SN74ALVCH16409DGGR

Overview

The SN74ALVCH16409DGGR is a 9-bit, 4-port universal bus exchanger with 3-state outputs from the Texas Instruments Widebus family. It operates from 1.65 V to 3.6 V and features a maximum propagation delay of 5.1 ns at 3.3 V. The device provides ±24-mA output drive capability and includes active bus-hold circuitry on data inputs to eliminate external pullup/pulldown resistors. Latch-up performance exceeds 250 mA per JESD 17. It is housed in a 56-pin TSSOP package (DGG) and supplied in tape and reel format.

Feature Summary

• Enables synchronous data exchange between four different buses using select inputs and clock control logic.
• Incorporates active bus-hold circuitry on data inputs to maintain valid logic states without external components.
• Provides glitch-free data transmission through dedicated flow and storage control mechanisms.
• Features an immediate high-impedance state during power up or down via the PRE input.

Applications

• Synchronous data exchange between multiple system buses
• High-speed digital signal routing in embedded systems
• Bus arbitration and switching in communication interfaces

Procurement Notes

Verify that the DGG suffix corresponds to the TSSOP package and DGGR indicates tape and reel packaging. Confirm the component meets RoHS compliance standards for your specific manufacturing requirements. Ensure design compatibility with the 1.65 V to 3.6 V supply voltage range and -40°C to 85°C operating temperature specifications.

Selection Notes

Select this component when designing systems requiring multi-port bus interconnection with low power consumption. The ALVCH series is suitable for applications needing operation below 3.3 V while maintaining fast switching speeds. Consider the 56-pin TSSOP footprint for space-constrained PCB layouts requiring surface mount technology.

Part Context

This part belongs to the Texas Instruments 74ALVCH logic family, designed for advanced low-voltage CMOS applications. The SN74ALVCH16409 specifically addresses complex bus topology needs within the Widebus portfolio. It complements other bus transceivers and level shifters by providing configurable port selection rather than simple bidirectional transfer.

Replacement Considerations

SN74ALVCH16409DLR is a compatible alternative in the same family with identical electrical characteristics but packaged in SSOP instead of TSSOP.