PCA9554DGVR

I/o Expanders Overview

The PCA9554DGVR is an 8-bit I/O expander manufactured by Texas Instruments, designed for I2C and SMBus communication interfaces. It operates within a supply voltage range of 2.3 V to 5.5 V and supports a maximum clock frequency of 400 kHz. The device features push-pull outputs capable of sourcing or sinking up to 10 mA (or 25 mA depending on specific configuration) and includes an interrupt output pin. It is housed in a 16-pin TVSOP package with a width of 4.40 mm. The component functions reliably across an operating temperature range of -40°C to +85°C.

I/o Expanders Feature Summary

• Supports I2C and SMBus serial communication protocols for system integration
• Provides configurable interrupt output capability for efficient event handling
• Includes internal configuration registers for flexible I/O direction control

I/o Expanders Applications

• Remote I/O expansion in embedded systems
• Consumer electronics requiring additional GPIO pins
• Industrial control panels needing interface extension

I/o Expanders Procurement Notes

Verify the exact datasheet revision and manufacturing date code upon order confirmation. Confirm RoHS compliance status and moisture sensitivity level requirements against your assembly process specifications. Ensure the TVSOP-16 footprint matches your PCB design guidelines before finalizing procurement decisions.

I/o Expanders Selection Notes

Select this component when an 8-bit I/O expander with push-pull outputs is required for I2C/SMBus applications. Consider the TVSOP-16 package constraints and the 2.3 V to 5.5 V supply voltage range. Verify that the 400 kHz clock speed meets your system timing requirements and that the interrupt functionality aligns with your controller's polling strategy.

I/o Expanders Part Context

This part belongs to the PCA9554 family of remote 8-bit I/O expanders. It shares functional similarities with variants like PCA9554DW and PCA9554DBR but differs in packaging. The DGVR suffix specifically denotes the TVSOP-16 tape and reel packaging format, distinguishing it from tube-packaged SOIC or SSOP versions within the same product line.

I/o Expanders Replacement Considerations

TCA9554ADWR is a recommended replacement offering similar functionality with a wider voltage range starting at 1.65 V. Verify pin compatibility and register mapping differences between the PCA9554 and TCA9554 families before substitution.