SN74HC251NAlternatives & Equivalent Parts
About SN74HC251N
SN74HC251N 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 | SN74HC251NSource | CD54HC251F | SN74HC251D |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Dual-In-Line Packages | Ceramic Dual-In-Line Packages | Small Outline Packages |
| Pin Count | 16 | 16 | 16 |
| Temperature Range | -40.0°C ~ 85.0°C | -55.0°C ~ 125.0°C | -40.0°C ~ 85.0°C |
| Price | $0.3470 | — | — |
| Electrical Parameters | |||
| Pbfree Code | Yes | Yes | — |
| YTEOL | 15 | 15 | 0 |
| Family | HC/UH | HC/UH | HC/UH |
| JESD-30 Code | R-PDIP-T16 | R-GDIP-T16 | R-PDSO-G16 |
| JESD-609 Code | e4 | e0 | e4 |
| Load Capacitance (CL) | 150 pF | 50 pF | 150 pF |
| Logic IC Type | MULTIPLEXER | MULTIPLEXER | MULTIPLEXER |
| Max I(ol) | 0.0078 A | 0.0052 A | 0.0078 A |
| Number of Bits | 8 | 2 | 8 |
| Number of Functions | 1 | 1 | 1 |
| Number of Inputs | 8 | 8 | 8 |
| Number of Outputs | 1 | 1 | 1 |
| Output Characteristics | 3-STATE | 3-STATE | 3-STATE |
| Output Polarity | COMPLEMENTARY | COMPLEMENTARY | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY | CERAMIC, GLASS-SEALED | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 | DIP16,.3 | SOP16,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | IN-LINE | SMALL OUTLINE |
| Packing Method | TUBE | TUBE | — |
| Power Supply Current-Max (ICC) | 0.08 mA | 0.16 mA | 0.08 mA |
| Prop. Delay@Nom-Sup | 75 ns | 21 ns | 75 ns |
| Propagation Delay (tpd) | 375 ns | 370 ns | 375 ns |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | 6 V | 6 V | 6 V |
| Supply Voltage-Min (Vsup) | 2 V | 2 V | 2 V |
| Supply Voltage-Nom (Vsup) | 5 V | 4.5 V | 5 V |
| Surface Mount | NO | NO | YES |
| Technology | CMOS | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | MILITARY | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Tin/Lead (Sn/Pb) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | GULL WING |
| Terminal Pitch | 2.54 mm | 2.54 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL |
| Peak Reflow Temperature (Cel) | — | — | 260 |
| Time@Peak Reflow Temperature-Max (s) | — | — | 30 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Multiplexer, HC/UH Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, CMOS, CDIP16
Multiplexer, HC/UH Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, CMOS, PDSO16
Why Look for Alternatives?
Finding alternatives for SN74HC251N 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 SN74HC251N 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.
Can't Find What You Need?
Our sourcing team can help find compatible alternatives for SN74HC251N. Get expert recommendations within 24 hours.
Request Alternatives for SN74HC251NFAQ
What is equivalent to SN74HC251N?
Known equivalents for SN74HC251N include CD54HC251F, SN74HC251D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74HC251N?
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 SN74HC251N 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.