Alternatives to Texas Instruments SN74HCT138D
Texas Instruments SN74HCT138D and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 SN74HCT138DTexas Instruments | SN74HCT138DRTexas Instruments |  74HCT138D,653Nexperia USA Inc. | +2more | |
|---|---|---|---|---|
| FFF Compatibility | The part shares the identical SOIC-16 footprint and pin assignments.Both parts use the exact same JEDEC MS-012 AC SOIC-16 body package (9.90 mm x 3.90 mm).They are identical in electrical behavior and performance specifications. | Maintains the exact same 16-pin SOIC pinout and footprint arrangement.Standard 16-pin SOIC package matching the original physical form factor.Electrical parameters meet or exceed the original, with an upgraded maximum temperature limit. | ||
 AI Summary | SN74HCT138D by Texas Instruments: Decoder/Demultiplexer 1 x 3:8 16-SOIC. | This is the direct tape-and-reel (R suffix) packaging variant of the original tube-packaged (SN74HCT138D) part. It uses the exact same silicon die and SOIC-16 package, providing a seamless drop-in replacement for any design.
| Nexperia's 74HCT138 is a highly reliable, second-source alternative that provides full footprint and logical equivalence. Additionally, it offers an upgraded industrial temperature ceiling of +125°C compared to the original TI part's +85°C limit.
| |
| 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-SO | |
| Manufacturer | Texas Instruments | Texas Instruments | Nexperia USA Inc. | |
| Type | Logic | Logic | Logic | |
| Datasheet | Open | Open | Open | |
| Lead Time | 6 weeks | 9 weeks | 20 weeks | |
| Country of Origin | CN | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0070 | - | - | |
| 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 | 4.5V ~ 5.5V | - | - | |
| 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 |
|---|---|---|---|
 SN74HC138DTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| SN74HC138DRTexas Instruments | In stock | Active | 5Alternatives availableSee Alternatives |
 SN74HCT138PWTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 SN74HCT125DTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 SN74HCT541DWTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| SN74ACT32DTexas Instruments | In stock | Obsolete | 6Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments SN74HCT138D 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 SN74HCT138D are the SN74HCT138DR (Texas Instruments) and the 74HCT138D,653 (Nexperia USA Inc.), 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 SN74HCT138D 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 SN74HCT138D (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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