SN74CBTLV3861NSR

Overview

The SN74CBTLV3861NSR 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 a maximum on-state resistance of 40 Ohms and a maximum propagation delay of 250 ps. It utilizes a single OE control input for enabling or disconnecting the bus, with a typical quiescent current of 10 µA.

Feature Summary

• Supports partial-power-down mode via Ioff feature to prevent damaging backflow currents during power-off states
• Rail-to-rail switching capability on data I/O ports ensures full signal integrity across the operating voltage range
• Flow-through architecture optimizes printed circuit board layout efficiency

Applications

• High-speed bus switching in portable electronic devices
• Partial-power-down applications requiring isolation during power off
• Low-voltage digital logic level translation and routing

Procurement Notes

Verify that the ordering suffix NSR corresponds specifically to the SOP package type and tape-and-reel carrier configuration as listed in the official TI ordering information. Confirm RoHS compliance and lead finish specifications match project requirements before finalizing procurement orders.

Selection Notes

Select this component when a 10-bit bidirectional bus switch is required for low-voltage systems operating between 2.3 V and 3.6 V. Ensure the design accommodates the specific SOP-24 package dimensions and thermal characteristics defined in the datasheet for reliable operation within the specified industrial temperature range.

Part Context

This part belongs to the SN74CBTLV3861 family of low-voltage bus switches. It provides ten bits of high-speed switching functionality organized as a single 10-bit bus switch. The device is designed for applications requiring minimal propagation delay and low on-state resistance in compact surface-mount packages.

Replacement Considerations

SN74CBTLV3861DW (SOIC Package)

FAQ

How does the device handle partial-power-down scenarios?

The device includes an Ioff feature that ensures no damaging current backflows through the switch when it is powered down, providing effective isolation during power-off states.

What is the function of the OE pin?

When the Output Enable (OE) pin is low, the 10-bit bus switch connects Port A to Port B. When OE is high, the switch opens, creating a high-impedance state between the two ports.