SN74CBT3244DBQR

Overview

The SN74CBT3244DBQR is an octal FET bus switch manufactured by Texas Instruments. It operates within a supply voltage range of 1.65 V to 3.6 V and supports bidirectional data transmission across eight independent channels. The device utilizes a 20-pin TSSOP package and is rated for an operating temperature range from -40°C to +85°C. Designed for low-voltage applications, it provides high-speed signal switching with minimal insertion loss.

Feature Summary

• Octal configuration providing eight independent bidirectional bus switches
• Low on-resistance for efficient signal transmission
• Compatible with standard logic families including TTL and CMOS
• Single enable pin controls all channels simultaneously

Applications

• Portable consumer electronics requiring low power consumption
• High-speed data routing in communication systems
• Memory card interfaces and storage devices
• Battery-powered mobile equipment

Procurement Notes

Verify the specific suffix DBQR corresponds to the 20-pin TSSOP package and reel packaging format. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering part number matches the exact voltage and temperature ratings specified in the official datasheet to avoid functional mismatches.

Selection Notes

Select this component when designing circuits that require multiple bidirectional data paths in a compact form factor. The low voltage operation makes it suitable for modern portable devices. Consider the package size constraints and thermal management needs relative to the board layout. Verify interface compatibility with the source and destination logic levels before integration.

Part Context

This part belongs to the Texas Instruments 74CBT series of bus switches. These components are designed to replace mechanical relays and discrete transistor switches in digital systems. The series offers various configurations to handle different channel counts and voltage levels for signal routing applications.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family or other manufacturers offering similar octal bus switches. Verify electrical parameters such as on-resistance and propagation delay match the original design requirements.