Alternatives to Texas Instruments SN74LV123AD
Texas Instruments SN74LV123AD and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 SN74LV123ADTexas Instruments | SN74LV123ADRTexas Instruments |  74VHC123AMXonsemi | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Direct drop-in replacement with an identical pinout layout.Matches the exact physical SOIC-16 dimensions and lead pitch.Identical logic, drive strength (12 mA), and timing specifications. | Perfect pin-to-pin mapping for all control, trigger, external component, and output pins.Standard SOIC-16 package dimensions are identical.Reduced output drive current (8 mA vs 12 mA) and narrower operating temperature range (-40°C to 85°C vs -40°C to 125°C). | ||
 AI Summary | SN74LV123AD by Texas Instruments: Monostable Multivibrator 13 ns 16-SOIC. | This is the active tape-and-reel packaged equivalent of the obsolete SN74LV123AD. It is an exact drop-in sibling that requires no hardware or schematic changes.
| An active second-source logic part from onsemi that fits the exact same footprints. It offers faster response times but trades off maximum drive strength and temperature tolerance.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Monostable Multivibrator 13 ns 16-SOIC | Monostable Multivibrator 13 ns 16-SOIC | Monostable Multivibrator 8.1 ns 16-SOIC | |
| Manufacturer | Texas Instruments | Texas Instruments | onsemi | |
| Type | Logic | Logic | Logic | |
| Datasheet | Open | Open | Open | |
| Lead Time | 6 weeks | 9 weeks | 14 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0070 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Logic Type | Monostable | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | - | - | |
| Voltage - Supply | 2 V ~ 5.5 V | - | - | |
| Propagation Delay | 13 ns | - | - | |
| Independent Circuits | 2 | - | - | |
| Operating Temperature | -40°C ~ 125°C | - | - | |
| Schmitt Trigger Input | Yes | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SN74LV123ADRTexas Instruments | In stock | Active | 3Alternatives availableSee Alternatives |
 SN74LV123APWTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
| SN74LS123Donsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
| SN74LS123Nonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 SN74LVC245ADWTexas Instruments | In stock | Active | 5Alternatives availableSee Alternatives |
 SN74LVC1G123DCTTTexas Instruments | In stock | Active | 6Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments SN74LV123AD 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 Texas Instruments SN74LV123AD are the SN74LV123ADR (Texas Instruments) and the 74VHC123AMX (onsemi), 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 SN74LV123AD 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 SN74LV123AD (Texas Instruments) 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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