SN74LVC16646DL

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC16646DL is a 16-bit bus transceiver and register with 3-state outputs manufactured by Texas Instruments. It operates at a supply voltage (VCC) of 2.7 V to 3.6 V. The device features a propagation delay (tpd) of 8 ns at 3.3 V and 9.5 ns at 2.7 V, with a maximum clock frequency of 100 MHz at 3.3 V. It utilizes an EPIC submicron process and includes active bus-hold circuitry on data inputs. The component is housed in a 56-pin SSOP (DL) package and supports operation from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Multiplexed transmission capability allowing selection between real-time data and stored register data
• Active bus-hold circuitry eliminates the need for external pullup or pulldown resistors
• Latch-up performance exceeds 250 mA per JEDEC standard JESD-17
• Configurable as two 8-bit transceivers or one 16-bit transceiver

Buffers, Drivers, Receivers, Transceivers Applications

• Low-voltage (3.3-V) memory interface designs
• Bus-oriented systems requiring registered data storage
• Clocking data into registers on low-to-high transitions
• Multiplexed transmission of data directly from input buses or internal registers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the ordering suffix 'DL' corresponds to the plastic shrink small-outline package. Confirm the specific revision level matches the SCAS318B datasheet. Ensure the operating environment remains within the specified temperature range of -40°C to +85°C. Check that unused control inputs are tied high or low to prevent floating states during operation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring 3.3-V logic compatibility with registered bus management functions. The device supports independent direction control and output enable signals. Consider the 56-pin SSOP package constraints for PCB layout. Verify that the load capacitance requirements align with the system's timing specifications.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Widebus family utilizing Enhanced-Performance Implanted CMOS (EPIC) technology. It is designed specifically for low-voltage operations compared to older 5-V logic families. The device integrates D-type flip-flops alongside the transceiver circuits to manage data flow efficiently.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC16646DGGT

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle multiplexed data transmission?

The select-control inputs (SAB and SBA) allow the user to multiplex stored data from the internal registers or real-time transparent data from the input bus.

What is the purpose of the active bus-hold circuitry?

The active bus-hold circuitry holds unused or floating data inputs at a valid logic level, removing the requirement for external pullup or pulldown resistors.