Datasheet Details
| Part number | PCF8574 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 367.27 KB |
| Description | Remote 8-bit I/O expander |
| Datasheet |
 PCF8574 Datasheet
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General Description
The PCF8574/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).
Key Features
- I2C-bus to parallel port expander.
- 100 kHz I2C-bus interface (Standard-mode I2C-bus).
- Operating supply voltage 2.5 V to 6 V with non-overvoltage tolerant I/O held to VDD with 100 A current source.
- 8-bit remote I/O pins that default to inputs at power-up.
- Latched outputs directly drive LEDs.
- Total package sink capability of 80 mA.
- Active LOW open-drain interrupt output.
- Eight programmable slave addresses using three address pins.
- Low standby current.
