SN74F257NIn StockTexas Instruments
SN74F257N is a quadruple 2-to-1 multiplexer with 3-state outputs in 16-pin DIP package. Features fast F/FAST logic family with 50 pF load capacitance and Ni/Pd/Au terminal finish. From $0.08 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74F257N Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0809(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quadruple 2-to-1 data selector/multiplexer with 3-state outputs for bus-driving applications
- F/FAST logic family for high-speed operation with 50 pF load capacitance
- 16-pin through-hole DIP package with 2.54 mm pitch for easy PCB integration
- JEDEC-compliant Ni/Pd/Au terminal finish for enhanced reliability and solderability
Applications
The SN74F257N is widely used in data routing and bus multiplexing applications in digital systems, including microprocessor address/data bus selection and memory banking circuits. Its 3-state outputs make it ideal for shared-bus architectures in communication equipment and industrial control systems. The device is also commonly employed in test and measurement instruments where fast, reliable signal switching between multiple data sources is required.
Specifications
| YTEOL | 15 |
| Family | F/FAST |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MULTIPLEXER |
| Max I(ol) | 0.02A |
| Number of Bits | 4 |
| 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 | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 22mA |
| Prop. Delay@Nom-Sup | 7ns |
| Propagation Delay (tpd) | 9.5ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74F257N:
Multiplexer, F/FAST Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, TTL, PDIP16
Multiplexer, F/FAST Series, 4-Func, 2 Line Input, 1 Line Output, Inverted Output, TTL, PDSO16
Frequently Asked Questions
What is the SN74F257N and what does it do?
The SN74F257N is a quadruple 2-line to 1-line data selector/multiplexer with 3-state outputs from Texas Instruments. It contains four independent 2-to-1 multiplexers that select one of two data inputs based on a common select signal, making it ideal for data routing in digital circuits.
What are the key electrical specifications of the SN74F257N?
The SN74F257N belongs to the F/FAST logic family and features a 50 pF load capacitance (CL). It operates in a 16-pin DIP package with 2.54 mm terminal pitch, JESD-30 code R-PDIP-T16, and Ni/Pd/Au terminal finish for reliable through-hole mounting.
What are typical applications for the SN74F257N?
The SN74F257N is commonly used in microprocessor bus multiplexing, memory bank selection, and shared-bus architectures. Its 3-state outputs allow multiple devices to share a common data bus without signal conflicts, making it suitable for industrial control systems, communication equipment, and digital logic designs.
What package does the SN74F257N come in and are there SMD alternatives?
The SN74F257N comes in a 16-pin through-hole Dual-In-Line Package (DIP) with 2.54 mm pitch. For surface-mount applications, Texas Instruments offers equivalent devices in SOIC and SSOP packages such as the SN74F257D (SOIC-16) and SN74F257DW, which provide the same functionality in a smaller SMD footprint.
Related Guides
Is Buying Electronic Components from Chinese Suppliers Safe? A 2025–2026 Buyer's Guide
A 2025–2026 buyer's guide to sourcing electronic components from Chinese suppliers: real risks, authorized vs. broker channels, and a 5-point safety framework.
Apr 22, 2026
BOM Optimization: How to Reduce Electronic Component Costs Without Sacrificing Quality
Practical strategies for reducing BOM costs by 15-30% through smart component selection, supplier diversification, and procurement optimization.
Apr 9, 2026
Top 10 Microcontrollers in 2025: A Comprehensive Comparison Guide
Detailed comparison of the most popular MCUs in 2025 — STM32, ESP32, RP2040, nRF52, and more. Specs, pricing, ecosystem, and use-case recommendations.
Apr 9, 2026
How to Read an IC Datasheet: A Practical Guide for Engineers
Master the art of reading IC datasheets. Learn what every section means, which specs matter most, and how to extract the information you need for your design.
Apr 9, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9400 | $0.94 |
| 10+ | $0.6750 | $6.75 |
| 24+ | $0.6666 | $16.00 |
| 25+ | $0.6080 | $15.20 |
| 91+ | $0.5555 | $50.55 |
| 1000+ | $0.0809 | $80.90 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”