SN74LS138NAlternatives & Equivalent Parts
About SN74LS138N
SN74LS138N is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Dual-In-Line Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | SN74LS138NSource | SN54LS138J | SN74LS138NE4 | SN74LS08DR |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Dual-In-Line Packages | Ceramic Dual-In-Line Packages | Dual-In-Line Packages | Small Outline Packages |
| Pin Count | 16 | 16 | 16 | 14 |
| Temperature Range | ~ 70.0°C | -55.0°C ~ 125.0°C | ~ 70.0°C | ~ 70.0°C |
| Price | $0.4271 | $7.7700 | $0.4430 | $0.2000 |
| Electrical Parameters | ||||
| JESD-30 Code | R-PDIP-T16 | R-CDIP-T16 | R-PDIP-T16 | R-PDSO-G14 |
| JESD-609 Code | e4 | e0 | e4 | e4 |
| Load Capacitance (CL) | 15 pF | 15 pF | 15 pF | 15 pF |
| Logic IC Type | 3-LINE TO 8-LINE DECODER | 3-LINE TO 8-LINE DECODER | 3-LINE TO 8-LINE DECODER | AND GATE |
| Pbfree Code | Yes | Yes | Yes | Yes |
| YTEOL | 15 | 15 | 15 | 15 |
| Additional Feature | 3 ENABLE INPUTS | 3 ENABLE INPUTS | 3 ENABLE INPUTS | — |
| Family | LS | LS | LS | LS |
| Input Conditioning | STANDARD | STANDARD | STANDARD | — |
| Max I(ol) | 0.008 A | 0.004 A | 0.008 A | 0.016 A |
| Number of Bits | 8 | 8 | 8 | — |
| Number of Functions | 1 | 1 | 1 | 4 |
| Output Polarity | INVERTED | INVERTED | INVERTED | — |
| Package Body Material | PLASTIC/EPOXY | CERAMIC, METAL-SEALED COFIRED | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 | DIP16,.3 | DIP16,.3 | SOP14,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | IN-LINE | IN-LINE | SMALL OUTLINE |
| Packing Method | TUBE | TUBE | TUBE | TR |
| Power Supply Current-Max (ICC) | 10 mA | 10 mA | 10 mA | 8.8 mA |
| Prop. Delay@Nom-Sup | 41 ns | 41 ns | 41 ns | 20 ns |
| Propagation Delay (tpd) | 41 ns | 41 ns | 41 ns | 20 ns |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25 V | 5.5 V | 5.25 V | 5.25 V |
| Supply Voltage-Min (Vsup) | 4.75 V | 4.5 V | 4.75 V | 4.75 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | 5 V | 5 V |
| Surface Mount | NO | NO | NO | YES |
| Technology | BIPOLAR | BIPOLAR | BIPOLAR | TTL |
| Temperature Grade | COMMERCIAL | MILITARY | COMMERCIAL | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Tin/Lead (Sn/Pb) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | GULL WING |
| Terminal Pitch | 2.54 mm | 2.54 mm | 2.54 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL |
| ## SN74LS138N Alternates Showing results | Image | — | — | — |
| ## SN74LS138NE4 Alternates Showing results | — | — | Image | — |
| Number of Inputs | — | — | — | 2 |
| Peak Reflow Temperature (Cel) | — | — | — | 260 |
| Schmitt Trigger | — | — | — | NO |
| Time@Peak Reflow Temperature-Max (s) | — | — | — | 30 |
| ## SN74LS08DR Alternates Showing results | — | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Motorola Semiconductor Products LS Series, Inverted Output, TTL, CDIP16
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Why Look for Alternatives?
Finding alternatives for SN74LS138N is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating SN74LS138N replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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Request Alternatives for SN74LS138NFAQ
What is equivalent to SN74LS138N?
Known equivalents for SN74LS138N include SN54LS138J, SN74LS138NE4, SN74LS08DR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74LS138N?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify SN74LS138N alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.