Overview
The PCF8575 is a 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 5.5-V VCC operation.
The PCF8575 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock of up to Eight Devices (SCL), serial data (SDA)].
The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), including latched outputs with high-current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are high.
Specifics
| Property | Details |
|---|---|
| IOs | 16 |
| Voltage | 2.5-6v |
| High Output Max Amperage | 8mA |
Pin Out
References
| Reference | URL |
|---|---|
| Texas Instruments Data Sheet | http://www.ti.com/lit/ds/symlink/pcf8575.pdf |