SN74ALVCH162334GR

Overview

The SN74ALVCH162334GR is a 16-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 data rates up to 150 MHz. The device features an equivalent 26-ohm series resistor on the output port, eliminating the need for external resistors. It includes active bus-hold circuitry on data inputs to maintain valid logic levels without external pullup or pulldown components. The component is characterized for operation from -40°C to 85°C and utilizes EPIC submicron CMOS technology.

Feature Summary

• Integrated latch/flip-flop functionality controlled by latch-enable (LE) and clock (CLK) inputs for data storage
• Active bus-hold circuitry maintains unused or floating data inputs at valid logic levels
• Built-in equivalent 26-ohm series resistors reduce signal overshoot and undershoot

Applications

• Buffered DIMM designs compliant with JEDEC 168-pin and 200-pin SDRAM specifications
• High-speed data buffering in systems requiring 1.65-V to 3.6-V operation
• Universal bus drivers in embedded applications utilizing Widebus family architecture

Procurement Notes

Verify that the GR suffix corresponds to the Thin Shrink Small-Outline (DGG) package type before ordering. Confirm RoHS compliance status and lead finish details via the latest TI Package Option Addendum. Ensure design requirements align with the specified operating temperature range and voltage limits. Check current production status as availability may vary over time.

Selection Notes

Select this component when a 16-bit buffered driver with internal latching capability is required. The integrated bus-hold feature simplifies input handling for unused channels. Verify that the system voltage falls within the 1.65-V to 3.6-V range. Consider the 26-ohm internal resistance for impedance matching needs. Ensure the DGG package dimensions fit the target PCB layout constraints.

Part Context

This device belongs to the Texas Instruments Widebus family, designed for high-density digital interfacing. It employs Enhanced-Performance Implanted CMOS (EPIC) submicron process technology. The part provides robust ESD protection exceeding 2000 V per MIL-STD-883. It is engineered to meet specific JEDEC standards for SDRAM buffered DIMMs, ensuring reliable performance in memory subsystems.

Replacement Considerations

Direct substitutes include SN74ALVCH162334DL and SN74ALVCH162334VR. Verify pin compatibility and package dimensions when transitioning between DL, GR, and VR variants. Ensure electrical characteristics match the original design requirements.