74ABT646CSCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT646CSCX is an octal bus transceiver and register featuring 3-STATE outputs. It operates within a supply voltage range of +4.5V to +5.5V and supports data rates up to 200 MHz. The device provides independent registers for A and B buses, allowing multiplexed real-time and stored data transmission. It features high impedance glitch-free bus loading during power cycles and nondestructive hot insertion capability. Propagation delays are specified at 1.7 ns to 5.6 ns under standard conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Independent registers for A and B buses with multiplexed real-time and stored data capabilities
• High impedance glitch-free bus loading during the entire power-up and power-down cycle
• Nondestructive hot insertion capability ensuring safe system operation
• Guaranteed output skew and simultaneous switching noise level performance

Buffers, Drivers, Receivers, Transceivers Applications

• Multiplexed transmission of data directly from input bus or internal registers
• Storage of data present at the high impedance port in either A or B register
• Controlled data transfer between buses using direction and enable controls

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the ordering code suffix. Confirm RoHS compliance status through official documentation. Check current availability as distribution channels may vary. Ensure the component meets the required operating temperature range for the intended application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring octal bidirectional data transfer with storage capabilities. Consider the ABT logic family for high-speed performance. Verify that the 3-STATE output characteristics match the system bus requirements. Ensure the supply voltage aligns with the +4.5V to +5.5V specification.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the ABT logic series, known for BiCMOS technology offering high speed and low power consumption. It functions as a registered bus transceiver, combining buffering and latching in a single package. The design supports complex data routing scenarios in digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible alternatives include SN74ABT646 variants from Texas Instruments. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement part supports the same 3-STATE output and register functionality.