SN74ALVCHG162282GR

Overview

The SN74ALVCHG162282GR is an 18-bit to 36-bit registered bus exchanger with 3-state outputs, designed for low-voltage 3.3-V VCC operation. It facilitates synchronous data exchange between two ports using a clock input. The device features active bus-hold circuitry on data inputs and equivalent series resistors of 50 Ω on A-port outputs and 20 Ω on B-port outputs. It operates within a supply voltage range of 3 V to 3.6 V and supports a maximum clock frequency of 160 MHz.

Feature Summary

• Provides synchronous data exchange between narrow high-speed buses and wide lower-frequency buses via internal registers triggered by the clock input.
• Features active bus-hold circuitry on data inputs to maintain valid logic levels without external pullup or pulldown resistors.
• Incorporates equivalent series resistors in output paths (50 Ω for A-port, 20 Ω for B-port) to eliminate the need for external components.

Applications

• Transferring data from narrow high-speed buses to wide lower-frequency buses
• Synchronous data exchange applications requiring registered bus architecture
• Low-voltage 3.3-V system interconnects

Procurement Notes

Verify that the specific GR suffix corresponds to the tape and reel packaging format as defined in the manufacturer's documentation. Confirm that the operating temperature range meets the application requirements, as this component is characterized for 0°C to 70°C. Ensure design compatibility with the specified 3 V to 3.6 V supply voltage limits.

Selection Notes

Select this component when an 18-to-36-bit registered bus exchanger is required for synchronous data transfer. It is suitable for designs needing integrated series resistance and bus-hold functionality to simplify board layout. Consider the 0°C to 70°C commercial temperature range and 3.3-V operation constraints during system planning.

Part Context

This device belongs to the Texas Instruments Widebus family and utilizes the EPIC submicron process technology. It is packaged in a thin Very Small-Outline Package (DBB/GR), providing a compact solution for high-density digital systems requiring efficient bus management capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.