PCF8575CDGVR

I/o Expanders Overview

The PCF8575CDGVR is a remote 16-bit I2C and SMBus I/O expander manufactured by Texas Instruments. It provides general-purpose digital input and output expansion via the I2C two-line serial interface. The device features an interrupt output pin to signal data changes to the microprocessor. It operates within a supply voltage range of 1.8 V to 5.5 V and supports clock frequencies up to 400 kHz. The component is housed in a 24-pin TSSOP package and is rated for an operating temperature range of -40°C to +85°C.

I/o Expanders Feature Summary

• Provides 16-bit remote I/O expansion through standard I2C and SMBus interfaces
• Includes dedicated interrupt output capability for efficient event-driven communication
• Supports wide supply voltage operation from 1.8 V to 5.5 V for flexible system integration

I/o Expanders Applications

• Portable systems requiring extended I/O capabilities with limited pin counts
• Industrial control environments utilizing SMBus protocols
• Consumer electronics needing remote input/output expansion

I/o Expanders Procurement Notes

Verify the specific suffix CDGVR against the manufacturer's official datasheet to confirm the TSSOP-24 package and industrial temperature grade. Ensure compatibility with the target I2C address configuration and voltage levels before procurement. Cross-reference the part number with authorized distributors to confirm current production status and authenticity.

I/o Expanders Selection Notes

Select this component when a 16-bit I/O expansion solution is required over the I2C bus. It is suitable for designs needing interrupt-driven notifications rather than continuous polling. Consider the TSSOP-24 package constraints and the 1.8 V to 5.5 V operating range during schematic design. Verify that the system voltage levels align with the expander's input thresholds.

I/o Expanders Part Context

The PCF8575CDGVR belongs to the PCF8575 family of 16-bit I/O expanders from Texas Instruments. This series is designed for remote I/O expansion using the I2C protocol. The CDGVR variant specifically denotes the TSSOP-24 package and industrial temperature rating, distinguishing it from other package options like SOIC or QFN available within the same functional family.

I/o Expanders Replacement Considerations

PCF8575CDWR: Alternative package variant (SOIC-24) with identical electrical characteristics. PCA9535PW: Similar 16-bit I2C expander but includes configuration registers for pin direction setting.