SN74CBTLVR16292VR

Overview

The SN74CBTLVR16292 is a 12-bit 1-of-2 high-speed FET multiplexer/demultiplexer from the Widebus family. It operates on a single supply voltage ranging from 2.3V to 3.6V and supports an operating temperature range of -40°C to 85°C. The device features rail-to-rail switching, internal 500-Ω pulldown resistors, and equivalent 25-Ω series resistors at input/output ports. Propagation delay (tpd) between data ports ranges from 0.15ns to 0.25ns depending on VCC. Latch-up performance exceeds 250mA per JESD 17.

Feature Summary

• Supports partial-power-down mode operation via Ioff feature to prevent backflow current
• Includes make-before-break functionality for seamless signal routing transitions
• Integrates internal 500-ohm pulldown resistors and 25-ohm series resistors to minimize external component requirements

Applications

• Partial-power-down applications requiring isolation during power off
• High-speed data routing in systems utilizing low-voltage logic
• Signal switching environments requiring minimal propagation delay

Procurement Notes

Verify the specific package suffix against the datasheet ordering information to ensure correct physical dimensions and pinout compatibility. Confirm that the selected variant matches the required tape and reel or tube packaging specifications for your assembly process. Ensure design compliance with the recommended operating conditions regarding supply voltage and control input thresholds.

Selection Notes

Select this component when designing circuits that require 12-bit multiplexing within a 2.3V to 3.6V supply range. Consider the TVSOP, TSSOP, or SSOP packages based on available board space and thermal constraints. Verify that the system's control logic levels align with the specified VIH and VIL thresholds for reliable switching operation.

Part Context

This device belongs to Texas Instruments' Widebus family of high-speed FET switches. It is designed to provide efficient signal routing with low on-state resistance. The part is functionally similar to other 12-bit mux/demux devices but is optimized for lower voltage operation compared to standard 5V logic families.

Replacement Considerations

SN74CBTLVR16292GR

FAQ

How does the Ioff feature benefit the circuit?

The Ioff feature ensures that damaging current will not backflow through the device when it is powered down, providing necessary isolation.

What is the purpose of the internal series resistors?

The input/output ports include equivalent 25-ohm series resistors to reduce overshoot and undershoot, eliminating the need for external resistors.