74FST6800DTR2

Overview

The onsemi 74FST6800DTR2G is a 10-bit bus switch with precharged outputs, manufactured using CMOS technology. It operates within a supply voltage range of 4.0 V to 5.5 V and is TTL compatible. The device features extremely low on-resistance (RON) and negligible propagation delay. Key electrical parameters include a maximum propagation delay of 0.25 ns at 4.5–5.5 V and an output enable time of 1.0 ns. It supports a DC output sink current of 128 mA and operates across a temperature range of -40°C to +85°C.

Feature Summary

• Features precharged outputs that add no noise or ground bounce to the system
• Provides nearly zero standby current consumption
• Control inputs are compatible with both TTL and CMOS logic levels
• Pin-for-pin compatible with QS6800, FST6800, and CBT6800 devices

Applications

• High-speed data bus switching applications
• System interconnects requiring minimal signal distortion
• Low-power digital circuit interfaces

Procurement Notes

Verify the specific package suffix matches the required form factor, as the DTR2G designation indicates TSSOP-24 packaging in tape and reel format. Confirm RoHS compliance status and Pb-Free characteristics for the specific manufacturing lot. Ensure ordering information aligns with the official ON Semiconductor datasheet specifications before finalizing procurement.

Selection Notes

Select this component when designing systems requiring high-speed bidirectional data transfer with minimal latency. The 10-bit width accommodates standard data buses. Verify that the operating voltage falls within the 4.0 V to 5.5 V range. Consider the TSSOP-24 package dimensions for PCB layout constraints and thermal management requirements.

Part Context

This device belongs to the 74FST series of high-speed bus switches from onsemi. It is designed for applications demanding fast switching speeds and low power dissipation. The part number suffix 'DTR2G' specifies the TSSOP-24 package type and tape-and-reel shipping configuration.

Replacement Considerations

Direct pin-for-pin substitutes include the QS6800, FST6800, and CBT6800. Verify functional compatibility and electrical specifications against these alternatives before implementation.

FAQ

What is the typical on-resistance (RON) of the 74FST6800?

The typical on-resistance is specified based on test conditions, with values ranging from 4 ohms to 20 ohms depending on input voltage and current.

Is the 74FST6800 suitable for high-frequency applications?

Yes, it exhibits a maximum propagation delay of less than 0.25 ns, making it suitable for high-speed data bus switching.