SN74ALVCH16269DGGR

Universal Bus Functions Overview

The SN74ALVCH16269DGGR is a 12-bit to 24-bit registered bus exchanger with 3-state outputs, manufactured by Texas Instruments. It operates from a supply voltage range of 1.65 V to 3.6 V and features a maximum propagation delay of 5 ns at 3.3 V. The device provides ±24-mA output drive capability and includes bus hold on data inputs to eliminate the need for external pullup or pulldown resistors. Packaged in a 56-pin TSSOP (DGG) format, it supports an operating temperature range from -40°C to +85°C.

Universal Bus Functions Feature Summary

• Registered bus exchange functionality allowing multiplexing of two separate ports onto a single port
• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs
• Synchronous control terminals ensure all transactions are synchronized with the clock input

Universal Bus Functions Applications

• Interface between synchronous DRAMs and high-speed microprocessors
• Multiplexing two sequential 12-bit words into a 24-bit word on the B port
• Demultiplexing data from a single port to two separate ports

Universal Bus Functions Procurement Notes

Verify that the specific ordering suffix matches the required package type and tape-and-reel specifications. Confirm the moisture sensitivity level and peak reflow temperature ratings align with your assembly process requirements. Ensure the active-low output enable logic and clock polarity match your system design constraints before finalizing procurement.

Universal Bus Functions Selection Notes

Select this component when a registered bus exchanger is needed to interface 12-bit and 24-bit data paths within the ALVCH voltage domain. Consider the 5 ns propagation delay and 135 MHz clock frequency limits for high-speed applications. Verify that the 56-pin TSSOP footprint fits the available PCB space and that the power supply range accommodates the system's 1.65 V to 3.6 V operation.

Universal Bus Functions Part Context

This device belongs to the Texas Instruments Widebus family of logic integrated circuits. It is designed specifically for applications requiring efficient data routing between different bus widths. The registered nature of the control terminals distinguishes it from non-registered bus switches, providing precise timing control for synchronous systems.

Universal Bus Functions Replacement Considerations

Check for other members of the SN74ALVCH16269 series with different packaging options if pin compatibility is not required. Verify functional equivalence with other 12-to-24-bit registered bus exchangers from various manufacturers, ensuring voltage ranges and drive strengths meet system specifications.