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Alternatives to onsemi DM74ALS574AWM

onsemi DM74ALS574AWM and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

DM74ALS574AWM compared against its qualified second sources
DM74ALS574AWMonsemiMC74ACT574DWGonsemiSN74ACT574DWRTexas Instruments+2more
FFF CompatibilityIdentical 20-pin SOIC package footprint and pinout assignment verified via datasheet pinout extraction.Matches the physical dimensions, pitch, and SMD mounting style of the original SOIC-20 wide package.Operates on the same 4.5V to 5.5V supply and provides TTL-compatible input logic levels, with improved power, speed, and drive.Identical 20-pin SOIC package footprint and pinout assignment verified via datasheet pinout extraction.Matches physical package width, pitch, and SMD mounting style of the original SOIC-20 wide package.Operates on the same 4.5V to 5.5V supply and provides TTL-compatible input logic levels, with improved power, speed, and drive.
AI Summary

DM74ALS574AWM by onsemi: Flip Flop 1 Element D-Type 8 Bit Positive Edge 20-SOIC (0.295", 7.50mm Width).

An active, high-performance CMOS upgrade from the same manufacturer. It uses TTL-compatible 74ACT logic to act as a direct electrical and physical drop-in replacement while drastically reducing quiescent power consumption.

  • Direct pin-to-pin drop-in replacement in the same SOIC-20 wide package (0.295" / 7.50mm width)
  • 74ACT technology offers TTL-compatible input levels making it fully compatible with existing 5V logic systems
  • Significantly lower quiescent current (8 uA max vs 18 mA for ALS) due to modern CMOS technology
  • Faster transition times may increase high-frequency noise or ringing on poorly terminated long board traces.

An active, second-source alternative from Texas Instruments using high-speed 74ACT logic. It offers a direct drop-in replacement with identical package dimensions, TTL-compatible inputs, and enhanced electrical performance.

  • Direct pin-to-pin drop-in replacement in the same SOIC-20 wide package (0.295" / 7.50mm width)
  • 74ACT technology ensures TTL-compatible input logic levels at 5V operation
  • Extremely low quiescent current of 4 uA max compared to the original 18 mA
  • Faster edge rates may require decoupling capacitor verification to prevent signal integrity issues.
Lifecycle StatusObsoleteActiveActive
Market AvailabilityIn stockIn stockIn stock
REACHUnknownREACHREACH
RoHSRoHSRoHSRoHS
DescriptionFlip Flop 1 Element D-Type 8 Bit Positive Edge 20-SOIC (0.295", 7.50mm Width)Flip Flop 1 Element D-Type 8 Bit Positive Edge 20-SOIC (0.295", 7.50mm Width)Flip Flop 1 Element D-Type 8 Bit Positive Edge 20-SOIC (0.295", 7.50mm Width)
ManufactureronsemionsemiTexas Instruments
TypeLogicLogicLogic
DatasheetOpenOpenOpen
Lead Time7 days10 weeks16 weeks
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8542.39.0001--
Moisture Sensitivity Level---
TypeD-Type--
FunctionStandard--
Output TypeTri-State, Non-Inverted--
Trigger TypePositive Edge--
Mounting TypeSurface Mount--
Package / Case20-SOIC (0.295", 7.50mm Width)--
Clock Frequency35 MHz--
Voltage - Supply4.5V ~ 5.5V--

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Frequently asked questions

Yes. The onsemi DM74ALS574AWM is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.

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