SN74CBTLV3245AGQNR

Overview

The SN74CBTLV3245AGQNR is a low-voltage octal FET bus switch manufactured by Texas Instruments. It provides eight bits of high-speed bus switching in a standard '245 device pinout. The device operates within a supply voltage range of 2.3 V to 3.6 V and supports an operating free-air temperature from -40°C to 85°C. It features a typical on-state resistance of 5 Ω, ensuring minimal propagation delay. The component includes ESD protection exceeding JESD 22 standards and latch-up performance exceeding 250 mA per JESD 17.

Feature Summary

• Provides eight bits of high-speed bus switching with standard '245-type pinout
• Supports partial-power-down mode operation via Ioff feature to prevent backflow current
• Features rail-to-rail switching on data I/O ports for efficient signal transmission
• Includes robust ESD protection and high latch-up performance ratings

Applications

• Partial-power-down applications requiring isolation during power off
• High-speed bus switching between ports A and B
• Low-voltage digital circuit interfacing

Procurement Notes

Verify the specific package type and tape-and-reel configuration when ordering, as suffixes indicate distinct physical forms. Confirm RoHS compliance status and moisture sensitivity level requirements against your manufacturing process specifications. Ensure the active status of the part number matches current design-in recommendations from the manufacturer.

Selection Notes

Select this component for designs requiring low on-state resistance and fast switching speeds in low-voltage environments. Consider the standard '245 pinout compatibility if replacing legacy components. Evaluate the Ioff capability if the system requires safe disconnection during partial power-down states without damaging currents.

Part Context

This component belongs to the SN74CBTLV3245A series of low-voltage octal FET bus switches. It is designed to replace standard '245 buffers with lower resistance switches. The series offers various package options including QFN, SOIC, SSOP, TSSOP, and TVSOP to suit different board space and thermal requirements.

Replacement Considerations

SN74CBTLV3245ARGYR is a confirmed substitute part number within the same family offering identical functionality in a QFN package.