74ACT16646DLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT16646DLR is a registered bus transceiver manufactured by Texas Instruments, featuring two independent 8-bit circuits within a single SSOP-56 package. It operates on a 4.5 V to 5.5 V supply and supports bidirectional data transfer with three-state outputs. The device includes registers that clock data from the A or B bus, allowing for multiplexed transmission of either registered or real-time data via a select input. Key electrical parameters include a propagation delay of 11.1 ns, low-level output current of 24 mA, and high-level output current of -24 mA. It functions within a temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrated register functionality allows data on the A or B bus to be clocked into internal storage elements.
• Provides independent control for bidirectional data transmission between two separate buses.
• Features a select input that enables multiplexed transmission of either registered or real-time data.
• Outputs are three-state, facilitating connection to multiple devices on a shared bus structure.

Buffers, Drivers, Receivers, Transceivers Applications

• High-density memory buffer applications requiring registered data paths
• Clocking data buffers in complex digital systems
• Bus-oriented transfers where data registration is necessary

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to ensure the correct package type and tape-and-reel configuration match your assembly requirements. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the SSOP-56 footprint dimensions align with your PCB design constraints. Check for any recent product change notifications regarding material or assembly updates.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require both bus transceiving and data registration capabilities in a 16-bit configuration. It is suitable for applications needing independent control of two 8-bit buses. Consider the ACT logic family characteristics, such as TTL-compatible inputs and CMOS outputs, for interface compatibility. Evaluate the 11.1 ns propagation delay against your system timing requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments 74ACT series of advanced CMOS logic devices. It is functionally related to other 16-bit bus transceivers like the SN74ABT16646, though differing in logic family specifications. The DL suffix indicates the SSOP-56 surface-mount package. It serves as a registered version of standard bus transceivers, adding storage capability to the data path.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74ABT16646DLR is a documented alternative within the same package, offering ABT logic characteristics instead of ACT. Verify voltage levels and drive strengths when substituting. No other direct pin-to-pin replacements are confirmed in the provided data.