SN74CBTLV16292DLR

Overview

The SN74CBTLV16292DLR is a low-voltage 12-bit 1-of-2 FET multiplexer/demultiplexer manufactured by Texas Instruments. It operates on a single power supply ranging from 2.3 V to 3.6 V and supports an operating temperature range of -40°C to +85°C. The device integrates internal pull-down resistors on all data inputs to ensure defined logic states when disconnected. It is housed in a 56-pin SSOP package with a width of 0.295 inches (7.50 mm).

Feature Summary

• Integrates internal pull-down resistors on all data inputs to maintain defined logic levels during disconnection.
• Supports bidirectional signal transmission between two distinct buses using a single control line.
• Designed for low-voltage applications with operation down to 2.3 V.

Applications

• Portable equipment requiring low-power signal routing
• Battery-powered systems utilizing low-voltage logic
• Data bus switching in consumer electronics

Procurement Notes

Verify the specific suffix 'DLR' corresponds to the SSOP-56 tape and reel packaging configuration. Confirm that the required voltage range aligns with the 2.3 V to 3.6 V specification. Ensure the design accounts for the internal pull-down resistors on input lines. Check for RoHS compliance status relevant to the manufacturing date code.

Selection Notes

Select this component when a 12-bit wide multiplexing function is required within a low-voltage system architecture. It serves as a direct replacement for standard 5-V versions if the system voltage is reduced to the 3.3-V domain. Consider the 56-pin footprint constraints against available PCB real estate. Evaluate the need for internal pull-downs versus external components based on noise immunity requirements.

Part Context

This part belongs to the SN74CBT series, which focuses on low-voltage CMOS technology for high-speed switching applications. It shares functional similarities with the SN74CBT16292 but is optimized for lower supply voltages. The device complements other bus switches and level shifters in Texas Instruments' logic portfolio for system integration.

Replacement Considerations

SN74CBTLV16292DRG4

FAQ

What is the function of the internal pull-down resistors?

The internal pull-down resistors ensure that the data inputs remain at a defined logic low state when the device is not actively driven or connected to a source, preventing floating inputs.

Is the SN74CBTLV16292DLR suitable for 5-V logic interfaces?

No, the device is rated for a supply voltage range of 2.3 V to 3.6 V. Applying 5 V may exceed the absolute maximum ratings and damage the component.