component
PCF8574TS
Unreviewed8-bit I2C I/O expander — quasi-bidirectional ports, interrupt
PCF8574TS
The PCF8574 from NXP is an 8-bit I/O expander with I2C interface. Quasi-bidirectional I/O ports with interrupt output. Three address pins allow 8 devices (64 I/O) per bus. The standard behind most I2C LCD backpacks (HD44780). SSOP-20.