SN74ALVCH16952DLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALVCH16952 is a 16-bit registered transceiver with 3-state outputs designed for 1.65-V to 3.6-V VCC operation. It contains two sets of D-type flip-flops for temporary data storage flowing in either direction, functioning as two 8-bit or one 16-bit transceiver. Data on the A or B bus is stored in registers on the low-to-high transition of the clock input when the clock-enable input is low. Taking the output-enable input low accesses the data on either port. The device operates from -40°C to 85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Active bus-hold circuitry holds unused or floating data inputs at a valid logic level, eliminating the need for external pullup/pulldown resistors.
• ESD protection exceeds 2000 V per MIL-STD-883, Method 3015 and exceeds 200 V using the Machine Model.
• Latch-up performance exceeds 500 mA per JESD 17.
• Designed using EPIC (Enhanced-Performance Implanted CMOS) submicron process technology.

Buffers, Drivers, Receivers, Transceivers Applications

• High-density data acquisition systems
• Clocking and buffering applications
• Multi-drop buses

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the datasheet options. The DL package corresponds to the Plastic 300-mil Shrink Small-Outline. Confirm that the ordering suffix matches the required tape and reel or tube packaging configuration. Ensure the component status aligns with production requirements before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring 16-bit registered data transfer within the 1.65-V to 3.6-V supply range. It supports both 8-bit and 16-bit configurations via dual control inputs. Verify that the system timing requirements fall within the specified setup and hold times relative to the clock frequency.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Texas Instruments Widebus family and utilizes the EPIC submicron process. It provides registered transceiver functionality with active bus-hold features. The component is characterized for industrial temperature ranges and offers robust ESD and latch-up protection suitable for demanding electronic environments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct replacement part numbers include SN74ALVCH16952DGGR and SN74ALVCH16952DGGR.B, which utilize the TSSOP (DGG) package. Verify pinout compatibility and electrical specifications before substituting any alternative components.

Buffers, Drivers, Receivers, Transceivers 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, removing the requirement for external pullup or pulldown resistors.

What are the conditions for storing data in the registers?

Data on the A or B bus is stored in the registers on the low-to-high transition of the clock (CLKAB or CLKBA) input, provided that the corresponding clock-enable (CLKENAB or CLKENBA) input is low.

How is the high-impedance state ensured during power up or power down?

To ensure the high-impedance state during power up or power down, the OE input should be tied to VCC through a pullup resistor, with the minimum value determined by the current-sinking capability of the driver.