SN74CBT3251PWR

Overview

The SN74CBT3251PWR is a single FET multiplexer/demultiplexer from the Texas Instruments SN74CBT3251 series. It provides an 8:1 configuration in a 16-pin SOIC-Narrow package. The device operates on a single supply voltage ranging from 4 V to 5.5 V, with a typical operating voltage of 5 V. Key electrical specifications include a maximum on-resistance of 14 Ohms, a maximum propagation delay of 6.4 ns, and a maximum isolation time of 6.8 ns. It supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Provides high-speed signal routing through a single 8-to-1 channel configuration.
• Features low on-resistance for minimal signal attenuation across the conductive path.
• Designed for operation with standard 5 V logic systems.

Applications

• Data acquisition systems requiring analog or digital signal selection
• Communication equipment for bus switching applications
• Industrial control systems utilizing multiplexed data lines

Procurement Notes

Verify that the specific part number matches the required 16-pin SOIC-Narrow package and 5 V operating voltage range. Confirm RoHS compliance status and moisture sensitivity level requirements against the project specifications before ordering. Ensure the supplier provides valid traceability documentation for the Texas Instruments manufacturer source.

Selection Notes

Select this component when a 5 V supply environment requires an 8-channel multiplexer with moderate speed performance. Compare the 14 Ohm on-resistance and 6.4 ns delay against system timing budgets. Consider alternative packages such as VQFN if board space constraints exist, though pin compatibility differs.

Part Context

This device belongs to the SN74CBT3251 family of FET multiplexers manufactured by Texas Instruments. It serves as a digital signal switch solution distinct from lower-voltage variants like the CBTLV series or automotive-grade Q1 parts. The PWR suffix specifically denotes the TSSOP/SOIC surface-mount packaging format used in general-purpose electronics.

Replacement Considerations

SN74CBT3251PWRE4 is a verified equivalent variant within the same product line offering identical functionality and pinout.