name: PCF8574-2 function: Expand I/O package: SO16; DIP16,16 manufacturer: Phillips added-by: Grant Stockly comment: Expands I/O over I2C +--()--+ A0 | 1 16| VDD A1 | 2 15| SDA A2 | 3 14| SCL P0 | 4 13| INT P1 | 5 12| P7 P2 | 6 11| P6 P3 | 7 10| P5 VSS | 8 9| P4 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/ name: PCF8574 function: expand i/o package: SSOP20,20 manufacturer: phillips added-by: Grant Stockly comment: I2C I/O expander +--()--+ INT | 1 20| P7 SCL | 2 19| P6 n.c. | 3 18| n.c. SDA | 4 17| P5 VDD | 5 16| P4 A0 | 6 15| VSS A1 | 7 14| P3 n.c. | 8 13| n.c. A2 | 9 12| P2 P0 |10 11| P1 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/ name: PCF8574_DIP16 function: I2C 8-bit I/O expander package: DIP16,16 manufacturer: Philips +--()--+ a0 | 1 16| Vdd a1 | 2 15| sda a2 | 3 14| scl p0 | 4 13| int p1 | 5 12| p7 p2 | 6 11| p6 p3 | 7 10| p5 Vss | 8 9| p4 +------+ This pinout came from the Chipdir: http://www.chipdir.org/ name: PCF8574_SSOP20 function: I2C 8-bit I/O expander package: SSOP20,20 manufacturer: Philips +--()--+ int | 1 20| p7 scl | 2 19| p6 nc | 3 18| nc sda | 4 17| p5 Vdd | 5 16| p4 a0 | 6 15| Vss a1 | 7 14| p3 nc | 8 13| nc a2 | 9 12| p2 p0 |10 11| p1 +------+ This pinout came from the Chipdir: http://www.chipdir.org/