PCA6107DWR

I/o Expanders Overview

The PCA6107DWR is an 8-bit I2C and SMBus low-power I/O expander 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 is housed in an 18-pin SOIC (DW) package with a tape-and-reel configuration. It functions as a remote I2C-to-parallel port expander, providing general-purpose input and output capabilities for embedded systems requiring extended digital interface lines.

I/o Expanders Feature Summary

• Provides remote general-purpose I/O expansion via I2C and SMBus protocols
• Includes dedicated interrupt output, reset functionality, and configuration registers
• Supports low-power operation across a wide voltage range

I/o Expanders Applications

• Remote I/O expansion in embedded control systems
• I2C to parallel port interfacing applications
• Low-power consumer electronics requiring additional GPIO lines

I/o Expanders Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'DWR' matches the required 18-pin SOIC tape-and-reel packaging. Check current production status as this part may be obsolete; validate substitute availability if new procurement is required.

I/o Expanders Selection Notes

Select this component when an 8-bit remote I/O expander is needed with I2C/SMBus compatibility. Ensure the system voltage falls within the 2.3 V to 5.5 V range. Consider the 18-pin SOIC package constraints and thermal requirements for the intended application environment.

I/o Expanders Part Context

The PCA6107 series belongs to Texas Instruments' family of I/O expanders designed for low-power applications. The 'DWR' suffix specifically denotes the 18-pin Small Outline Integrated Circuit (SOIC) package type with tape-and-reel delivery, distinguishing it from other package variants like DIP or QFN.

I/o Expanders Replacement Considerations

Public sources indicate the PCA6107DWR is obsolete. Verify compatible substitutes such as the PCA6107G4 or equivalent I/O expanders from other manufacturers that match the 8-bit capacity, I2C interface, and 18-pin SOIC form factor.

I/o Expanders FAQ

What is the maximum operating speed of the PCA6107DWR?

The device supports I2C and SMBus communication speeds up to 400 kHz.

Does the PCA6107DWR include interrupt capability?

Yes, the device features a dedicated interrupt output pin to signal data changes to the host processor.