SN74CBT3861DGVR

Overview

The SN74CBT3861DGVR is a 10-bit FET bus switch manufactured by Texas Instruments, designed for high-speed TTL-compatible data transmission. It operates on a single power supply ranging from 2.7V to 3.6V and features an active-low output enable (OE) input to control connectivity between Port A and Port B. The device utilizes a 24-pin TVSOP package with a maximum width of 5.8mm, suitable for surface-mount applications. It supports low on-state resistance and offers robust ESD protection exceeding ±2kV per IEC standard, ensuring reliable signal integrity in portable and battery-powered systems.

Feature Summary

• Provides ten bits of high-speed bus switching with TTL-compatible logic levels
• Features low on-state resistance to minimize signal attenuation across the switch path
• Includes active-low output enable functionality for precise control of data flow direction
• Offers enhanced electrostatic discharge protection compliant with IEC standards

Applications

• Portable equipment requiring efficient power management and signal routing
• Battery-powered consumer electronics utilizing low-voltage logic interfaces
• High-density data buses in compact mobile devices and handheld instruments
• System-level interconnects needing isolated signal paths with minimal insertion loss

Procurement Notes

Verify that the specific DGVR suffix corresponds to the TVSOP-24 package variant rather than other packaging options like DWR or PWR. Confirm the voltage range requirements align with the 2.7V to 3.6V specification before integration. Ensure that the design accounts for the active-low OE pin configuration to prevent unintended bus activation during power-up states.

Selection Notes

Select this component when a 10-bit wide bus switch is required within a 3.3V logic environment. The TVSOP package is ideal for space-constrained designs compared to larger SOIC variants. Consider the propagation delay characteristics if timing constraints are critical for the specific application interface. Evaluate the ESD protection levels against the environmental exposure risks of the final product deployment.

Part Context

This part belongs to the SN74CBT series of bus switches, which are optimized for low-voltage operation and high-speed performance. It serves as a digital interconnect solution within Texas Instruments' broader portfolio of signal switching components. The device complements other members of the family by providing a specific 10-bit configuration tailored for parallel data lines in modern electronic architectures.

Replacement Considerations

The SN74CBTLV3861PWR is listed as a manufacturer-recommended alternative. Verify compatibility regarding package type and voltage specifications before substitution. Ensure that any replacement maintains the same 10-bit architecture and functional behavior to preserve system integrity.