Alternatives to Texas Instruments SN74LS138N
Texas Instruments SN74LS138N and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 SN74LS138NTexas Instruments | SN74LS138NE4Texas Instruments | SN74ALS138ANTexas Instruments | +3more | |
|---|---|---|---|---|
| FFF Compatibility | The pinout and package are identical to the SN74LS138N, fitting the same 16-DIP footprint.Uses the same 16-PDIP package form factor and mechanical dimensions.Electrical specs, voltage range (4.75V to 5.25V), and timing characteristics match perfectly. | Features the exact same DIP-16 pinout configuration.Packaged in the same 16-PDIP style.Designed as an advanced bipolar TTL series upgrade, meeting or exceeding all speed and power characteristics. | ||
 AI Summary | SN74LS138N by Texas Instruments: Decoder/Demultiplexer 1 x 3:8 16-PDIP. | This is the official Pb-Free/RoHS-compliant direct equivalent of the original part number, offering identical form, fit, and function.
| The SN74ALS138AN is an Advanced Low-Power Schottky (ALS) drop-in replacement that improves circuit speed while reducing power consumption.
| |
| Lifecycle Status | Active | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Decoder/Demultiplexer 1 x 3:8 16-PDIP | Decoder/Demultiplexer 1 x 3:8 16-PDIP | Decoder/Demultiplexer 1 x 3:8 16-PDIP | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | |
| Type | Logic | Logic | Logic | |
| Datasheet | Open | Open | Open | |
| Lead Time | 16 weeks | 16 weeks | 9 weeks | |
| Country of Origin | MX, MY, US, TW | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0070 | - | - | |
| Moisture Sensitivity Level | Not Applicable | - | - | |
| Type | Decoder/Demultiplexer | - | - | |
| Circuit | 1 x 3:8 | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | 16-DIP (0.300", 7.62mm) | - | - | |
| Voltage - Supply | 4.75V ~ 5.25V | - | - | |
| Independent Circuits | 1 | - | - | |
| Operating Temperature | 0°C ~ 70°C | - | - | |
| Voltage Supply Source | Single Supply | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SN74LS13NTexas Instruments | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
| SN74LS123Nonsemi | Discontinued | Obsolete | 3Alternatives 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 SN74LS138N is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.
The closest qualified second sources for the Texas Instruments SN74LS138N are the SN74LS138NE4 (Texas Instruments) and the SN74ALS138AN (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 SN74LS138N 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 SN74LS138N (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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