SN74ALS166NAlternatives & Equivalent Parts
About SN74ALS166N
SN74ALS166N 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 | SN74ALS166NSource | SN74ALS166NS | SN74ALS166D | SN74ALS166NSR | SN74ALS166DRE4 |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Dual-In-Line Packages | Small Outline Packages | Other | Small Outline Packages | Small Outline Packages |
| Pin Count | 16 | 16 | 16 | 16 | 16 |
| Temperature Range | ~ 70.0°C | — | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C |
| Price | $3.7463 | $1.8400 | $2.1840 | — | — |
| Electrical Parameters | |||||
| YTEOL | 15 | — | 0 | 15 | 0 |
| Additional Feature | SISO OPERATION ALSO AVAILABLE | — | SISO OPERATION ALSO AVAILABLE | SISO OPERATION ALSO AVAILABLE | SISO OPERATION ALSO AVAILABLE |
| Count Direction | RIGHT | — | RIGHT | RIGHT | RIGHT |
| Family | ALS | — | ALS | ALS | ALS |
| JESD-30 Code | R-PDIP-T16 | — | R-PDSO-G16 | R-PDSO-G16 | R-PDSO-G16 |
| JESD-609 Code | e4 | — | e4 | e4 | e4 |
| Load Capacitance (CL) | 50 pF | — | 50 pF | 50 pF | 50 pF |
| Logic IC Type | PARALLEL IN SERIAL OUT | — | PARALLEL IN SERIAL OUT | PARALLEL IN SERIAL OUT | PARALLEL IN SERIAL OUT |
| Max Frequency@Nom-Sup | 45000000 Hz | — | 45000000 Hz | 45000000 Hz | 45000000 Hz |
| 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 |
| Output Polarity | TRUE | — | TRUE | TRUE | TRUE |
| Package Body Material | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 | — | SOP16,.25 | DIP16,.3 | SOP16,.25 |
| Package Shape | RECTANGULAR | — | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | — | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TUBE | — | TUBE | TR | TR, 13 INCH |
| Power Supply Current-Max (ICC) | 24 mA | — | 24 mA | 24 mA | 24 mA |
| Prop. Delay@Nom-Sup | 13 ns | — | 13 ns | 13 ns | — |
| Propagation Delay (tpd) | 13 ns | — | 13 ns | 13 ns | 13 ns |
| Qualification Status | Not Qualified | — | Not Qualified | Not Qualified | Not Qualified |
| Schmitt Trigger | NO | — | NO | NO | — |
| Supply Voltage-Max (Vsup) | 5.5 V | — | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage-Min (Vsup) | 4.5 V | — | 4.5 V | 4.5 V | 4.5 V |
| Supply Voltage-Nom (Vsup) | 5 V | — | 5 V | 5 V | 5 V |
| Surface Mount | NO | — | YES | YES | YES |
| Technology | TTL | — | TTL | TTL | TTL |
| Temperature Grade | COMMERCIAL | — | COMMERCIAL | COMMERCIAL | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | — | NICKEL PALLADIUM GOLD | Nickel/Palladium/Gold (Ni/Pd/Au) | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE | — | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 2.54 mm | — | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | — | DUAL | DUAL | DUAL |
| Trigger Type | POSITIVE EDGE | — | POSITIVE EDGE | POSITIVE EDGE | POSITIVE EDGE |
| fmax-Min | 45 MHz | — | 45 MHz | 45 MHz | 45 MHz |
| Peak Reflow Temperature (Cel) | — | — | 260 | 260 | 260 |
| Time@Peak Reflow Temperature-Max (s) | — | — | 30 | 30 | 30 |
| Pbfree Code | — | — | — | Yes | Yes |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Parallel In Serial Out, ALS Series, 8-Bit, Right Direction, True Output, TTL, PDSO16
Parallel In Serial Out, ALS Series, 8-Bit, Right Direction, True Output, TTL, PDSO16
Parallel In Serial Out, ALS Series, 8-Bit, Right Direction, True Output, TTL, PDSO16
Why Look for Alternatives?
Finding alternatives for SN74ALS166N 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 SN74ALS166N 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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What is equivalent to SN74ALS166N?
Known equivalents for SN74ALS166N include SN74ALS166NS, SN74ALS166D, SN74ALS166NSR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74ALS166N?
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 SN74ALS166N 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.