Overview
The SN74LS123NS is a dual retriggerable monostable multivibrator manufactured by Texas Instruments. This integrated circuit (IC) belongs to the 74LS series of logic devices and is widely used in timing and pulse generation applications. Designed for precision and reliability, the SN74LS123NS is ideal for use in industrial, automotive, and consumer electronics. Its ability to be retriggered during operation makes it a versatile choice for complex timing circuits.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | Monostable | - | Dual retriggerable |
| Independent Circuits | 2 | - | - |
| Propagation Delay | 28 | ns | - |
| Output Current (High/Low) | 400µA / 8mA | - | - |
| Supply Voltage | 4.75 - 5.25 | V | - |
| Operating Temperature | 0 - 70 | °C | - |
| Mounting Type | Surface Mount | - | - |
| Package/Case | 16-SOIC | - | 5.30mm wide |
| Schmitt Trigger Input | No | - | - |
Key Features
- Dual Retriggerable Design: Allows for flexible timing control during operation.
- Wide Supply Voltage Range: Operates reliably between 4.75V and 5.25V.
- Low Power Consumption: Ideal for battery-powered applications.
- Compact Package: 16-SOIC package saves board space.
- High Precision: Ensures accurate timing with a propagation delay of 28ns.
Applications
The SN74LS123NS is commonly used in applications requiring precise timing and pulse generation. Typical use cases include:
- Industrial Automation: Timing control in machinery and equipment.
- Automotive Electronics: Signal conditioning and pulse shaping.
- Consumer Electronics: Timer circuits in appliances and gadgets.
- Communication Systems: Pulse generation in signal processing.
Q & A
1. What is the operating voltage range of the SN74LS123NS?
The operating voltage range is 4.75V to 5.25V.
2. Can the SN74LS123NS be retriggered during operation?
Yes, it is a dual retriggerable monostable multivibrator.
3. What is the propagation delay of the SN74LS123NS?
The propagation delay is 28ns.
4. What package does the SN74LS123NS come in?
It comes in a 16-SOIC package.
5. Is the SN74LS123NS suitable for automotive applications?
Yes, it is widely used in automotive electronics.
6. Does the SN74LS123NS have Schmitt trigger inputs?
No, it does not have Schmitt trigger inputs.
7. What is the maximum operating temperature of the SN74LS123NS?
The maximum operating temperature is 70°C.
8. How many independent circuits does the SN74LS123NS have?
It has two independent circuits.
9. What is the output current capability of the SN74LS123NS?
The output current is 400µA (high) and 8mA (low).
10. Is the SN74LS123NS RoHS compliant?
Yes, it is RoHS compliant.
