Alternatives to onsemi 74VHC244MX
onsemi 74VHC244MX and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 74VHC244MXonsemi |  MC74VHC244DWR2Gonsemi |  SN74AHC244DWRTexas Instruments | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Matches the exact pinout and 20-SOIC footprint of the obsolete 74VHC244MX.Matches the SOIC-20 wide body dimensions (7.50mm width) and surface-mount style.Operates over the identical 2.0V to 5.5V supply voltage with matching 8mA drive strength and CMOS-compatible inputs. | Pinout assignment and 20-pin SOIC layout are identical to the original part.Matches the standard 20-SOIC wide body physical dimensions (7.50mm package width).Fully compatible CMOS input thresholds and identical 2V to 5.5V supply range and 8mA drive capability. | ||
 AI Summary | 74VHC244MX by onsemi: Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC. | This is the direct brand-successor replacement from onsemi. It offers identical electrical and physical characteristics in the same SOIC-20 package, ensuring a risk-free drop-in replacement for the obsolete part. Additionally, it features an extended operating temperature range up to 125°C.
| The SN74AHC244DWR is Texas Instruments' direct functional and physical equivalent. As an active, long-lived CMOS buffer, it fits perfectly onto the existing board footprint with matching voltage and current specifications, providing a secure alternative supply source.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Non-stock | 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 | 99 weeks | 25 weeks | 9 weeks | |
| Country of Origin | CN, MY, US, PH, JP, TW | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| 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 | 2V ~ 5.5V | - | - | |
| Number of Elements | 2 | - | - | |
| Operating Temperature | -40°C ~ 85°C (TA) | - | - | |
| Supplier Device Package | 20-SOIC | - | - |
Unlock all 4 alternatives
- Find & compare verified second sources
- Spot risk early with real-time part monitoring
- Stay compliant and production-ready
You searched one part. Parter watches your whole BOM.
All your BOM, at once
Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.
Hear about problems before they hit production
Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.
Qualified replacements in minutes, not days
Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.
Frequently asked questions
Yes. The onsemi 74VHC244MX 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 74VHC244MX are the MC74VHC244DWR2G (onsemi) and the SN74AHC244DWR (Texas Instruments), out of 4 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 74VHC244MX 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 74VHC244MX (onsemi) is a part in the Logic category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
Schedule a demo
See Parter in action
Discover how Parter can help your hardware team:
- Streamline your hardware operations with AI
- Detect and prevent lifecycle disruptions
- Accelerate product development
- Stay compliant and production-ready