Texas Instruments

SN74150N

SN74150N Description

The SN74150N from Texas Instruments is a 16:1 multiplexer belonging to the 7400 series of logic ICs. Housed in a 24-pin DIP package, this obsolete but robust component operates within a single supply voltage range of 4.75V to 5.25V, making it compatible with standard TTL logic levels. Designed for through-hole mounting, it features a 1 x 16:1 circuit configuration with an output current capability of 800µA (high) and 16mA (low), ensuring reliable signal routing in digital systems. Its operating temperature range of 0°C to 70°C suits industrial and commercial applications.

SN74150N Features

• High-Speed TTL Logic: Ensures fast signal switching, critical for timing-sensitive applications.
• Wide Output Current Range: Supports 16mA sink current, enabling direct drive of LEDs or relays.
• Single-Supply Operation: Simplifies power management with a 5V supply requirement.
• Low Power Consumption: Ideal for battery-powered or energy-efficient designs.
• RoHS3 Compliant & REACH Unaffected: Meets modern environmental standards despite its obsolete status.
• Moisture Sensitivity Level 1 (Unlimited): Suitable for extended storage without stringent humidity controls.

SN74150N Applications

• Data Routing Systems: Efficiently selects one of 16 input lines for serial data transmission.
• Digital Signal Processing (DSP): Acts as a front-end selector for analog-to-digital converters (ADCs).
• Test Equipment: Used in automated test systems to multiplex sensor or control signals.
• Retro Computing & Legacy Systems: Maintains compatibility with vintage TTL-based computers.
• Industrial Control: Interfaces with multiple sensors or actuators via a single control line.

Conclusion of SN74150N

The SN74150N remains a reliable choice for legacy or niche applications requiring a high-channel-count multiplexer. Its TTL compatibility, robust output drive, and ease of integration make it valuable for prototyping, educational labs, and repairs of older systems. While newer multiplexers offer surface-mount options or lower voltages, the SN74150N's simplicity and proven performance ensure continued relevance in specific use cases. Engineers seeking a no-frills, high-performance multiplexer for 5V systems will find this IC a pragmatic solution.