SN74CBT3244PWRG4

Overview

The SN74CBT3244PWRG4 is an octal FET bus switch manufactured by Texas Instruments. It operates within a voltage range of 4.5 V to 5.5 V and supports bidirectional data transmission across eight independent channels. The device utilizes a 20-pin TSSOP package and is designed for surface-mount applications. It functions as a low-voltage bus driver with TTL-compatible inputs, ensuring reliable signal integrity in digital systems.

Feature Summary

• Octal configuration providing eight independent bidirectional bus switches
• Low on-resistance characteristics for efficient signal transmission
• TTL-compatible input logic levels for broad compatibility
• Surface-mount packaging optimized for automated assembly

Applications

• Portable equipment requiring low power consumption
• Consumer electronics utilizing high-density interconnects
• Computing products needing efficient bus switching
• Telecommunications infrastructure components

Procurement Notes

Verify the specific suffix 'PWRG4' corresponds to the RoHS-compliant tape-and-reel variant in the TSSOP-20 package. Confirm that the ordering part number matches the exact pinout and electrical specifications required for the target design. Cross-reference the manufacturer's latest datasheet to ensure no recent design changes or obsolescence notices affect procurement validity.

Selection Notes

Select this component when an octal bus switch is required for 5V logic systems. Ensure the application demands bidirectional data flow and fits within the specified operating temperature range. Verify that the TSSOP-20 footprint aligns with the PCB layout constraints. Consider thermal management requirements associated with the selected package type during system integration.

Part Context

This device belongs to the SN74CBT3244 family of octal FET bus switches. The 'PWR' designation indicates a 20-pin thin-shrink small-outline package (TSSOP). The 'G4' suffix typically denotes a lead-free and RoHS-compliant manufacturing version. This series is engineered for low-voltage digital applications requiring high-speed data routing.

Replacement Considerations

Direct substitutes include other SN74CBT3244 variants such as SN74CBT3244DBR or SN74CBT3244DGVR, provided the package type matches the existing board design. Verify pin-to-pin compatibility before substitution. Alternative packages like PW or DB may require physical adapter solutions if the footprint differs.