Alternatives to onsemi MM74HCT573WM
onsemi MM74HCT573WM and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for onsemi MM74HCT573WM
 MM74HCT573WMonsemi |  74HCT573D,653Nexperia USA Inc. |  SN74HCT573DWRTexas Instruments | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Same SOIC-20 package with identical 20-pin JEDEC pinout assignments.Matches physical dimensions (width 7.50mm / 0.295") and surface-mount style.Equivalent 8-bit transparent latch functionality with TTL-compatible inputs (HCT series). | Same SOIC-20 package with identical 20-pin JEDEC pinout assignments.Matches physical dimensions (width 7.50mm / 0.295") and surface-mount style.Equivalent 8-bit transparent latch functionality with TTL-compatible inputs (HCT series). | ||
 AI Summary | MM74HCT573WM by onsemi: D-Type Transparent Latch 1 Channel 8:8 IC Tri-State 20-SOIC. | This active drop-in replacement from Nexperia matches the original's 17ns propagation delay and physical package footprint. It features an extended operating temperature range up to 125°C, ensuring highly reliable operation in a long-lived product family.
| A widely available, active drop-in replacement from Texas Instruments utilizing the same SOIC-20 package and JEDEC pinout. It is an industry-standard logic component with long-term manufacturing support.
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| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 MM74HCT244WMonsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 MC74ACT573DWR2onsemi | In stock | Obsolete | 3Alternatives availableSee Alternatives |
 SN74AHC573PWTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 MM74HC688WMXonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 MM74HC4051MXonsemi | Non-stock | Obsolete | 3Alternatives availableSee Alternatives |
 74HCT257DNexperia | In stock | Obsolete | 3Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi MM74HCT573WM 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.
The closest qualified second sources for the onsemi MM74HCT573WM are the 74HCT573D,653 (Nexperia USA Inc.) and the SN74HCT573DWR (Texas Instruments), out of 5 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the MM74HCT573WM are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The MM74HCT573WM (onsemi) is a part in the Logic category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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