Alternatives to Texas Instruments SN74LS13N
Texas Instruments SN74LS13N and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 SN74LS13NTexas Instruments | SN74LS20NTexas Instruments |  CD74HC20ETexas Instruments | +1more | |
|---|---|---|---|---|
| FFF Compatibility | It shares the exact same 14-pin DIP pinout configuration as the original SN74LS13N, requiring no board layout changes.Both parts use the standard 14-pin PDIP (Plastic Dual-In-Line Package) format with identical mounting pitches.It lacks the Schmitt-trigger hysteresis inputs of the original device, making it unsuitable for noisy or slowly rising input signals. | It uses the identical 14-pin DIP pinout layout as the SN74LS13N and SN74LS20N.Both use the standard 14-pin PDIP (N) through-hole package.It utilizes CMOS logic levels instead of bipolar TTL thresholds and lacks Schmitt-trigger input hysteresis. | ||
 AI Summary | SN74LS13N by Texas Instruments: Logic Gates Dual 4-input Positive-NAND Schmitt triggers 14-PDIP 0 to 70. | The SN74LS20N is the most direct active pin-compatible replacement for the SN74LS13N. It provides the same dual 4-input NAND logic in an identical DIP-14 footprint, but it does not feature Schmitt-trigger input hysteresis. This makes it a great drop-in alternative if your application has clean, fast-slewing digital signals and does not rely on hysteresis for noise filtering or signal squaring.
| The CD74HC20E offers the same dual 4-input NAND logic and identical pinout using high-speed CMOS technology. This provides significantly reduced power consumption and a wider voltage range, but it lacks Schmitt-trigger inputs and operates on CMOS logic thresholds rather than bipolar TTL thresholds. This is an excellent alternative if you are migrating the circuit design to a lower-power CMOS architecture and do not require input hysteresis.
| |
| Lifecycle Status | Obsolete | Unknown | Active | |
| Market Availability | Discontinued | Unknown | In stock | |
| REACH | Unknown | Unknown | REACH | |
| RoHS | Unknown | Unknown | RoHS | |
| Description | Logic Gates Dual 4-input Positive-NAND Schmitt triggers 14-PDIP 0 to 70 | The SN74LS20N is the most direct active pin-compatible replacement for the SN74LS13N. It provides the same dual 4-input NAND logic in an ide | NAND Gate IC 2 Channel 14-PDIP | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | |
| Type | Logic Gates | Component | Logic | |
| Datasheet | Open | N/A | Open | |
| Lead Time | Unknown | Unknown | 9 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.00.70.00 | - | - | |
| Moisture Sensitivity Level | - | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
| SN74LS123Nonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 SN74LS138NTexas Instruments | In stock | Active | 5Alternatives availableSee Alternatives |
| SN74LS123Donsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 SN74LS374Nonsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 SN74LS161ANonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| SN74LS165ANTexas Instruments | In stock | Active | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments SN74LS13N 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 SN74LS13N are the SN74LS20N (Texas Instruments) and the CD74HC20E (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 SN74LS13N 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 SN74LS13N (Texas Instruments) is a part in the Logic Gates category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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