datasheet: http://www.nxp.com/documents/data_sheet/PCAL9538A.pdf
description: Low-voltage and power 8-bit I2C SMBus expander
footprint: agg:QFN-16-EP-NXP
name: PCAL9538A
ordercodes:
- [Farnell, '2428172']
pins:
- - - [VDD, 14, pwrin]
  - - [~RESET, 1, in]
  - - [~INT, 11, oc]
    - [SCL, 12, oc]
    - [SDA, 13, oc]
  - - [A0, 15, in]
    - [A1, 16, in]
  - - [VSS, 6, pwrin]
    - [VSS, EP, pwrin]
- - - [P0, 2, bidi]
    - [P1, 3, bidi]
    - [P2, 4, bidi]
    - [P3, 5, bidi]
  - - [P4, 7, bidi]
    - [P5, 8, bidi]
    - [P6, 9, bidi]
    - [P7, 10, bidi]