74ABT646CMSA

Buffers, Drivers, Receivers, Transceivers Overview

The Fairchild Semiconductor 74ABT646CMSA is an octal bus transceiver and register featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input and output levels. The device provides a propagation delay of 5.6 ns, with low-level output current capability of 64 mA and high-level output current of -32 mA. It is housed in a TSSOP-24 package and functions across an operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration for eight-channel data transmission
• Three-state outputs to prevent bus contention
• Integrated registration for data storage

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus systems
• Memory buffer applications
• Clock driver circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix CMSA corresponds to the TSSOP-24 package variant. Check RoHS compliance status as indicated in official documentation. Ensure the part meets the required operating temperature specifications for the intended environment before integration into designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal registered bus transceiver with three-state outputs is required. It is suitable for applications needing high drive strength and fast switching speeds within a 5V logic family. Consider the TSSOP-24 package constraints for PCB layout. Verify compatibility with system voltage levels and timing requirements against the specified propagation delay and current ratings.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the ABT logic series, which combines BiCMOS technology for high speed with standard 5V operation. It serves as a registered bus transceiver, allowing data latching during transmission. The device is designed for high-performance digital systems requiring reliable data buffering and direction control across multiple lines simultaneously.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ABT646ANSR from Texas Instruments offers similar functionality as an octal bus transceiver with three-state outputs. Verify pinout compatibility and electrical parameters such as propagation delay and output current before substitution.