74CB3Q3125DBQRE4

Overview

The SN74CB3Q3125DBQRE4 is a quadruple FET bus switch from the Texas Instruments SN74CB3Q3125 family. It operates within a VCC range of 2.3V to 3.6V and supports data I/O voltages up to 5.5V. The device features four independent 1-bit switches with separate output-enable inputs, utilizing a charge pump for low on-state resistance (typical 4Ω). It provides high-bandwidth data paths up to 500MHz, bidirectional data flow, and near-zero propagation delay.

Feature Summary

• High-bandwidth data path supporting frequencies up to 500MHz
• Rail-to-rail switching capability across supported voltage levels
• Low input/output capacitance minimizes signal distortion
• Ioff circuitry enables partial-power-down mode operation

Applications

• USB interface connections
• Differential signal interfaces
• Bus isolation circuits
• Optical networking equipment
• Video over fiber transmission systems

Procurement Notes

Verify the specific package configuration matches the DBQ designation before procurement. Confirm that the ordering suffix aligns with the required reel quantity and moisture sensitivity level ratings. Ensure the component meets RoHS compliance standards as specified in the manufacturer's documentation.

Selection Notes

Select this component when designing systems requiring high-speed signal routing with minimal distortion. The device is suitable for applications needing 5V tolerant I/Os while operating at lower supply voltages. Consider the SSOP-16 package constraints regarding thermal dissipation and PCB layout requirements.

Part Context

This part belongs to the SN74CB3Q3125 series, which includes variants in TSSOP, TVSOP, and VQFN packages. The DBQ suffix specifically identifies the 16-pin SSOP package option. Other members of the family share identical electrical characteristics but differ in physical footprint and pin count configurations.

Replacement Considerations

SN74CB3Q3125DBQR