Driver for the PCF8574/PCF8574A Remote 8-bit I/O expander for I2C-bus with interrupt.
Circuit
+------------+
(GND)---[ ]---------1-|A0 VCC|-16--------------(VCC)
(GND)---[ ]---------2-|A1 SDA|-15-----------(SDA/A4)
(GND)---[ ]---------3-|A2 SCL|-14-----------(SCL/A5)
(P0)----------------4-|P0 INT|-13--------------(EXT)
(P1)----------------5-|P1 P7|-12---------------(P7)
(P2)----------------6-|P2 P6|-11---------------(P6)
(P3)----------------7-|P3 P5|-10---------------(P5)
(GND)---------------8-|GND P4|-9----------------(P4)
+------------+
References
- NXP Semiconductors Product data sheet, Rev. 5, 27 May 2013.
Definition at line 46 of file PCF8574.h.