SN74CBTLV3245AZQNR

Overview

The SN74CBTLV3245AZQNR 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 within a 20-VFBGA Microstar Junior package. The device operates with a supply voltage range of 2.3 V to 3.6 V and supports an operating free-air temperature range from -40°C to +85°C. It features rail-to-rail switching on data I/O ports and includes an output enable (OE) control input.

Feature Summary

• Provides isolation during power-off conditions to prevent damaging backflow current through the device when partially powered down.
• Features latch-up performance exceeding 250 mA per JESD 17 standards for enhanced reliability.
• Offers ESD protection capabilities that exceed JESD 22 specifications, including human-body and machine model ratings.

Applications

• Partial-power-down mode applications requiring port isolation
• Low-voltage bus switching systems
• High-speed data routing circuits

Procurement Notes

Verify the specific package type and marking code against the datasheet ordering information. Confirm the component status as obsolete or active before procurement planning. Ensure the source documentation matches the exact part number suffix to validate package and thermal characteristics.

Selection Notes

Select this component for designs requiring low-voltage operation between 2.3 V and 3.6 V. Consider the 20-VFBGA Microstar Junior package constraints for PCB layout. Verify compatibility with partial-power-down requirements if isolation during power-off is necessary for the system architecture.

Part Context

This component belongs to the SN74CBTLV3245A series of low-voltage octal FET bus switches. It shares functional similarities with other devices in the family but differs in packaging and specific electrical parameters based on the suffix. The AZQNR suffix indicates a specific package variant within this product line.

Replacement Considerations

SN74CBTLV3245ARGYR