DM74ALS374WM

Overview

The DM74ALS374WM is an octal 3-state D-type edge-triggered flip-flop manufactured by Fairchild Semiconductor. It features totem-pole outputs designed for driving highly-capacitive or low-impedance loads. The device operates within a voltage range of 4.75 V to 5.25 V and supports a clock frequency up to 20 MHz. It is housed in a 20-lead Small Outline Integrated Circuit (SOIC) package, specifically the M20B JEDEC MS-020 variant.

Feature Summary

• Octal configuration with independent D-type edge-triggered flip-flops
• Totem-pole 3-state outputs for direct bus connection without pull-up components
• High-logic level drive capability for low-impedance loads

Applications

• Buffer registers in digital systems
• I/O port implementations
• Bidirectional bus drivers
• Working registers in microprocessor architectures

Procurement Notes

Verify the specific ordering suffix 'WM' corresponds to the 20-lead SOIC package and lead-free composition as defined in the official Fairchild datasheet. Confirm that the manufacturer designation aligns with current ON Semiconductor holdings following the acquisition of Fairchild Semiconductor assets. Ensure the component meets the required environmental standards specified in the product documentation.

Selection Notes

Select this component when an octal register with high-drive 3-state outputs is required for bus-oriented systems. It is suitable for applications needing direct connection to bus lines without interface components. Consider the 20 MHz clock limit and 4.75 V to 5.25 V supply range for compatibility with standard TTL logic families.

Part Context

This part belongs to the 74ALS series of logic devices, known for improved speed-power product compared to earlier LS counterparts. The DM74ALS374WM specifically provides octal storage capabilities. It is part of a broader family including latches like the DM74LS373, offering complementary functionality for sequential logic design in industrial and commercial electronics.

Replacement Considerations

Compatible substitutes include the DM74AS374WM for faster performance or the DM74LS374WM for standard speed requirements. Verify pinout compatibility and electrical specifications before substitution.