SN74AS646DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS646DW is an octal bus transceiver and register manufactured by Texas Instruments, belonging to the AS logic series. It features eight non-inverting channels with three-state outputs in a 24-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input and output levels. Key electrical specifications include a propagation delay of 9 ns, a low-level output current of 48 mA, and a high-level output current of -15 mA. It functions reliably across an operating temperature range from 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates registered bus transceiver functionality for data storage and bidirectional transfer
• Provides three-state outputs to facilitate efficient bus line management
• Supports TTL-compatible input and output signal levels

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data communication on system buses
• Memory-to-memory or memory-to-I/O transfers
• Buffering and driving of bus lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature grade. Ensure compatibility with existing system voltage requirements before integration. Confirm RoHS compliance status through manufacturer datasheets. Validate pinout alignment with design schematics to prevent installation errors.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when registered octal bus transfer with high drive capability is required. The AS series offers faster switching speeds compared to standard variants. Verify that the 4.5 V to 5.5 V supply range matches the target system architecture. Consider the SOIC-24 package dimensions for PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AS646 family of octal bus transceivers. It serves as a registered interface between microprocessors and peripheral devices. The device is designed for high-speed digital applications requiring reliable data latching and transmission capabilities within industrial temperature ranges.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify functional equivalence regarding pinout and electrical characteristics before replacing.