74ALVCH16646DGG:11

Buffers, Drivers, Receivers, Transceivers Overview

The 74ALVCH16646 is a 16-bit bus transceiver and register with 3-state outputs, manufactured by Nexperia. It operates within a supply voltage range of 2.3 V to 3.6 V and supports data rates up to 320 MHz at 3.0 V to 3.6 V. The device features MULTIBYTE flow-through architecture, active bus-hold circuitry on all inputs, and current drive capability of ±24 mA at VCC = 3.0 V. It complies with JEDEC standards JESD8-7, JESD8-5, and JESD8C/JESD36, offering ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Multiplexed transmission of data directly from internal registers.
• Active bus-hold circuitry maintains valid logic levels for unused or floating inputs.
• MULTIBYTE flow-through standard pin-out architecture minimizes noise and ground bounce.
• Direct interface compatibility with TTL logic levels.

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data buffering between buses.
• Clock domain crossing applications.
• Bus-oriented memory and signal switching.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature range. Confirm that the component version aligns with the latest product data sheet revision to ensure accurate electrical specifications and compliance with current JEDEC standards. Check for any specific automotive qualification requirements if applicable to the target application.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring 16-bit bidirectional data transfer with integrated storage capabilities. Ensure the operating voltage falls within the 2.3 V to 3.6 V range. Consider the TSSOP56 package constraints for PCB layout. Verify that the output load capacitance and transition rates comply with recommended operating conditions to maintain specified propagation delays.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the ALVCH series of advanced low-voltage CMOS logic components. It integrates both transceiver and register functions in a single package, distinguishing it from simple bus drivers. The design focuses on high-speed performance and low power consumption suitable for modern digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for direct pin-compatible alternatives within the same logic family. Verify that substitute parts support the same supply voltage range and have equivalent propagation delay characteristics. Ensure the replacement package matches the physical footprint and thermal requirements of the original design.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial power-down scenarios?

The datasheet does not explicitly specify I_OFF circuitry for partial power-down protection in the general description or features section for this specific part number.

What is the maximum clock frequency supported?

The maximum frequency is specified as 320 MHz typical at VCC = 3.0 V to 3.6 V.