SN74ALVCH16600DGGR

Overview

The SN74ALVCH16600DGGR is an 18-bit universal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage range of 1.65 V to 3.6 V and features a maximum propagation delay of 4 ns at 3.3 V. The device provides ±24-mA output drive capability at 3.3 V and utilizes active bus-hold circuitry on data inputs. It is housed in a 56-pin TSSOP package (DGG) and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Combines D-type latches and D-type flip-flops for transparent, latched, clocked, or clock-enable operation modes
• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs without external resistors
• Independent control of data flow direction via separate output-enable, latch-enable, and clock inputs

Applications

• High-density memory buffer applications
• Clock distribution circuits
• Bus-oriented architectures requiring bidirectional data transfer

Procurement Notes

Verify the specific ordering suffix 'DGGR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the component meets RoHS compliance standards as indicated in the manufacturer's documentation. Ensure the procurement channel sources production data consistent with the latest revision of the official datasheet to guarantee parameter accuracy.

Selection Notes

Select this component when designing systems requiring 18-bit wide data paths with flexible mode control between transparent and latched states. The ALVCH series is suitable for low-voltage applications ranging from 1.65 V to 3.6 V. Consider the 56-pin TSSOP package dimensions for PCB layout constraints and verify that the ±24-mA drive strength matches the load requirements of the destination bus lines.

Part Context

This device belongs to the Texas Instruments Widebus family of universal bus transceivers. It integrates both latch and flip-flop functionalities within a single 18-bit architecture. The SN74ALVCH16600 is designed to simplify system design by providing multiple operational modes through dedicated control pins, eliminating the need for additional logic gates to manage data flow direction and storage states.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the same logic family. Verify electrical characteristics such as propagation delay and output drive current against the original specifications before substituting.