DM74AS08M

Inverter Gates Overview

The DM74AS08M is a quad 2-input AND gate integrated circuit manufactured by Fairchild Semiconductor. It belongs to the AS (Advance Schottky) logic family and operates within a supply voltage range of 4.5V to 5.5V. The device features four independent AND gates, each with two inputs, housed in a 14-pin Small Outline Integrated Circuit (SOIC) package. Key electrical specifications include a maximum propagation delay of 5.5ns at 5V with a 50pF load, low input logic level of 0.8V, and high input logic level of 2V. Output drive capabilities are specified as 2mA for high state and 20mA for low state. The component supports surface mount installation and functions reliably across an operating temperature range of 0°C to 70°C.

Inverter Gates Feature Summary

• Advanced Schottky process technology providing improved switching performance with reduced power dissipation compared to standard Schottky counterparts.
• Functional and pin compatibility with 74LS and standard Schottky logic families, facilitating direct replacement in existing designs.
• High impedance input characteristics designed to minimize loading effects on transmission lines in memory and microprocessor systems.

Inverter Gates Applications

• Memory interface buffering in computer systems
• Microprocessor data bus control logic
• Communication system signal gating

Inverter Gates Procurement Notes

Verify the specific manufacturer marking and date code against original Fairchild Semiconductor documentation, as this part may be sourced from third-party distributors or legacy stock. Confirm that the SOIC-14 package dimensions match the MS-012 JEDEC standard. Ensure the logic family designation aligns with project requirements for Advance Schottky performance levels before finalizing procurement decisions.

Inverter Gates Selection Notes

Select this component when designing circuits requiring fast switching speeds with moderate power consumption. The 14-SOIC package is suitable for automated surface-mount assembly processes. Consider the 5.5ns propagation delay for timing-critical applications. Verify that the 4.5V to 5.5V supply voltage range matches the system power rails. Check if the commercial temperature range meets environmental constraints.

Inverter Gates Part Context

This device is part of the broader 74AS series of logic ICs, known for their speed-power product optimization. The DM74AS08M specifically implements the AND logic function, serving as a fundamental building block for digital logic design. It shares architectural similarities with other members of the AS family, such as the DM74AS32 (OR gate) and DM74AS04 (NOT gate), allowing for mixed-function logic boards using consistent manufacturing processes.

Inverter Gates Replacement Considerations

Equivalent parts include SN74AS08D and SN74AS08DR from Texas Instruments, which offer parameter equivalence. These alternatives maintain the same logical function and pinout configuration, ensuring compatibility in existing footprints without requiring schematic modifications.