Overview
The SN74HC158D is a digital multiplexer integrated circuit (IC) produced by Texas Instruments. It belongs to the 74HC series and is designed as a quad 2-input multiplexer with inverted outputs. This IC is widely used in digital logic applications for data selection and routing. It is particularly suitable for applications requiring high-speed operation, low power consumption, and compatibility with TTL logic levels. The SN74HC158D is available in a SOIC-16 package, making it ideal for surface-mount technology (SMT) applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Function | Quad 2-input Multiplexer | - | Inverted outputs |
| Supply Voltage | 2 to 6 | V | Wide operating range |
| Operating Temperature | -40 to +125 | °C | Industrial grade |
| Propagation Delay | 11 | ns | Typical at 5V |
| Output Current | ±6 | mA | Drive capability |
| Input Current | 1 | μA | Max |
| Package | SOIC-16 | - | Surface mount |
| Pin Count | 16 | - | Includes strobe input |
| Logic Family | HC | - | High-speed CMOS |
Key Features
- Quad 2-input multiplexer with inverted outputs for flexible data selection.
- Wide supply voltage range (2V to 6V) ensures compatibility with various logic levels.
- Low power consumption (max 80μA) makes it suitable for battery-powered applications.
- High-speed operation with a typical propagation delay of 11 ns at 5V.
- Robust design with high noise immunity and ability to drive up to 15 LSTTL loads.
Applications
The SN74HC158D is widely used in various digital logic applications, including:
- Data routing and selection in microcontrollers and digital signal processors.
- Communication systems for signal multiplexing and demultiplexing.
- Industrial automation for control logic and signal processing.
- Consumer electronics such as gaming consoles and home automation systems.
- Automotive electronics for vehicle control systems and infotainment.
Q & A
1. What is the function of the SN74HC158D?
The SN74HC158D is a quad 2-input multiplexer with inverted outputs, used for selecting and routing data in digital circuits.
2. What is the operating voltage range of the SN74HC158D?
The operating voltage range is 2V to 6V, making it compatible with a wide range of logic levels.
3. What is the typical propagation delay of the SN74HC158D?
The typical propagation delay is 11 ns at a supply voltage of 5V.
4. What package does the SN74HC158D come in?
The SN74HC158D is available in a SOIC-16 package, suitable for surface-mount technology (SMT).
5. What is the maximum operating temperature of the SN74HC158D?
The maximum operating temperature is +125°C, making it suitable for industrial applications.
6. Can the SN74HC158D drive TTL loads?
Yes, the SN74HC158D can drive up to 15 LSTTL loads.
7. What is the output current capability of the SN74HC158D?
The output current capability is ±6 mA, ensuring robust signal transmission.
8. Is the SN74HC158D suitable for battery-powered devices?
Yes, its low power consumption (max 80μA) makes it ideal for battery-powered applications.
9. What is the input current of the SN74HC158D?
The maximum input current is 1 μA, ensuring minimal load on the driving circuit.
10. What are the key applications of the SN74HC158D?
Key applications include data routing, communication systems, industrial automation, consumer electronics, and automotive electronics.
