RETRIGGERABLE MONOSTABLE MULTIVIBRATORS The SN74LS123D is a dual retriggerable monostable multivibrator manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Part Number:** SN74LS123D
- **Technology:** LS (Low-Power Schottky)
- **Package:** SOIC (Small Outline Integrated Circuit)
- **Operating Voltage:** 4.75V to 5.25V (standard 5V logic)
- **Operating Temperature Range:** 0°C to 70°C (commercial grade)
- **Propagation Delay:** Typically 45 ns
- **Output Current (High/Low):** ±8 mA / 16 mA
- **Input Capacitance:** 3 pF (typical)
- **Power Dissipation:** 45 mW (typical per gate)
### **Descriptions:**
- The SN74LS123D is a dual retriggerable monostable multivibrator, meaning it has two independent one-shot circuits in a single package.
- Each multivibrator can be triggered by either a positive or negative edge, providing flexibility in pulse generation.
- The output pulse width is determined by external timing components (resistor and capacitor).
- It features a clear input that can terminate the output pulse prematurely.
### **Features:**
- **Dual Monostable Multivibrator:** Two independent one-shot circuits in one IC.
- **Retriggerable:** The output pulse can be extended by reapplying a trigger before the initial pulse ends.
- **Wide Pulse Width Control:** Adjustable via external RC components.
- **Direct Clear Input:** Allows immediate termination of the output pulse.
- **Schottky-clamped Inputs:** Ensures high-speed operation and reduced power consumption.
- **TTL-Compatible Inputs and Outputs:** Works seamlessly with other TTL logic devices.
This information is strictly factual and based on the manufacturer's datasheet.
