SN74CBT6800ADBR

Overview

The SN74CBT6800ADBR is a 10-bit FET bus switch manufactured by Texas Instruments, housed in a 24-pin SSOP package. It operates within a supply voltage range of 4 V to 5.5 V and supports an operating temperature from -40°C to 85°C. The device features TTL-compatible input levels and provides bidirectional switching between Port A and Port B with near-zero propagation delay. Key electrical characteristics include a maximum on-state resistance of 20 Ohms at VCC = 4 V and a typical propagation delay of 0.25 ns at VCC = 5 V.

Feature Summary

• Provides ten bits of high-speed TTL-compatible bus switching with low on-state resistance for bidirectional connections.
• Precharges the B port to a user-selectable bias voltage (BIASV) to minimize signal distortion during live insertion.
• Features a single enable input that controls the connection state between Port A and Port B.

Applications

• High-speed data bus switching applications requiring minimal signal distortion.
• Live insertion scenarios where precharging outputs reduces noise.
• Bidirectional data transfer interfaces utilizing TTL-compatible logic levels.

Procurement Notes

Verify the specific ordering suffix 'DBR' corresponds to the SSOP package and tape-and-reel configuration as listed in the official TI ordering information. Confirm that the component status remains active production before finalizing procurement plans. Ensure compatibility with the required operating temperature range of -40°C to 85°C for your specific application environment.

Selection Notes

Select this component when a 10-bit wide bus switch is required with TTL-compatible inputs. The device is suitable for applications needing low on-state resistance and fast propagation delays. Consider the SSOP-24 package constraints and ensure the design accommodates the BIASV pin for precharging functionality if live insertion protection is necessary.

Part Context

This part belongs to the SN74CBT6800A series of 10-bit FET bus switches. It shares functional similarities with other devices in the CBTK and CBT families but is distinguished by its specific 10-bit width and precharged output capability. The 'ADBR' designation indicates the industrial temperature grade and SSOP tape-and-reel packaging format.

Replacement Considerations

Direct substitutes include SN74CBT6800APWR (TSSOP package) or SN74CBT6800ADW (SOIC package). Verify pinout compatibility and package dimensions when transitioning between these variants.