SNJ54LS399JAlternatives & Equivalent Parts
About SNJ54LS399J
SNJ54LS399J is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Ceramic 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 | SNJ54LS399JSource | SN74LS399N | SNJ54LS151J | SNJ54LS251J |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Ceramic Dual-In-Line Packages | Dual-In-Line Packages | Ceramic Dual-In-Line Packages | Ceramic Dual-In-Line Packages |
| Pin Count | 20 | 16 | 16 | 16 |
| Temperature Range | -55.0°C ~ 125.0°C | ~ 70.0°C | -55.0°C ~ 125.0°C | -55.0°C ~ 125.0°C |
| Price | $19.5882 | $0.7020 | $3.4180 | $1.6800 |
| Electrical Parameters | ||||
| Pbfree Code | Yes | — | Yes | Yes |
| YTEOL | 15 | 15 | 15 | 15 |
| Additional Feature | FOUR 2:1 MUX FOLLOWED BY REGISTER | FOUR 2:1 MUX FOLLOWED BY REGISTER | SN54S15J, SNJ54S15J THIS PARTS ARE REMOVED BECAUSE OF LEAF CLASS ISSUE, LG_MAX | LG MAX |
| Family | LS | LS | LS | LS |
| JESD-30 Code | R-GDIP-T16 | R-PDIP-T16 | R-GDIP-T16 | R-GDIP-T16 |
| JESD-609 Code | e0 | e4 | e0 | e0 |
| Load Capacitance (CL) | 15 pF | 15 pF | 15 pF | 5 pF |
| Logic IC Type | MULTIPLEXER | MULTIPLEXER | MULTIPLEXER | MULTIPLEXER |
| Max I(ol) | 0.004 A | 0.008 A | 0.004 A | 0.004 A |
| Number of Bits | 4 | 4 | 16 | 8 |
| Number of Functions | 4 | 4 | 1 | 1 |
| Number of Inputs | 2 | 2 | 8 | 8 |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Polarity | TRUE | TRUE | COMPLEMENTARY | COMPLEMENTARY |
| Package Body Material | CERAMIC, GLASS-SEALED | PLASTIC/EPOXY | CERAMIC, GLASS-SEALED | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 | DIP16,.3 | DIP16,.3 | DIP16,.3 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | IN-LINE | IN-LINE | IN-LINE |
| Packing Method | TUBE | TUBE | TUBE | TUBE |
| Power Supply Current-Max (ICC) | 13 mA | 13 mA | 10 mA | 10 mA |
| Prop. Delay@Nom-Sup | 32 ns | 32 ns | 38 ns | 45 ns |
| Propagation Delay (tpd) | 32 ns | 32 ns | 32 ns | 45 ns |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5 V | 5.25 V | 5.5 V | 5.5 V |
| Supply Voltage-Min (Vsup) | 4.5 V | 4.75 V | 4.5 V | 4.5 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | 5 V | 5 V |
| Surface Mount | NO | NO | NO | NO |
| Technology | TTL | TTL | TTL | TTL |
| Temperature Grade | MILITARY | COMMERCIAL | MILITARY | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) | Nickel/Palladium/Gold (Ni/Pd/Au) | Tin/Lead (Sn/Pb) | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE |
| Terminal Pitch | 2.54 mm | 2.54 mm | 2.54 mm | 2.54 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL |
| Trigger Type | POSITIVE EDGE | POSITIVE EDGE | — | — |
| Screening Level | — | — | MIL-PRF-38535 | MIL-PRF-38535 |
| Output Characteristics | — | — | — | 3-STATE |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Multiplexer, LS Series, 1-Func, True Output, TTL, PDIP16
Multiplexer, LS Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, CDIP16
Multiplexer, LS Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, CDIP16
Why Look for Alternatives?
Finding alternatives for SNJ54LS399J 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 SNJ54LS399J 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 SNJ54LS399JFAQ
What is equivalent to SNJ54LS399J?
Known equivalents for SNJ54LS399J include SN74LS399N, SNJ54LS151J, SNJ54LS251J. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SNJ54LS399J?
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 SNJ54LS399J 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.