SN74CBT3245DWR

Overview

The SN74CBT3245DWR is an octal bus switch manufactured by Texas Instruments, designed for bidirectional data transmission. It operates within a supply voltage range of 4V to 5.5V and features a maximum on-resistance of 12 ohms. The device supports a propagation delay of up to 150 ps and functions reliably across an operating temperature range from -40°C to +85°C. Packaged in a 20-pin SSOP format, it offers low power consumption with a maximum supply current of 3 µA.

Feature Summary

• Octal configuration enabling simultaneous eight-channel bidirectional data switching
• Low on-resistance characteristic ensuring minimal signal attenuation during conduction
• Fast propagation delay supporting high-speed digital signal integrity
• Robust thermal performance suitable for extended industrial temperature environments

Applications

• High-density data routing in consumer electronics
• Signal path selection in portable computing devices
• Bus expansion interfaces in embedded systems
• Level shifting between different voltage domains in mixed-signal circuits

Procurement Notes

Verify the specific suffix DWR indicates the reel packaging variant when sourcing. Confirm the manufacturer part number matches exactly to ensure compatibility with design specifications. Check for RoHS compliance status as required by project regulations. Validate the package type against schematic footprints prior to procurement. Ensure storage conditions adhere to moisture sensitivity level requirements.

Selection Notes

Select this component when an octal bus switch is required for 5V logic systems. The SSOP-20 package suits applications needing compact surface-mount solutions. Consider the 12-ohm on-resistance for signal loss calculations. Verify that the 4V minimum supply voltage aligns with the system power rail. Evaluate the 150ps delay against timing constraints of the target application.

Part Context

This device belongs to the SN74CBT3245C series of digital bus switches. It serves as a low-voltage alternative to traditional transistor-transistor logic buffers. The series provides efficient data transfer capabilities for modern electronic designs requiring small form factors and low power operation.

Replacement Considerations

SN74CBT3245CDWR is a compatible reel-packaged variant from the same manufacturer family.