74ALVCH162836VRG4

Overview

The SN74ALVCH162836VRG4 is a 20-bit universal bus driver with 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 1.65 V to 3.6 V and supports an operating temperature from -40 °C to +85 °C. The device utilizes the EPIC submicron CMOS process and belongs to the Widebus family. It features active bus-hold circuitry on data inputs and includes equivalent 26-Ω series resistors in the output port to reduce overshoot and undershoot.

Feature Summary

• Designed for compliance with JEDEC SDRAM buffered DIMM specifications
• Features active bus-hold circuitry to eliminate external pullup/pulldown resistors
• Includes integrated output series resistors to minimize signal overshoot and undershoot
• Provides high ESD protection exceeding 2000 V per MIL-STD-883

Applications

• Buffered DIMM designs compliant with JEDEC standards
• High-density memory interface buffering
• Universal bus driving applications requiring latch functionality

Procurement Notes

Verify the specific package marking and date code against the manufacturer's latest production data sheet to confirm authenticity. Ensure the component matches the TVSOP-56 (DGV) physical dimensions and pinout configuration required for the target PCB layout. Confirm RoHS compliance status through official documentation prior to integration.

Selection Notes

Select this component when a 20-bit wide bus interface with latching capability is required. It is suitable for low-voltage logic systems operating between 1.65 V and 3.6 V. Consider the integrated series resistance for signal integrity improvements in high-speed digital paths without adding discrete components.

Part Context

This device is part of the Texas Instruments 74ALVCH162836 family, which provides 20-bit universal bus drivers. The VRG4 suffix indicates the Thin Very Small-Outline (TVSOP) package variant with tape-and-reel packaging. It shares functional characteristics with other members of the Widebus family designed for high-density memory applications.

Replacement Considerations

Direct replacements include SN74ALVCH162836DGGR and SN74ALVCH162836GRE4. Verify pin compatibility and electrical specifications before substitution.