SN74ALVCH16344DGGR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALVCH16344DGGR is a 1-bit to 4-bit address driver with 3-state outputs, designed for 1.65-V to 3.6-V VCC operation. It belongs to the Texas Instruments Widebus family and features active bus-hold circuitry on data inputs to eliminate external pullup/pulldown resistors. The device provides latch-up performance exceeding 250 mA per JESD 17 and ESD protection exceeding 2000-V human-body model (A114-A) and 200-V machine model (A115-A). It is housed in a 56-pin TSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs without requiring external resistors.
• Designed for addressing four separate memory locations using a single address input.
• Provides high-impedance state during power up or power down when OE is tied to VCC through a pullup resistor.

Buffers, Drivers, Receivers, Transceivers Applications

• Addressing multiple memory locations from a single address source
• Bus hold applications eliminating external pullup/pulldown resistors
• Low-voltage logic interfacing within 1.65-V to 3.6-V supply ranges

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the exact ordering suffix 'DGGR' corresponds to the TSSOP-56 tape and reel packaging configuration. Confirm RoHS compliance status and moisture sensitivity level (MSL 1) requirements against your assembly process specifications. Ensure the operating temperature range of -40°C to 85°C aligns with your system's thermal environment constraints before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a single address line must drive four distinct memory banks simultaneously. The active bus-hold feature simplifies design by removing the need for external pullup or pulldown resistors on data inputs. Verify that the 1.65-V to 3.6-V supply voltage range matches your system's power rails and that the 56-pin TSSOP package fits your PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part is a member of the Texas Instruments Widebus family, specifically engineered for low-voltage address driving applications. It integrates 3-state outputs and active bus-hold functionality to streamline board design. The DGGR suffix indicates it is supplied in a tape and reel format within a 56-pin TSSOP package, suitable for automated surface-mount assembly processes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ALVCH16344DL is a direct substitute offering identical electrical characteristics but packaged in an SSOP tube instead of a TSSOP tape and reel.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused or undriven inputs?

The SN74ALVCH16344DGGR utilizes active bus-hold circuitry on its data inputs to maintain them at a valid logic state, thereby eliminating the need for external pullup or pulldown resistors.

What is the recommended method to ensure a high-impedance state during power transitions?

To ensure the high-impedance state during power up or power down, the OE pin should be tied to VCC through a pullup resistor, with the minimum value determined by the driver's current-sinking capability.