SN74CBTS6800DW

Overview

The SN74CBTS6800DW is a 10-bit FET bus switch manufactured by Texas Instruments in a 24-pin SOIC package. It operates on a single supply voltage ranging from 4 V to 5.5 V, with a recommended operating temperature range of -40°C to +85°C. The device features TTL-compatible input levels and includes Schottky diodes on the I/Os to clamp undershoots up to -2 V. On-state resistance (ron) varies between 3 Ohms and 20 Ohms depending on voltage and current conditions. Propagation delay (tpd) is typically 0.25 ns at 5 V. The B port precharges to a user-selectable bias voltage (BIASV) via an equivalent 10-kOhm resistor when disabled.

Feature Summary

• Provides ten bits of high-speed bidirectional bus switching with near-zero propagation delay.
• Precharges the B port to a user-selectable bias voltage to minimize live-insertion noise.
• Integrates Schottky diodes on the I/Os to clamp undershoots for signal integrity.

Applications

• Connecting two ports in digital bus architectures
• Live insertion applications requiring minimized noise
• High-speed TTL-compatible data routing

Procurement Notes

Verify the specific ordering suffix 'DW' corresponds to the SOIC-24 tube packaging configuration. Confirm that the component status aligns with current production availability as datasheet information may be subject to change without notice. Ensure compatibility with the required 4 V to 5.5 V supply voltage range for your specific application environment.

Selection Notes

Select this component for applications requiring 10-bit wide bus switching with low on-state resistance. The device is suitable for systems needing TTL-compatible control inputs and protection against signal undershoots. Consider the 24-pin SOIC package dimensions for PCB layout constraints and verify thermal impedance requirements for the specific operating temperature range.

Part Context

This part belongs to the SN74CBTS6800 series of 10-bit FET bus switches. It is designed to provide high-speed connectivity between digital ports while managing signal distortion during live insertion through precharged outputs. The DW suffix specifically denotes the SOIC package type within the broader family of available form factors.

Replacement Considerations

SN74CBTS6800DWR

FAQ

How does the device handle live insertion?

The B port is precharged to a user-selectable bias voltage (BIASV) through an equivalent 10-kOhm resistor when the switch is off, minimizing live-insertion noise.

What is the function of the Schottky diodes?

Schottky diodes are integrated on the I/Os to clamp undershoots up to -2 V, protecting the device and maintaining signal integrity.