SN74LS148NAlternatives & Equivalent Parts
About SN74LS148N
SN74LS148N 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.
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Specification Comparison
| Parameter | SN74LS148NSource | SN74LS148D | SN74LS148DG4 | SN74LS138D | LP3990SD-1.2/NOPB | B540C-13-F |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Diodes Inc. |
| Package Type | Dual-In-Line Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline No-lead | Diodes Moulded |
| Pin Count | 16 | 16 | 16 | 16 | 6 | 2 |
| Temperature Range | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C | -40.0°C ~ 125.0°C | -55.0°C ~ 125.0°C |
| Price | $1.0695 | $0.7074 | $0.8450 | $0.0853 | $0.2877 | $0.1116 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | OBSOLETE | OBSOLETE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||
| Pbfree Code | Yes | — | — | Yes | Yes | No |
| YTEOL | 15 | 0 | 0 | 15 | 15 | 6.12 |
| Additional Feature | 8 TO 3 LINE PRIORITY ENCODER; CASCADABLE; WITH GROUP SELECT OUTPUT | 8 TO 3 LINE PRIORITY ENCODER; CASCADABLE; WITH GROUP SELECT OUTPUT | 8 TO 3 LINE PRIORITY ENCODER; CASCADABLE; WITH GROUP SELECT OUTPUT | 3 ENABLE INPUTS | — | FREE WHEELING DIODE, LOW POWER LOSS |
| Family | LS | LS | LS | LS | — | — |
| JESD-30 Code | R-PDIP-T16 | R-PDSO-G16 | R-PDSO-G16 | R-PDSO-G16 | S-PDSO-N6 | R-PDSO-C2 |
| JESD-609 Code | e4 | e4 | e4 | e4 | e3 | e3 |
| Load Capacitance (CL) | 15 pF | 15 pF | 15 pF | 15 pF | — | — |
| Logic IC Type | ENCODER | ENCODER | ENCODER | 3-LINE TO 8-LINE DECODER | — | — |
| Max I(ol) | 0.008 A | 0.008 A | — | 0.008 A | — | — |
| Number of Bits | 8 | 8 | 8 | 8 | — | — |
| Number of Functions | 1 | 1 | 1 | 1 | 1 | — |
| Output Polarity | INVERTED | INVERTED | INVERTED | INVERTED | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 | SOP16,.25 | SOP16,.25 | SOP16,.25 | SOLCC6,.12,20 | — |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | SQUARE | RECTANGULAR |
| Package Style | IN-LINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE | SMALL OUTLINE |
| Packing Method | TUBE | TUBE | TUBE | TUBE | TR | — |
| Power Supply Current-Max (ICC) | 10 mA | 10 mA | 60 mA | 10 mA | — | — |
| Prop. Delay@Nom-Sup | 19 ns | 19 ns | — | 41 ns | — | — |
| Propagation Delay (tpd) | 36 ns | 36 ns | 36 ns | 41 ns | — | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25 V | 5.25 V | 5.25 V | 5.25 V | — | — |
| Supply Voltage-Min (Vsup) | 4.75 V | 4.75 V | 4.75 V | 4.75 V | — | — |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | 5 V | 5 V | — | — |
| Surface Mount | NO | YES | YES | YES | YES | YES |
| Technology | TTL | TTL | TTL | BIPOLAR | CMOS | SCHOTTKY |
| Temperature Grade | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | — | — |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | NICKEL PALLADIUM GOLD | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE | GULL WING | GULL WING | GULL WING | NO LEAD | C BEND |
| Terminal Pitch | 2.54 mm | 1.27 mm | 1.27 mm | 1.27 mm | 0.95 mm | — |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL |
| ## SN74LS148N Alternates Showing results | Image | — | — | — | — | — |
| Peak Reflow Temperature (Cel) | — | 260 | 260 | 260 | 260 | 255 |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | 30 | 30 | 30 | 30 |
| ## SN74LS148D Alternates Showing results | — | Image | — | — | — | — |
| ## SN74LS148DG4 Alternates Showing results | — | — | Image | — | — | — |
| Input Conditioning | — | — | — | STANDARD | — | — |
| ## SN74LS138D Alternates Showing results | — | — | — | Image | — | — |
| Adjustability | — | — | — | — | FIXED | — |
| Dropout Voltage1-Max | — | — | — | — | 0.2 V | — |
| Dropout Voltage1-Nom | — | — | — | — | 0.12 V | — |
| Input Voltage Absolute-Max | — | — | — | — | 6.5 V | — |
| Input Voltage-Max | — | — | — | — | 6 V | — |
| Input Voltage-Min | — | — | — | — | 2 V | — |
| Line Regulation-Max | — | — | — | — | 0.00456% | — |
| Load Regulation-Max | — | — | — | — | 0.00894% | — |
| Number of Outputs | — | — | — | — | 1 | — |
| Operating Temperature TJ-Max | — | — | — | — | 125 °C | — |
| Operating Temperature TJ-Min | — | — | — | — | -40 °C | — |
| Output Current1-Max | — | — | — | — | 0.15 A | — |
| Output Voltage1-Max | — | — | — | — | 1.236 V | — |
| Output Voltage1-Min | — | — | — | — | 1.164 V | — |
| Output Voltage1-Nom | — | — | — | — | 1.2 V | — |
| Regulator Type | — | — | — | — | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | — |
| Voltage Tolerance-Max | — | — | — | — | 3% | — |
| Manufacturer Package Code | — | — | — | — | — | SMC |
| Application | — | — | — | — | — | EFFICIENCY |
| Configuration | — | — | — | — | — | SINGLE |
| Diode Element Material | — | — | — | — | — | SILICON |
| Diode Type | — | — | — | — | — | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | — | — | — | — | — | 0.55 V |
| Non-rep Pk Forward Current-Max | — | — | — | — | — | 100 A |
| Number of Elements | — | — | — | — | — | 1 |
| Number of Phases | — | — | — | — | — | 1 |
| Output Current-Max | — | — | — | — | — | 5 A |
| Rep Pk Reverse Voltage-Max | — | — | — | — | — | 40 V |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Why Look for Alternatives?
Finding alternatives for SN74LS148N 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 SN74LS148N 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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FAQ
What is equivalent to SN74LS148N?
Known equivalents for SN74LS148N include SN74LS148D, SN74LS148DG4, SN74LS138D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74LS148N?
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 SN74LS148N 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.