SN74CBT3244PWRE4

Overview

The SN74CBT3244PWRE4 is an octal FET bus switch manufactured by Texas Instruments. It operates within a voltage range of 2.7 V to 5.5 V and supports bidirectional data transmission. The device utilizes a 20-TSSOP package with a junction temperature range spanning from -40°C to +85°C. It features TTL-compatible inputs and low on-resistance characteristics suitable for high-speed signal routing.

Feature Summary

• Octal configuration providing eight independent bidirectional switching channels
• Low on-resistance design optimized for minimal signal attenuation
• TTL-compatible input logic levels for broad system integration
• Single-supply operation supporting standard digital logic voltages

Applications

• Portable equipment requiring efficient power management
• Consumer electronics utilizing high-density interconnects
• Computing systems needing reliable data bus isolation
• Telecommunications infrastructure components

Procurement Notes

Verify the specific suffix RE4 confirms RoHS compliance and lead-free status as per manufacturer specifications. Confirm the TSSOP-20 package dimensions match your PCB footprint requirements. Ensure the operating temperature range aligns with your environmental constraints. Cross-reference the datasheet revision history for any recent parameter updates before finalizing procurement orders.

Selection Notes

Select this component when an octal bus switch is required for bidirectional data routing in portable or consumer applications. The wide supply voltage range allows compatibility with both 3.3 V and 5 V logic domains. Consider the TSSOP package size relative to available board space. Verify that the propagation delay and on-resistance meet your specific signal integrity requirements for the target application frequency.

Part Context

This part belongs to the Texas Instruments 74CBT series of bus switches, designed for low-voltage, high-speed applications. The CBT family focuses on minimizing insertion loss while maintaining signal integrity across multiple channels. This specific variant integrates eight switches into a single compact package, offering a space-efficient solution for complex digital systems requiring multiple isolated data paths.

Replacement Considerations

Direct replacements include SN74CBT3244PWR and SN74CBT3244PW. Alternative packages such as SN74CBT3244DBR or SN74CBT3244DGVR offer different form factors but maintain functional equivalence. Verify pinout compatibility and thermal performance when substituting with these variants.