74ALVCH16500DGGY

Overview

The Nexperia 74ALVCH16500DGGY is an 18-bit universal bus transceiver with 3-state outputs, housed in a TSSOP56 (SOT364-1) package. It supports a supply voltage range of 1.65 V to 3.6 V and operates within an ambient temperature range of -40 °C to +85 °C. The device features bus hold inputs, low power CMOS dissipation, and IOFF circuitry for partial power-down applications. It provides direct interface with TTL levels at 2.7 V to 3.6 V and includes multiple VCC and GND pins to minimize noise and ground bounce.

Feature Summary

• Universal data flow control via dedicated output enable, latch enable, and clock inputs for both A-to-B and B-to-A directions.
• Integrated bus hold functionality on all data inputs to eliminate the need for external pull-up resistors.
• IOFF circuitry disables outputs during partial power-down to prevent potentially damaging backflow current.
• Low inductance multiple power and ground pin architecture designed to minimize noise and ground bounce.

Applications

• High-density memory interfaces requiring latched data storage
• Mixed voltage system interconnects utilizing 3.3 V and 5 V tolerant logic
• Bus architectures needing controlled data flow directionality

Procurement Notes

Verify the specific ordering suffix 'Y' against the manufacturer's official documentation to confirm packaging details such as reel or cut tape specifications. Confirm that the TSSOP56 package variant matches the required board layout dimensions. Ensure compliance with moisture sensitivity level requirements during assembly processing.

Selection Notes

Select this component when an 18-bit width is required for universal bus applications. The inclusion of latch enables allows for data storage directly within the transceiver, reducing external logic complexity. Verify that the operating voltage aligns with the 1.65 V to 3.6 V range and that the thermal performance meets the -40 °C to +85 °C specification.

Part Context

This device belongs to the ALVCH logic family, characterized by advanced low-voltage CMOS technology. It is part of Nexperia's portfolio of universal bus transceivers designed for high-speed data transfer. The product utilizes a standard MULTIBYTE flow-through pin-out architecture, ensuring compatibility with existing designs while offering enhanced performance through reduced inductance.

Replacement Considerations

Consult the official datasheet for cross-reference information. No specific substitute part numbers are documented in the provided source material.