TCA8418EYFPR

Specialized Overview

The TCA8418EYFPR is an I2C-controlled keypad scan integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 1.65V to 3.6V and supports I2C and SMBus communication protocols with a clock frequency up to 1MHz. The device features an integrated ESD protection structure and is housed in a 25-DSBGA surface-mount package. Designed for low-power applications, it serves as a specialized interface component for scanning keypads in portable electronic devices.

Specialized Feature Summary

• I2C and SMBus compatible serial interface for system integration
• Integrated electrostatic discharge (ESD) protection
• Low-voltage operation suitable for battery-powered systems

Specialized Applications

• Personal Digital Assistants (PDA)
• Portable audio and video players
• Smartphones

Specialized Procurement Notes

Verify the specific suffix 'EYFPR' against the manufacturer's official datasheet to confirm the 25-DSBGA package type and tape-and-reel shipping configuration. Ensure that the I2C address settings and pin configurations match the target design requirements before finalizing procurement orders.

Specialized Selection Notes

Select this component when a dedicated keypad scanner with I2C connectivity is required for mobile devices. Consider the 25-DSBGA footprint constraints and the 1.65V to 3.6V operating voltage range during schematic design. Verify compatibility with the host processor's I2C bus speed and voltage levels.

Specialized Part Context

This part belongs to the TCA8418 family of keypad scan ICs from Texas Instruments. The base model TCA8418 provides the core functionality, while the TCA8418E variant includes enhanced specifications or revisions. The TCA8418EYFPR specifically denotes the version packaged in a 25-DSBGA format for compact portable electronics.

Specialized Replacement Considerations

Direct substitutes include other parts within the TCA8418 family, such as the TCA8418RTWRG4, provided the package and electrical parameters are compatible. Cross-reference with similar keypad encoder ICs from other manufacturers only if interface and pinout differences are accounted for.