SN74ALVCH16270DGGR

Universal Bus Functions Overview

The SN74ALVCH16270DGGR is a 12-bit to 24-bit registered bus exchanger with 3-state outputs, designed for 1.65-V to 3.6-V VCC operation. It provides synchronous data exchange between two ports, storing data in internal registers on the low-to-high transition of the clock input when appropriate CLKEN inputs are low. The device features active bus-hold circuitry on data inputs and ESD protection exceeding 2000 V per MIL-STD-883. It operates from -40 °C to 85 °C.

Universal Bus Functions Feature Summary

• Synchronous data exchange between narrow high-speed buses and wide lower-frequency buses
• Active bus-hold circuitry eliminates the need for external pullup/pulldown resistors
• ESD protection exceeds 2000 V per MIL-STD-883, Method 3015
• Latch-up performance exceeds 250 mA per JESD 17

Universal Bus Functions Applications

• Transferring data from a narrow high-speed bus to a wide lower-frequency bus
• Synchronous data exchange applications requiring 12-bit to 24-bit word conversion
• Systems utilizing EPIC (Enhanced-Performance Implanted CMOS) submicron process technology

Universal Bus Functions Procurement Notes

Verify the specific package type matches the design requirements, as the SN74ALVCH16270 family includes both SSOP (DL) and TSSOP (DGG) options. Confirm that the ordering suffix corresponds to the desired packaging format, such as tube or tape-and-reel, before finalizing procurement. Ensure compatibility with the intended operating voltage range of 1.65 V to 3.6 V.

Universal Bus Functions Selection Notes

Select this component for applications requiring registered bus exchanging capabilities within the ALVCH logic family. Consider the propagation delay characteristics and power dissipation capacitance values when designing for high-frequency operations up to 150 MHz. Evaluate the thermal impedance of the DGG package if heat dissipation is a critical factor in the system design.

Universal Bus Functions Part Context

This device belongs to the Texas Instruments Widebus family and utilizes the EPIC submicron process. It is characterized for operation across an extended temperature range. The SN74ALVCH16270 serves as a bridge between different bus widths, facilitating efficient data transfer in complex digital systems.

Universal Bus Functions Replacement Considerations

SN74ALVCH16270DL

Universal Bus Functions FAQ

How does the device handle unused or floating data inputs?

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level, eliminating the need for external pullup or pulldown resistors.

What is the mechanism for controlling data flow direction?

Data flow is controlled by the active-low output enables (OEA, OEB). The control terminals are registered to synchronize bus-direction changes with the clock signal.