SN74ALVCH16500DL

Overview

The SN74ALVCH16500 is an 18-bit universal bus transceiver with 3-state outputs designed for 1.65-V to 3.6-V VCC operation. It combines D-type latches and flip-flops for transparent, latched, or clocked modes. The device features active bus-hold circuitry on data inputs to eliminate external pullup/pulldown resistors. It operates from -40°C to 85°C and includes ESD protection exceeding 2000 V per MIL-STD-883.

Feature Summary

• Combines D-type latches and flip-flops for versatile transparent, latched, or clocked operation
• Active bus-hold circuitry maintains valid logic levels on unused or floating data inputs
• ESD protection exceeds 2000 V per MIL-STD-883 Method 3015
• Latch-up performance exceeds 250 mA per JESD 17

Applications

• Universal bus transceivers requiring 18-bit data handling
• Systems utilizing mixed D-type latch and flip-flop configurations
• Applications needing active bus-hold without external resistors

Procurement Notes

Verify the specific package variant (DL or DGG) required for your design constraints. Confirm that the ordering suffix matches the desired tape-and-reel quantity if applicable. Ensure voltage supply ranges align with the 1.65-V to 3.6-V specification. Check for any recent lifecycle status updates regarding production availability.

Selection Notes

Select this component when an 18-bit widebus transceiver with integrated storage elements is needed. It supports both transparent and clocked data flow directions. Consider the complementary output enable signals OEAB and OEBA for bidirectional control. Verify thermal impedance requirements against the plastic shrink small-outline package options.

Part Context

This device belongs to Texas Instruments' Widebus family, utilizing EPIC submicron CMOS technology. It serves as a high-density solution for complex digital systems requiring extensive bus interfacing. The universal bus transceiver architecture allows flexible configuration of data paths across multiple channels simultaneously.

Replacement Considerations

Consult official substitution guides for compatible 18-bit bus transceivers within the ALVCH series. Verify pinout compatibility and electrical characteristics before replacing existing designs.