Alternatives to onsemi MC74LCX244DT
onsemi MC74LCX244DT 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 MC74LCX244DT
 MC74LCX244DTonsemi | MC74LCX244DTGonsemi | MC74LCX244DTR2Gonsemi | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Identical TSSOP-20 package and exact pinout assignments.Identical physical dimensions and TSSOP-20 land pattern.Same logic series, voltage, current drive, and timing characteristics. | Identical TSSOP-20 package and exact pinout assignments.Identical physical dimensions and TSSOP-20 land pattern.Same logic series, voltage, current drive, and timing characteristics. | ||
 AI Summary | MC74LCX244DT by onsemi: Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-TSSOP. | The MC74LCX244DTG is the direct lead-free (Pb-free) equivalent of the obsolete MC74LCX244DT, shipped in tube/rail packaging. It preserves all electrical and physical parameters, allowing an instant drop-in replacement with zero design adjustments.
| The MC74LCX244DTR2G is the active, lead-free (Pb-free) Tape & Reel version of the obsolete MC74LCX244DT. It is electrically and physically identical, offering an immediate drop-in solution for volume manufacturing.
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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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| —— ————— | ———— —————— | —— ————— ——— | ——————— ———— |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 74LCX244TTRSTMicroelectronics | Discontinued | Obsolete | 7Alternatives availableSee Alternatives |
 MC74LCX157DTonsemi | In stock | Obsolete | 3Alternatives availableSee Alternatives |
 MC74ACT241DTonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| MC74LCX157DTGonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 MC74HC541ADTonsemi | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 MC74ACT240DWonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi MC74LCX244DT 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 MC74LCX244DT are the MC74LCX244DTG (onsemi) and the MC74LCX244DTR2G (onsemi), 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 MC74LCX244DT 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 MC74LCX244DT (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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