SN74CBTLV3861DWR

Overview

The SN74CBTLV3861DWR is a low-voltage 10-bit FET bus switch manufactured by Texas Instruments. It operates within a supply voltage range of 2.3 V to 3.6 V and supports an operating temperature range from -40°C to 85°C. The device features rail-to-rail switching on data I/O ports, ensuring full signal swing capability. It includes an Ioff feature that supports partial-power-down mode operation by preventing damaging current backflow when the device is powered down. The package type is SOIC with 24 pins.

Feature Summary

• Provides ten bits of high-speed bus switching with low on-state resistance for minimal propagation delay.
• Supports partial-power-down applications through the Ioff feature, which ensures isolation during power off.
• Features a flow-through architecture designed to optimize printed circuit board layout.

Applications

• Partial-power-down mode operations
• High-speed bus switching circuits
• Low-voltage digital signal routing

Procurement Notes

Verify the specific ordering suffix 'DWR' corresponds to the tape and reel packaging format in the official Texas Instruments Package Option Addendum. Confirm the RoHS status and lead finish details match project requirements. Ensure the moisture sensitivity level rating aligns with the assembly process capabilities. Cross-reference the active production status with the latest manufacturer documentation before finalizing procurement.

Selection Notes

Select this component for designs requiring low-voltage operation between 2.3 V and 3.6 V. The device is suitable for applications needing rail-to-rail switching and bidirectional data transfer. Consider the SOIC-24 package dimensions for PCB footprint constraints. Verify that the control input voltage levels meet the VIH and VIL specifications for the chosen supply voltage.

Part Context

This part belongs to the SN74CBTLV3861 family of low-voltage FET bus switches. It provides a cost-effective solution for connecting buses in systems where power consumption and signal integrity are critical. The device is distinct from higher-voltage counterparts like the SN74CBT3861, which operate at different supply ranges.

Replacement Considerations

SN74CBTLV3861DW (Tube) offers identical electrical characteristics but differs in packaging format.

FAQ

How does the Ioff feature function?

The Ioff feature ensures that damaging current will not backflow through the device when it is powered down, providing isolation during power-off states.

What is the recommended control input configuration during power-up or power-down?

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor.