SN74CBT3245ARGYR

Overview

The SN74CBT3245ARGYR is an octal FET bus switch manufactured by Texas Instruments, housed in a 20-pin VQFN package. It operates within a supply voltage range of 4V to 5.5V and supports an operating temperature from -40°C to 85°C. The device features a maximum on-state resistance of 7 ohms at VCC=4.5V with II=64mA, and a typical propagation delay of 0.25ns at VCC=5V with CL=50pF. Control inputs are TTL-compatible with VIH min of 2V and VIL max of 0.8V.

Feature Summary

• Provides eight bits of high-speed TTL-compatible bus switching
• Features low on-state resistance for minimal propagation delay
• Standard '245-type pinout configuration

Applications

• High-speed data bus switching applications
• Portable systems requiring low power consumption
• Battery-powered equipment

Procurement Notes

Verify the specific ordering suffix RGY corresponds to the VQFN package type before procurement. Confirm that the component status aligns with current production requirements, as datasheet addendums may indicate lifecycle changes. Ensure compatibility with standard surface-mount assembly processes for the specified package dimensions.

Selection Notes

Select this component when an octal bus switch with standard '245 pinout is required. It is suitable for designs needing low on-resistance and fast switching speeds within a 4V to 5.5V supply range. Consider the VQFN package constraints regarding thermal management and board space availability compared to other available packages.

Part Context

This part belongs to the SN74CBT3245A family of octal FET bus switches. It shares functional characteristics with other variants in the series, differing primarily in package style such as SOIC, SSOP, or TSSOP. The RGY suffix specifically denotes the VQFN package option.

Replacement Considerations

Other SN74CBT3245A variants with different package suffixes (e.g., ADW, APW) are functionally equivalent but require footprint adjustments.