Alternatives to Texas Instruments SN74HC139N
Texas Instruments SN74HC139N and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 SN74HC139NTexas Instruments | CD74HC139ETexas Instruments | SN74HCT139NTexas Instruments | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Uses the exact same 16-pin PDIP package outline and layout as the original TI SN74HC139N.Through-hole PDIP-16 package with identical mechanical dimensions.Functionally identical dual 2-to-4 decoder/demultiplexer utilizing identical CMOS thresholds with an upgraded temperature ceiling. | Pinout and 16-DIP footprint are identical to the SN74HC139N.Matches the through-hole 16-PDIP mechanical physical dimensions.Uses TTL-compatible input levels (HCT family) instead of CMOS levels, and has a narrower supply voltage range (4.5V to 5.5V) compared to the original 2V to 6V. | ||
 AI Summary | SN74HC139N by Texas Instruments: Decoder/Demultiplexer 1 x 2:4 16-PDIP. | The CD74HC139E is a highly reliable direct drop-in replacement from Texas Instruments' legacy Harris CMOS line. It operates identically to the SN74HC139N while boasting a wider operating temperature range, making it ideal for harsh environments without needing any board changes.
| The SN74HCT139N is a pin-compatible alternative utilizing HCT (TTL-compatible input threshold) technology. It is highly suitable for 5V systems interfacing with TTL-level controllers, though it constrains the operating voltage range to 4.5V–5.5V and limits CMOS noise margins.
| |
| Lifecycle Status | Active | Unknown | Unknown | |
| Market Availability | In stock | Unknown | Unknown | |
| REACH | REACH | Unknown | Unknown | |
| RoHS | RoHS | Unknown | Unknown | |
| Description | Decoder/Demultiplexer 1 x 2:4 16-PDIP | The CD74HC139E is a highly reliable direct drop-in replacement from Texas Instruments' legacy Harris CMOS line. It operates identically to t | The SN74HCT139N is a pin-compatible alternative utilizing HCT (TTL-compatible input threshold) technology. It is highly suitable for 5V syst | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | |
| Type | Logic | Component | Component | |
| Datasheet | Open | N/A | N/A | |
| Lead Time | 9 weeks | Unknown | Unknown | |
| Country of Origin | MX, MY, PH, TW | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0070 | - | - | |
| Moisture Sensitivity Level | Not Applicable | - | - | |
| Type | Decoder/Demultiplexer | - | - | |
| Circuit | 1 x 2:4 | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | 16-DIP (0.300", 7.62mm) | - | - | |
| Voltage - Supply | 2V ~ 6V | - | - | |
| Independent Circuits | 2 | - | - | |
| Operating Temperature | -40°C ~ 85°C | - | - | |
| Voltage Supply Source | Single Supply | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SN74HC14NTexas Instruments | In stock | Active | 6Alternatives availableSee Alternatives |
 SN74HC138DTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| SN74HC138DRTexas Instruments | In stock | Active | 5Alternatives availableSee Alternatives |
| SN74HCT138DTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| SN74HC04NTexas Instruments | In stock | Active | 3Alternatives availableSee Alternatives |
 SN74LS13NTexas Instruments | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments SN74HC139N 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 SN74HC139N are the CD74HC139E (Texas Instruments) and the SN74HCT139N (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 SN74HC139N 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 SN74HC139N (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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