74LVTH646MTC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74LVTH646MTC is a low-voltage octal bus transceiver and register with 3-state outputs, fabricated using advanced BiCMOS technology. It operates within a supply voltage range of 2.7V to 3.6V and supports TTL interface levels up to 5.5V. The device features bushold data inputs to eliminate external pull-up resistors for unused lines. It provides high-speed operation with propagation delays as low as 1.3ns at 3.3V. The component includes D-type flip-flops and control circuitry for multiplexed transmission from input buses or internal storage registers.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports live insertion and extraction without bus contention
• Provides glitch-free bus loading during power-up and power-down cycles
• Features bushold data inputs to maintain state without external components
• Offers functional compatibility with standard 74 series 646 devices

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data transfer between 3.3V and 5V logic systems
• Multiplexed transmission of data in memory architectures
• Buffering and driving bidirectional buses in embedded systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant, as the MTC suffix denotes the TSSOP-24 form factor. Confirm that the source material aligns with the requested part number before procurement. Check for any applicable RoHS compliance documentation required by your region. Ensure that the operating temperature range meets your system's environmental specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing between different voltage domains requiring registered data paths. The BiCMOS technology ensures low power dissipation while maintaining ABT-like speeds. Consider the bushold feature if minimizing external passive components is a priority. Verify that the 3-state output current capabilities meet the load requirements of the destination bus.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the LVTH logic family, designed for low-voltage applications. It integrates both transceiver and register functions into a single octal configuration. The technology combines the speed of bipolar processes with the low power of CMOS. It serves as a bridge for data management in mixed-voltage digital environments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The datasheet notes functional compatibility with the 74 series 646. Verify pinout and electrical characteristics against other octal transceivers if substituting. Ensure that replacement parts support the same 3.3V operating voltage and 5V tolerant inputs.