SN74ALVCH16409DLR

Overview

The SN74ALVCH16409DLR 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 bus hold on data inputs to eliminate external pullup/pulldown resistors. Latch-up performance exceeds 250 mA per JESD 17.

Feature Summary

• Allows synchronous data exchange between four different buses controlled by select inputs
• Active bus-hold circuitry holds unused or undriven inputs at a valid logic state
• Glitch-free data transmission design for established data-flow states
• Immediate output disabling upon preset transition without waiting for a clock pulse

Applications

• Synchronous data exchange in multi-bus architectures
• Universal bus interfacing requiring glitch-free transmission
• Low-voltage logic systems operating between 1.65 V and 3.6 V

Procurement Notes

Verify the specific package variant against project requirements, as the DL suffix indicates SSOP packaging while DGG indicates TSSOP. Confirm that the selected component matches the required thermal impedance and pinout dimensions for the PCB layout. Ensure all control inputs are properly terminated to prevent undefined states during operation.

Selection Notes

Select this component when designing systems requiring synchronous routing across multiple independent buses within a low-voltage environment. The inclusion of active bus-hold simplifies input handling for floating lines. Verify that the supply voltage range aligns with the system's power rails and that the output drive strength meets the load requirements.

Part Context

This device belongs to the Texas Instruments Widebus family, designed specifically for high-density bus applications. It integrates complex control logic to manage data flow between ports using a clocked interface. The architecture supports flexible routing configurations through dedicated select pins, enabling dynamic reconfiguration of data paths.

Replacement Considerations

SN74ALVCH16409DL