Alternatives to Texas Instruments SN74HC138D
Texas Instruments SN74HC138D and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 SN74HC138DTexas Instruments | SN74HC138DRTexas Instruments |  MC74HC138ADR2Gonsemi | +2more | |
|---|---|---|---|---|
| FFF Compatibility | The pinout and package are identical to the original SN74HC138D.The physical dimensions and SOIC-16 footprint are identical.The electrical parameters and logic behavior match exactly. | The pinout and SOIC-16 package match the target part exactly.The physical SOIC-16 dimensions are compatible with the existing board footprint.The electrical specs (2V to 6V supply range and 5.2mA drive strength) meet or exceed the original part. | ||
 AI Summary | SN74HC138D by Texas Instruments: Decoder/Demultiplexer 1 x 3:8 16-SOIC. | This is the direct replacement from the original manufacturer, utilizing the exact same silicon and package dimensions but shipped in Tape & Reel packaging rather than Tube.
| An active drop-in alternative from onsemi with fully verified pinout and identical electrical characteristics, plus an expanded operating temperature range.
| |
| Lifecycle Status | Obsolete | 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-SOIC | Decoder/Demultiplexer 1 x 3:8 16-SOIC | Decoder/Demultiplexer 1 x 3:8 16-SOIC | |
| Manufacturer | Texas Instruments | Texas Instruments | onsemi | |
| Type | Logic | Logic | Logic | |
| Datasheet | Open | Open | Open | |
| Lead Time | 6 weeks | 16 weeks | 27 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Type | Decoder/Demultiplexer | - | - | |
| Circuit | 1 x 3:8 | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | - | - | |
| Voltage - Supply | 2V ~ 6V | - | - | |
| Independent Circuits | 1 | - | - | |
| Operating Temperature | -40°C ~ 85°C | - | - | |
| Voltage Supply Source | Single Supply | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SN74HC138DRTexas Instruments | In stock | Active | 5Alternatives availableSee Alternatives |
| SN74HCT138DTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 SN74HCT138PWTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 SN74AHC14DTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 SN74HC139NTexas Instruments | In stock | Active | 5Alternatives availableSee Alternatives |
| SN74F38DTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments SN74HC138D 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 SN74HC138D are the SN74HC138DR (Texas Instruments) and the MC74HC138ADR2G (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 SN74HC138D 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 SN74HC138D (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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