Alternatives to onsemi DM74ALS244AWM
onsemi DM74ALS244AWM and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 DM74ALS244AWMonsemi |  MC74ACT244DWGonsemi |  SN74LS244DWRTexas Instruments | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Matches the original 20-SOIC footprint and JEDEC pinout assignment.Same physical package dimensions and surface-mount style.Features TTL-compatible inputs and meets or exceeds the supply voltage range and output drive current of the original ALS part. | Uses the identical 20-SOIC footprint and JEDEC pinout.Identical mounting style and physical dimensions.Supply voltage range is slightly narrower (4.75V to 5.25V vs the original's 4.5V to 5.5V). | ||
 AI Summary | DM74ALS244AWM by onsemi: Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC. | This is a highly reliable, active drop-in replacement from the same manufacturer. It uses high-speed CMOS technology with TTL-compatible inputs (ACT), offering superior output drive capabilities and a wider operating temperature range compared to the obsolete ALS device.
| This part represents a direct match in legacy bipolar technology, featuring the exact same output drive currents as the original device. However, its recommended supply voltage range is slightly narrower, which requires a more tightly regulated 5V power rail.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC | Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC | Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC | |
| Manufacturer | onsemi | onsemi | Texas Instruments | |
| Type | Logic | Logic | Logic | |
| Datasheet | Open | Open | Open | |
| Lead Time | 18 weeks | 29 weeks | 6 weeks | |
| Country of Origin | DE | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0060 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Logic Type | Buffer, Non-Inverting | - | - | |
| Output Type | 3-State | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | - | - | |
| Voltage - Supply | 4.5V ~ 5.5V | - | - | |
| Number of Elements | 2 | - | - | |
| Operating Temperature | 0°C ~ 70°C (TA) | - | - | |
| Supplier Device Package | 20-SOIC | - | - |
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Frequently asked questions
Yes. The onsemi DM74ALS244AWM 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 DM74ALS244AWM are the MC74ACT244DWG (onsemi) and the SN74LS244DWR (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 DM74ALS244AWM 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 DM74ALS244AWM (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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