SN74CBTLV3125NSR

Overview

The SN74CBTLV3125NSR is a low-voltage quadruple FET bus switch manufactured by Texas Instruments. It operates within a supply voltage range of 2.3 V to 3.6 V and supports data rates up to 600 Mbps. The device features four independent switches with active pull-down resistors on the control inputs to ensure defined logic states. It is housed in a 16-pin TSSOP package and functions across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates four independent single-pole single-throw (SPST) analog switches for flexible signal routing.
• Includes active pull-down resistors on control inputs to prevent floating states during power-up or initialization.
• Supports bidirectional data transmission with low on-resistance for minimal signal attenuation.

Applications

• Portable consumer electronics requiring low-power signal switching
• Battery-powered systems utilizing low-voltage logic interfaces
• Data acquisition systems needing isolated signal paths

Procurement Notes

Verify the specific suffix 'NSR' against the official Texas Instruments datasheet to confirm the tape-and-reel packaging configuration and lead-free status. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status before procurement.

Selection Notes

Select this component when designing circuits that require multiple independent signal paths operating at low voltages between 2.3 V and 3.6 V. The integrated active pull-down feature simplifies control logic design by eliminating the need for external resistors. Consider the TSSOP-16 package dimensions for PCB layout constraints and thermal management requirements in dense assemblies.

Part Context

This device belongs to the SN74CBT series of high-speed, low-voltage bus switches. It is designed to replace mechanical relays and other switching mechanisms in space-constrained applications. The series emphasizes low power consumption and fast switching speeds suitable for modern digital communication protocols.

Replacement Considerations

Consult the Texas Instruments selection guide for pin-compatible alternatives within the SN74CBTLV family. Verify electrical parameters such as on-resistance and propagation delay against the original design requirements before substituting with similar components from other manufacturers.