Alternatives to Nexperia 74HCT123D
Nexperia 74HCT123D and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 74HCT123DNexperia |  74HCT123D,653Nexperia USA Inc. |  CD74HCT123M96Texas Instruments | +1more | |
|---|---|---|---|---|
| FFF Compatibility | The part uses the identical SOT109-1 (SO16) package footprint and matches all pin assignments 1-to-1.The physical dimensions, lead pitch (1.27 mm), and surface-mount package shape are identical.Electrical specifications, supply voltage range (4.5V to 5.5V), and timing parameters are completely identical. | The 16-SOIC (D) package conforms to the identical SOT109-1 (SO16) footprint and pin assignments.The package dimensions and lead pitch are standard SOIC-16, fitting the same land pattern.Operates within the same supply range (4.5V to 5.5V) and meets or exceeds output drive capability (4mA). | ||
 AI Summary | 74HCT123D by Nexperia: Monostable Multivibrator 77 ns 16-SO. | This is the direct tape-and-reel packaging version of the identical silicon and package. While the original tube packaging variant (suffix ,652) is discontinued, the active ,653 variant provides a seamless drop-in replacement with no layout or electrical changes.
| This is a highly reliable second-source alternative from Texas Instruments in standard Tape & Reel packaging. It features faster propagation delay (typically 25 ns) and a wider operating temperature range, making it highly robust.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Monostable Multivibrator 77 ns 16-SO | Monostable Multivibrator 77 ns 16-SO | Monostable Multivibrator 25 ns 16-SOIC | |
| Manufacturer | Nexperia | Nexperia USA Inc. | Texas Instruments | |
| Type | Logic | Logic | Logic | |
| Datasheet | Open | Open | Open | |
| Lead Time | 52 weeks | 54 weeks | 9 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 | 4.5 V ~ 5.5 V | - | - | |
| Propagation Delay | 77 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 |
|---|---|---|---|
 74HCT138DNexperia | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 74HC139DNexperia | In stock | Last time buy | 4Alternatives availableSee Alternatives |
| 74HCT257DNexperia | In stock | Obsolete | 3Alternatives availableSee Alternatives |
 74HCT541DNexperia | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 74HC14DNexperia | Non-stock | Obsolete | 5Alternatives availableSee Alternatives |
| 74HC14D,653Nexperia | In stock | Active | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Nexperia 74HCT123D 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 Nexperia 74HCT123D are the 74HCT123D,653 (Nexperia USA Inc.) and the CD74HCT123M96 (Texas Instruments), out of 3 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 74HCT123D 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 74HCT123D (Nexperia) 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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