SN74CB3T3245DGVR

Overview

The SN74CB3T3245DGVR is an octal FET bus switch manufactured by Texas Instruments, designed for low-voltage applications. It operates within a supply voltage range of 2.3V to 3.6V and features bidirectional data transmission across eight channels. The device incorporates a 5-V tolerant level shifter, allowing compatibility with higher voltage interfaces while maintaining low power consumption. Packaged in a 20-pin TVSOP format, it supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Bidirectional signal path translation between low-voltage domains
• Integrated 5-V tolerant level shifting capability
• Powered-off protection prevents leakage current flow

Applications

• Low-voltage bus switching in portable electronics
• Signal path translation between different voltage domains
• Battery-powered devices requiring powered-off protection

Procurement Notes

Verify the specific suffix DGVR confirms the TVSOP-20 package and tape-and-reel orientation. Confirm RoHS compliance status and lead-free designation against the manufacturer's latest datasheet revision. Ensure the component matches the CB3T logic family specifications for the intended voltage range.

Selection Notes

Select this component when bidirectional switching is required between 2.5V or 3.3V systems and 5V-tolerant interfaces. The integrated level shifter simplifies design by eliminating external translation circuits. Consider the TVSOP package constraints for PCB layout and thermal management requirements.

Part Context

This part belongs to the SN74CB3T3245 series of octal bus switches. It shares functional similarities with other members like SN74CB3T3245PW but differs in packaging. The CB3T series focuses on high-speed, low-power switching for mobile and consumer applications.

Replacement Considerations

SN74CB3T3245PW (TSSOP-20 package variant). Verify pinout compatibility and package dimensions before substitution.