PCF8575CTS/1,118

I/o Expanders Overview

The PCF8575CTS/1,118 is a silicon CMOS remote 16-bit I/O expander for the I2C-bus. It provides general-purpose remote I/O expansion via a two-line bidirectional bus. The device features a 16-bit quasi-bidirectional port and an open-drain interrupt output. Operating supply voltage ranges from 4.5 to 5.5 V with a maximum standby current of 10 μA. It supports FAST I2C-bus speeds up to 400 kbits/s. Addressing is configured by three hardware pins, allowing up to eight devices on the bus. The package is SSOP24.

I/o Expanders Feature Summary

• Provides 16-bit remote I/O expansion via the I2C-bus interface
• Features latched outputs with high current drive capability for directly driving LEDs
• Includes an open-drain interrupt output (INT) to notify the microcontroller of incoming data without bus communication
• Supports addressing by three hardware address pins for use of up to eight devices

I/o Expanders Applications

• Remote I/O expansion for most microcontroller families
• Systems requiring direct LED driving through latched outputs
• Multi-device configurations utilizing hardware address pins

I/o Expanders Procurement Notes

Verify the component matches the Philips Semiconductors product specification dated August 05, 1999. Confirm the package type is SSOP24 and the operating voltage range aligns with the 4.5 to 5.5 V requirement. Ensure the ordering suffix corresponds to the specified plastic shrink small outline package version.

I/o Expanders Selection Notes

Select this component when a 16-bit I/O expander is required for systems operating within the 4.5 to 5.5 V supply range. It is suitable for applications needing low standby current consumption and compatibility with standard I2C-bus protocols. Consider the SSOP24 package constraints and the need for hardware address pins if multiple units are deployed on the same bus.

I/o Expanders Part Context

The PCF8575C is part of the PCF8575 family of remote I/O expanders. This specific variant operates within a defined voltage window and utilizes the SSOP24 package format. It serves as a slave transmitter/receiver on the I2C-bus, expanding the capabilities of microcontrollers by providing additional digital input and output lines.

I/o Expanders Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.