SN74LS257BNAlternatives & Equivalent Parts
About SN74LS257BN
SN74LS257BN is a logic-ics component manufactured by Texas Instruments. It comes in a PDIP-16 package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | SN74LS257BNSource | SN74HC257D |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Package Type | PDIP-16 | Small Outline Packages |
| Pin Count | 16 | 16 |
| Temperature Range | 0.0°C ~ 70.0°C | -40.0°C ~ 85.0°C |
| Price | $0.5843 | $0.3042 |
| Electrical Parameters | ||
| supply_voltage | 5 V | — |
| logic_family | TTL/LS | — |
| output_type | 3-State | — |
| number_of_channels | 4 | — |
| propagation_delay | 18 ns | — |
| operating_temperature | 0 to 70 C | — |
| YTEOL | — | 0 |
| Family | — | HC/UH |
| JESD-30 Code | — | R-PDSO-G16 |
| JESD-609 Code | — | e4 |
| Load Capacitance (CL) | — | 50 pF |
| Logic IC Type | — | MULTIPLEXER |
| Max I(ol) | — | 0.0078 A |
| Number of Bits | — | 2 |
| Number of Functions | — | 4 |
| Number of Inputs | — | 2 |
| Number of Outputs | — | 1 |
| Output Characteristics | — | 3-STATE |
| Output Polarity | — | TRUE |
| Package Body Material | — | PLASTIC/EPOXY |
| Package Equivalence Code | — | SOP16,.25 |
| Package Shape | — | RECTANGULAR |
| Package Style | — | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | — | 260 |
| Power Supply Current-Max (ICC) | — | 0.08 mA |
| Prop. Delay@Nom-Sup | — | 25 ns |
| Propagation Delay (tpd) | — | 125 ns |
| Qualification Status | — | Not Qualified |
| Supply Voltage-Max (Vsup) | — | 6 V |
| Supply Voltage-Min (Vsup) | — | 2 V |
| Supply Voltage-Nom (Vsup) | — | 5 V |
| Surface Mount | — | YES |
| Technology | — | CMOS |
| Temperature Grade | — | INDUSTRIAL |
| Terminal Finish | — | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | — | GULL WING |
| Terminal Pitch | — | 1.27 mm |
| Terminal Position | — | DUAL |
| Time@Peak Reflow Temperature-Max (s) | — | 30 |
| ## SN74HC257D Alternates Showing results | — | Image |
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 SN74LS257BN 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 SN74LS257BN 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 SN74LS257BNFAQ
What is equivalent to SN74LS257BN?
Known equivalents for SN74LS257BN include SN74HC257D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74LS257BN?
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 SN74LS257BN 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.