PCF8575C

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCF8575C SCPS123F – MARCH 2005 – REVISED JANUARY 2015 PCF8575C Remote 16-Bit I2C AND SMBus Low-Power I/O Expander with Interrupt Output 1 Features 1 I2C to Parallel-Port Expander Open-Drain Interrupt Output Low Standby-Current Consumption of 10 μA Maximum Compatible With Most Microcontrollers 400-kHz Fast I2C Bus Address by Three Hardware Address Pins for Use of up to Eight Devices Latched Outputs With High-Current Drive Capability for Directly Driving LEDs Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model – 200-V Machine Model – 1000-V Charged-Device Model 2 Applications Telecom Shelters: Filter Units Servers Routers (Telecom Switching Equipment) Personal Computers Personal Electronics Industrial Automation Products with GPIO-Limited Processors 3 Description This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 4.5-V to 5.5-V VCC operation. The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and 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-d...