PCA9539DGVR

I/o Expanders Overview

The PCA9539DGVR is a 16-bit I/O expander designed for I2C and SMBus communication, manufactured by Texas Instruments. It operates within a supply voltage range of 2.3 V to 5.5 V and supports clock frequencies up to 400 kHz. The device features an interrupt output capability and includes configuration registers, an interrupt pin, and a reset pin. It is housed in a VQFN-24 surface-mount package and functions reliably across an operating temperature range from -40°C to +85°C.

I/o Expanders Feature Summary

• Provides 16-bit general-purpose I/O expansion via standard I2C and SMBus interfaces.
• Includes dedicated interrupt output functionality to signal state changes to the host processor.
• Integrates configuration registers allowing individual pin direction control.
• Features a hardware reset pin for system initialization and recovery.

I/o Expanders Applications

• Portable devices requiring additional GPIO pins within limited space constraints.
• Industrial control systems utilizing I2C-based monitoring and actuation.
• Consumer electronics needing low-power input/output expansion solutions.

I/o Expanders Procurement Notes

Verify the specific suffix DGVR corresponds to the VQFN-24 tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to integration into regulated products. Ensure the component meets the required humidity sensitivity level specifications for your assembly process.

I/o Expanders Selection Notes

Select this component when a 16-bit I/O solution is required with I2C connectivity. Compare against the PCA9538 if only 8 bits are needed, or the PCA9535 for alternative pinout configurations. Verify that the VQFN-24 package footprint aligns with the PCB design constraints and thermal requirements of the target application environment.

I/o Expanders Part Context

This part belongs to the Texas Instruments PCA9539 series of low-power I/O expanders. It shares functional similarities with the TCA9539 but differs in voltage tolerance and feature set. The DGVR suffix specifically denotes the VQFN-24 package variant supplied in reel format, distinguishing it from tube-packaged versions like the DB or PWR alternatives.

I/o Expanders Replacement Considerations

The TCA9539RGER serves as a compatible alternative within the same family, offering similar 16-bit I/O expansion capabilities. Verify pin compatibility and electrical specifications before substitution. Other potential replacements include the PCA9535DWR for comparable functionality in different package styles.