PCF8575DGVR

I/o Expanders Overview

The PCF8575DGVR 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 bus interface, utilizing two hardware address pins to allow up to eight devices on a single bus. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports clock frequencies up to 400 kHz. It features an interrupt output pin that signals when an input state changes. The component is housed in a 24-pin TSSOP package with a junction temperature range of -40°C to +85°C.

I/o Expanders Feature Summary

• Provides 16-bit I/O expansion through standard I2C and SMBus communication protocols
• Includes dedicated interrupt output functionality to notify the host of input state changes
• Supports multiple device addressing on a single bus using hardware address pins

I/o Expanders Applications

• Embedded systems requiring additional GPIO ports for sensor interfacing
• Industrial control panels needing extended input/output capabilities
• Consumer electronics designs with limited microcontroller pin availability

I/o Expanders Procurement Notes

Verify the specific suffix DGVR against the official Texas Instruments datasheet to confirm the tape and reel packaging configuration and moisture sensitivity level. Ensure the ordering part number matches the required package type and operating temperature range for your specific application environment before finalizing procurement.

I/o Expanders Selection Notes

Select this component when a design requires expanding I/O capacity over a serial bus without adding complex parallel interfaces. Consider the open-drain output structure and current drive limitations when connecting loads. Verify that the system voltage levels are compatible with the 2.5 V to 5.5 V operating range and that the I2C bus speed requirements do not exceed 400 kHz.

I/o Expanders Part Context

This part belongs to the PCF8575 family of 16-bit I/O expanders from Texas Instruments. It shares core functional specifications with variants such as the PCF8575DWR and PCF8575PW, differing primarily in package style and shipping format. The DGVR suffix specifically denotes the TSSOP-24 package delivered in tape and reel form for automated assembly processes.

I/o Expanders Replacement Considerations

Direct pin-to-pin replacements within the same manufacturer include PCF8575DWR and PCF8575PW. Cross-manufacturer alternatives like the PCA9535 or PCA9555 offer similar functionality but may require verification of register compatibility and electrical characteristics.