SN74LS155ADAlternatives & Equivalent Parts
About SN74LS155AD
SN74LS155AD is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | SN74LS155ADSource | SN74LS155ADR | SN74LS155ADRG4 |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages |
| Pin Count | 16 | 16 | 16 |
| Temperature Range | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C |
| Price | $0.3900 | $0.4480 | $0.5860 |
| Electrical Parameters | |||
| YTEOL | 0 | 15 | 0 |
| Additional Feature | USABLE AS 1 TO 8 DEMULTIPLEXER | USABLE AS 1 TO 8 DEMULTIPLEXER | USABLE AS 1 TO 8 DEMULTIPLEXER |
| Family | LS | LS | LS |
| Input Conditioning | STANDARD | STANDARD | STANDARD |
| JESD-30 Code | R-PDSO-G16 | R-PDSO-G16 | R-PDSO-G16 |
| JESD-609 Code | e4 | e4 | e4 |
| Load Capacitance (CL) | 15 pF | 15 pF | 15 pF |
| Logic IC Type | 2-LINE TO 4-LINE DECODER | 2-LINE TO 4-LINE DECODER | 2-LINE TO 4-LINE DECODER |
| Max I(ol) | 0.008 A | 0.008 A | 0.008 A |
| Number of Bits | 4 | 4 | 4 |
| Number of Functions | 2 | 2 | 2 |
| Output Characteristics | TOTEM POLE | TOTEM POLE | TOTEM POLE |
| Output Polarity | INVERTED | INVERTED | INVERTED |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 | SOP16,.25 | SOP16,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TUBE | TR | TR |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 |
| Power Supply Current-Max (ICC) | 10 mA | 10 mA | 10 mA |
| Prop. Delay@Nom-Sup | 27 ns | 27 ns | 27 ns |
| Propagation Delay (tpd) | 30 ns | 30 ns | 30 ns |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25 V | 5.25 V | 5.25 V |
| Supply Voltage-Min (Vsup) | 4.75 V | 4.75 V | 4.75 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | 5 V |
| Surface Mount | YES | YES | YES |
| Technology | TTL | TTL | TTL |
| Temperature Grade | COMMERCIAL | COMMERCIAL | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 |
| Pbfree Code | — | Yes | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Why Look for Alternatives?
Finding alternatives for SN74LS155AD 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 SN74LS155AD 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 SN74LS155ADFAQ
What is equivalent to SN74LS155AD?
Known equivalents for SN74LS155AD include SN74LS155ADR, SN74LS155ADRG4. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74LS155AD?
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 SN74LS155AD 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.