74LS258 Quad 2-to-1 Multiplexer IC DIP-16

The 74LS258 is a quad 2-to-1 multiplexer with 3-state outputs, built on low-power Schottky (LS) TTL technology. Housed in a standard DIP-16 package, it delivers fast digital signal selection for a wide range of electronics components, modules, and embedded designs. Ideal for Arduino, Raspberry Pi interfacing (with appropriate level considerations), and other microcontroller-based systems requiring reliable voltage-level TTL logic routing.

Key Features ⚙️

• High-speed digital signal selection with typical 15 ns propagation delay.
• Low-power Schottky (LS) TTL design for efficient operation.
• 3-state outputs for easy bus interfacing and shared-line applications.
• Good noise immunity consistent with TTL logic levels.
• Standard 5 V operation (TTL): suitable for classic logic designs and 5 V microcontrollers.
• DIP-16 through-hole package for breadboards, prototyping, and easy integration.

Technical Specifications 📐

• Logic Function: Quad 2:1 multiplexer (inverting outputs), tri-state
• Supply Voltage (VCC): 4.75 V to 5.25 V
• Propagation Delay: 15 ns (typical)
• Operating Temperature: -40°C to +85°C
• Package: DIP-16 (Dual In-line Package)
• Pin Count: 16

Why Choose the 74LS258? 🌟

• Provides deterministic, low-latency signal routing for digital systems.
• 3-state control enables clean connection to shared data/address buses.
• Ideal for expanding microcontroller I/O and implementing address/data selection.

Typical Applications 🧰

• Data routing and signal selection in digital logic systems.
• Communication systems and bus multiplexing.
• Computing systems for address/data line selection.
• Industrial control systems requiring fast, reliable logic routing.
• General-purpose electronics components for education, prototyping, and lab use.

Integration Tips for Arduino and Raspberry Pi 💡

• Supply: Power the IC at 5 V (VCC 4.75–5.25 V).
• Logic Levels: 3.3 V logic (e.g., Raspberry Pi) typically reads as HIGH on TTL inputs; use protection or level shifting when reading the 74LS258’s 5 V outputs.
• Enable Control: Use the output enable to place outputs in high-impedance for shared-bus applications.

What You Get 📦

• 1 × 74LS258 Multiplexer IC DIP-16