 14 | V_{DD} | power_in |
| 15 | A0 | input |
| 16 | A1 | input |
| 17 | V_{SS} | passive |
Footprint
ConfirmedPackage_DFN_QFN/NXP_VQFN-16-1EP_4x4mm_P0.65mm_EP2.1x2.1mm
Pad Layout
—
—
—
—
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Pads (21)
| Number | Type |
|---|---|
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |