SN74CBTD3861PWR

Overview

The SN74CBTD3861PWR is a low-voltage 10-bit FET bus switch manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features an active-low enable control type. The device supports bidirectional data transfer and includes level shifting capabilities. It is housed in a 24-TSSOP package with a maximum on-resistance of 7 ohms and a propagation delay of up to 350 ps. The component functions as a digital bus driver suitable for surface-mount applications across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates ten independent FET switches for high-density bus interfacing
• Provides automatic level shifting between different voltage domains
• Supports bidirectional signal transmission with low on-resistance
• Features active-low enable logic for straightforward control integration

Applications

• High-speed data bus switching in portable electronic devices
• Level translation between 5V and lower voltage logic systems
• Memory bus expansion and configuration circuits
• Signal routing in industrial control modules

Procurement Notes

Verify the specific suffix 'PWR' corresponds to the TSSOP-24 package and reel packaging format when sourcing. Confirm that the lead time aligns with manufacturer schedules, as standard delivery periods may vary based on production volume. Ensure compliance with RoHS directives and check for any recent product change notices affecting material composition or pinout definitions prior to final procurement authorization.

Selection Notes

Select this component when a single-package solution for ten bidirectional channels is required alongside integrated level shifting functionality. The 7-ohm on-resistance offers efficient signal transmission for moderate current loads. Consider the 24-TSSOP footprint for space-constrained PCB layouts where surface-mount technology is preferred over through-hole alternatives for improved thermal performance and assembly automation.

Part Context

This part belongs to the SN74CBT series of low-voltage bus switches designed for high-speed data routing. Unlike the LV variant which operates at lower voltages, this TD version targets 5V systems. It serves as a critical interface element in mixed-voltage environments, allowing seamless communication between legacy 5V peripherals and modern lower-voltage processors without external translation components.

Replacement Considerations

• SN74CBTLV3861PWR