SN74AS4374BDWR

Flip Flops Overview

The SN74AS4374BDWR is an octal edge-triggered D-type flip-flop with 3-state outputs from the Texas Instruments 74AS series. It operates on a single supply voltage ranging from 4.5 V to 5.5 V. The device features positive edge triggering and non-inverted outputs. Key electrical parameters include a propagation delay of 8.5 ns, a high-level output current of -15 mA, and a low-level output current of 48 mA. It supports a maximum frequency of 125 MHz. The component is housed in a 20-SOIC package.

Flip Flops Feature Summary

• Octal D-type flip-flop architecture with tri-state outputs
• Positive edge triggering mechanism for data capture
• High-speed operation capability up to 125 MHz
• Robust low-level output drive strength

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• High-speed buffer stages in digital systems
• Register files in microprocessor interfaces
• Timing synchronization logic blocks

Flip Flops Procurement Notes

Verify the specific suffix BDWR confirms the SOIC-20 surface-mount package and tape-and-reel packaging format. Confirm RoHS compliance status as indicated by the E4 designation if environmental regulations apply. Ensure the source document explicitly lists this part number as active or available through authorized channels, noting that AS series components may have limited new production availability compared to standard 74LS equivalents.

Flip Flops Selection Notes

Select this component when high-speed performance is critical, as it offers significantly faster switching than standard 74LS counterparts. The 48 mA low-level output current provides strong drive capability for bus loads. Ensure the design requires positive edge triggering and tri-state control. Verify that the 20-SOIC footprint matches the PCB layout constraints and that the 4.5 V to 5.5 V operating range aligns with the system power supply.

Flip Flops Part Context

This device belongs to the Texas Instruments 74AS (Advanced Schottky) logic family, known for high speed. It is functionally similar to the SN74AS374 but packaged in a 20-pin SOIC configuration suitable for surface-mount assembly. The 74AS series utilizes Schottky clamping to prevent saturation, ensuring rapid turn-off times for improved performance in high-frequency digital applications.

Flip Flops Replacement Considerations

The SN74AS374 is a functional equivalent offering identical logic operations. Verify pin compatibility between the DIP and SOIC packages if replacing through-hole designs. Check datasheets for minor variations in propagation delay or power consumption between different manufacturers' AS-series implementations.