SN74S257NAlternatives & Equivalent Parts
About SN74S257N
SN74S257N 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 | SN74S257NSource | SN74HC266N | SN74S74N |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Dual-In-Line Packages | Dual-In-Line Packages | Dual-In-Line Packages |
| Pin Count | 16 | 14 | 14 |
| Temperature Range | ~ 70.0°C | -40.0°C ~ 85.0°C | ~ 70.0°C |
| Price | $2.1893 | $0.2537 | $0.3330 |
| Electrical Parameters | |||
| Date Of Intro | 1985-01-01 | — | — |
| YTEOL | 15 | 15 | 15 |
| Family | S | HC/UH | S |
| JESD-30 Code | R-PDIP-T16 | R-PDIP-T14 | R-PDIP-T14 |
| JESD-609 Code | e4 | e4 | e4 |
| Load Capacitance (CL) | 15 pF | 50 pF | 15 pF |
| Logic IC Type | MULTIPLEXER | XNOR GATE | D FLIP-FLOP |
| Max I(ol) | 0.0078 A | 0.0052 A | 0.02 A |
| Number of Functions | 4 | 4 | 2 |
| Number of Inputs | 2 | 2 | — |
| Number of Outputs | 1 | — | — |
| Output Characteristics | 3-STATE | OPEN-DRAIN | — |
| Output Polarity | TRUE | — | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 | DIP14,.3 | DIP14,.3 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | IN-LINE | IN-LINE |
| Packing Method | TUBE | TUBE | TUBE |
| Power Supply Current-Max (ICC) | 93 mA | 0.02 mA | 25 mA |
| Prop. Delay@Nom-Sup | 7.5 ns | 31 ns | 9 ns |
| Propagation Delay (tpd) | 7.5 ns | 155 ns | 9 ns |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Schmitt Trigger | YES | NO | — |
| Supply Voltage-Max (Vsup) | 5.25 V | 6 V | 5.25 V |
| Supply Voltage-Min (Vsup) | 4.75 V | 2 V | 4.75 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | 5 V |
| Surface Mount | NO | NO | NO |
| Technology | TTL | CMOS | TTL |
| Temperature Grade | COMMERCIAL | INDUSTRIAL | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE |
| Terminal Pitch | 2.54 mm | 2.54 mm | 2.54 mm |
| Terminal Position | DUAL | DUAL | DUAL |
| ## SN74S257N Alternates Showing results | Image | — | — |
| Pbfree Code | — | Yes | — |
| ## SN74HC266N Alternates Showing results | — | Image | — |
| Trigger Type | — | — | POSITIVE EDGE |
| fmax-Min | — | — | 50 MHz |
| ## SN74S74N Alternates Showing results | — | — | Image |
| Max Frequency@Nom-Sup | — | — | 75000000 Hz |
| Number of Bits | — | — | 1 |
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 SN74S257N 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 SN74S257N 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 SN74S257N?
Known equivalents for SN74S257N include SN74HC266N, SN74S74N. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74S257N?
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 SN74S257N 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.