PCA6107DW

I/o Expanders Overview

The PCA6107DW is a remote 8-bit I2C and SMBus low-power I/O expander manufactured by Texas Instruments. It operates within a voltage range of 2.3 V to 5.5 V on the VCC supply. The device provides eight general-purpose parallel I/O ports accessible via the I2C bus, facilitating interface expansion in systems requiring additional digital inputs or outputs. It supports standard and fast-mode I2C communication protocols up to 400 kHz. The component is housed in an 18-pin SOIC package, designated by the 'DW' suffix, suitable for surface-mount applications.

I/o Expanders Feature Summary

• Provides remote 8-bit general-purpose I/O expansion via I2C and SMBus interfaces
• Includes dedicated interrupt output pin for efficient event-driven communication
• Features integrated reset functionality to ensure defined initial states
• Supports operation across a wide supply voltage range from 2.3 V to 5.5 V

I/o Expanders Applications

• I2C to parallel port expander operations
• Remote input/output monitoring in embedded systems
• Low-power consumer electronics interface expansion

I/o Expanders Procurement Notes

Verify the specific package variant against project requirements, as the DW suffix indicates an 18-pin SOIC form factor. Confirm that the target system's I2C bus voltage levels are compatible with the 2.3 V to 5.5 V operating range. Ensure that the design accounts for the interrupt output polarity and reset pin configuration as specified in the official datasheet to guarantee correct initialization and signal integrity during operation.

I/o Expanders Selection Notes

Select this component when a system requires additional digital I/O lines beyond the primary controller's capabilities without increasing pin count complexity. It is suitable for applications needing remote I/O expansion over short distances using standard I2C wiring. Consider the power consumption characteristics and the need for interrupt-driven polling efficiency. Verify that the 18-pin SOIC package fits the available PCB footprint and manufacturing constraints.

I/o Expanders Part Context

The PCA6107 series belongs to Texas Instruments' portfolio of low-power I/O expanders designed for I2C and SMBus compatibility. These devices simplify system architecture by allowing microcontrollers to control multiple peripherals through a two-wire serial interface. The PCA6107 specifically addresses the need for remote I/O handling in space-constrained designs, offering a compact solution for expanding digital connectivity in various electronic assemblies.

I/o Expanders Replacement Considerations

Public confirmed substitute part numbers are not explicitly documented in the provided source material. Consult Texas Instruments documentation or authorized distributors for verified cross-reference data before substitution.