SN74CBT3244PW

Overview

The SN74CBT3244PW is an octal FET bus switch manufactured by Texas Instruments, designed for bidirectional data transmission. It operates within a supply voltage range of 2.3V to 3.6V and features a 20-pin TSSOP package. The device provides low on-resistance and supports high output drive currents up to 128mA. It functions as a single circuit element with an 8 x 1:1 configuration, suitable for applications requiring efficient signal routing in portable and battery-powered systems.

Feature Summary

• Octal FET bus switch architecture enabling bidirectional data flow across eight independent channels
• Low on-resistance design minimizes signal attenuation during transmission
• High output drive capability supports direct interfacing with various logic families
• Compatible with standard surface mount assembly processes

Applications

• Portable equipment requiring low power consumption
• Battery-powered consumer electronics
• Data acquisition systems
• Communication modules

Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-20 package variant when sourcing. Confirm the operating voltage range aligns with the 2.3V to 3.6V specification for your target application. Ensure compatibility with the CB3T logic series requirements. Check for RoHS compliance status relevant to your manufacturing region. Validate that the single-element configuration meets your channel count needs.

Selection Notes

Select this component when an octal bus switch is required for bidirectional data transfer between different voltage domains or system segments. The SN74CBT3244PW is appropriate for designs prioritizing low on-resistance and high drive strength within a 3.6V maximum supply constraint. Consider the TSSOP-20 package for space-constrained PCB layouts. Compare against similar CB3T family members if higher voltage tolerance or different pin counts are necessary.

Part Context

This part belongs to the Texas Instruments SN74CB3T3245/CBT3244 family of octal FET bus switches. These devices are engineered for high-speed data switching in portable and battery-operated applications. The family shares common architectural features but varies in package options and specific electrical characteristics such as on-resistance and drive current capabilities.

Replacement Considerations

SN74CBT3244PWR is a reel-based alternative with identical electrical specifications. SN74CBT3245CDBR offers similar functionality in an SSOP-20 package. Verify pinout compatibility before substituting with other octal bus switches from the CB3T series.