SN74ALVCH16269DL

Universal Bus Functions Overview

The SN74ALVCH16269DL 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 at 3.3 V and includes bus hold on data inputs to eliminate the need for external pullup or pulldown resistors. Latch-up performance exceeds 250 mA per JESD 17 standards. It is housed in a 56-pin SSOP (DL) package.

Universal Bus Functions Feature Summary

• Registered bus exchange functionality allowing multiplexing and demultiplexing between two separate ports and a single port
• Active bus-hold circuitry maintains unused or undriven inputs at valid logic states without external components
• Synchronous control terminals ensure all transactions are synchronized with the clock input
• High ESD protection exceeding 2000-V human-body model and 200-V machine model ratings

Universal Bus Functions Applications

• Interface between synchronous DRAMs and high-speed microprocessors
• Multiplexing two sequential 12-bit words into a 24-bit word on a B port
• Demultiplexing a 24-bit word back into two 12-bit words

Universal Bus Functions Procurement Notes

Verify the specific ordering suffix 'DL' corresponds to the SSOP-56 package configuration required for your design. Confirm that the component status remains active production as datasheet information is current as of publication date. Ensure compatibility with the -40°C to 85°C operating temperature range specified for this package variant.

Universal Bus Functions Selection Notes

Select this component when a registered bus exchanger capable of handling 12-bit to 24-bit data paths is required within the 1.65-V to 3.6-V voltage domain. The device is suitable for applications needing synchronous control of data flow with registered outputs to extend data validity periods on the bus.

Universal Bus Functions Part Context

This device belongs to the Texas Instruments Widebus family of logic ICs. It is designed specifically for high-speed data transfer applications where multiple data streams must be managed efficiently. The registered nature of the outputs allows for faster data transfer rates compared to non-registered alternatives.

Universal Bus Functions Replacement Considerations

SN74ALVCH16269DGGR (TSSOP-56 package)

Universal Bus Functions FAQ

How does the device handle unused or undriven inputs?

The device incorporates active bus-hold circuitry that holds unused or undriven inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors.

What is the purpose of the SEL line?

The select (SEL) line selects either 1B or 2B data for the A outputs during B-to-A storage operations.