Part Details for SN74LS138N by Texas Instruments
Results Overview of SN74LS138N by Texas Instruments
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (9 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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SN74LS138N Information
SN74LS138N by Texas Instruments is a Decoder/Driver.
Decoder/Drivers are under the broader part category of Logic Components.
Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.
US Tariff Estimator: SN74LS138N by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
Part Details for SN74LS138N
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SN74LS138N Part Data Attributes
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SN74LS138N
Texas Instruments
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SN74LS138N
Texas Instruments
3-line to 8-line decoder / demultiplexer 16-PDIP 0 to 70
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
| Part Package Code | DIP | |
| Package Description | DIP, DIP16,.3 | |
| Pin Count | 16 | |
| Reach Compliance Code | Compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Samacsys Manufacturer | Texas Instruments | |
| Additional Feature | 3 ENABLE INPUTS | |
| Family | LS | |
| Input Conditioning | STANDARD | |
| JESD-30 Code | R-PDIP-T16 | |
| JESD-609 Code | e4 | |
| Length | 19.305 mm | |
| Load Capacitance (CL) | 15 pF | |
| Logic IC Type | 3-LINE TO 8-LINE DECODER | |
| Max I(ol) | 0.008 A | |
| Number of Bits | 8 | |
| Number of Functions | 1 | |
| Number of Terminals | 16 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Polarity | INVERTED | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | DIP | |
| Package Equivalence Code | DIP16,.3 | |
| Package Shape | RECTANGULAR | |
| Package Style | IN-LINE | |
| Packing Method | TUBE | |
| Power Supply Current-Max (ICC) | 10 mA | |
| Prop. Delay@Nom-Sup | 41 ns | |
| Propagation Delay (tpd) | 41 ns | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 5.08 mm | |
| Supply Voltage-Max (Vsup) | 5.25 V | |
| Supply Voltage-Min (Vsup) | 4.75 V | |
| Supply Voltage-Nom (Vsup) | 5 V | |
| Surface Mount | NO | |
| Technology | TTL | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | THROUGH-HOLE | |
| Terminal Pitch | 2.54 mm | |
| Terminal Position | DUAL | |
| Width | 7.62 mm |
Alternate Parts for SN74LS138N
This table gives cross-reference parts and alternative options found for SN74LS138N. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN74LS138N, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| SN74LS138JD | Motorola Mobility LLC | Check for Price | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDIP16, CERAMIC, DIP-16 | SN74LS138N vs SN74LS138JD |
| SN54LS138J | Texas Instruments | Check for Price | 3-Line To 8-Line Decoders/Demultiplexers 16-CDIP -55 to 125 | SN74LS138N vs SN54LS138J |
| 74LS138B | NXP Semiconductors | Check for Price | IC LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16, Decoder/Driver | SN74LS138N vs 74LS138B |
| SN74LS138JDS | Motorola Mobility LLC | Check for Price | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDIP16, CERAMIC, DIP-16 | SN74LS138N vs SN74LS138JDS |
| 74LS138B | Philips Semiconductors | Check for Price | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16 | SN74LS138N vs 74LS138B |
| SN74LS138NE4 | Texas Instruments | Check for Price | 3-line to 8-line decoder / demultiplexer 16-PDIP 0 to 70 | SN74LS138N vs SN74LS138NE4 |
| JM38510/30701SEA | Texas Instruments | Check for Price | 3-Line To 8-Line Decoders/Demultiplexers 16-CDIP -55 to 125 | SN74LS138N vs JM38510/30701SEA |
| SN54LS138JD | Motorola Mobility LLC | Check for Price | LS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDIP16, CERAMIC, DIP-16 | SN74LS138N vs SN54LS138JD |
| N74LS138B | Signetics | Check for Price | Decoder/Driver, LS Series, Inverted Output, TTL, PDIP16 | SN74LS138N vs N74LS138B |
SN74LS138N Frequently Asked Questions (FAQ)
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The maximum frequency of operation for the SN74LS138N is typically around 20-25 MHz, but this can vary depending on the specific application and operating conditions.
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To ensure proper operation, the SN74LS138N should be powered with a stable 5V supply, and decoupling capacitors (e.g. 0.1uF and 10uF) should be placed close to the device to filter out noise and reduce electromagnetic interference (EMI).
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The SN74LS138N can sink up to 24mA and source up to 12mA per output, but it's recommended to keep the current within the absolute maximum ratings to ensure reliable operation.
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The enable inputs (E1, E2, E3) should be driven with a valid logic level (either high or low) to enable or disable the decoder outputs. Floating or undefined enable inputs can cause unpredictable behavior.
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The propagation delay of the SN74LS138N is typically around 10-15ns, but this can vary depending on the specific application and operating conditions.