CMOS Timer The LMC555 is a CMOS version of the 555 timer, manufactured by National Semiconductor (NS). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Supply Voltage Range:** 1.5V to 15V
- **Low Power Consumption:** Typically 0.5mW at 5V
- **Operating Temperature Range:** -40°C to +85°C
- **Timing Accuracy:** ±2% over temperature
- **Output Current Sourcing/Sinking:** 100mA (typical)
- **Input Trigger Voltage:** 1.67V (at 5V supply)
- **Reset Voltage:** 0.4V (max)
- **Threshold Voltage:** 3.33V (at 5V supply)
- **Package Options:** SOIC, PDIP, TSSOP
### **Descriptions:**
- The LMC555 is a low-power, precision timing circuit that functions similarly to the standard 555 timer but with improved performance due to CMOS technology.
- It is designed for applications requiring stable time delays or oscillation with minimal power consumption.
- Compatible with standard 555 timers but operates at lower voltages and with reduced power dissipation.
### **Features:**
- **Low Power Consumption:** Ideal for battery-operated devices.
- **Wide Operating Voltage Range:** Works from 1.5V to 15V.
- **High Output Drive Capability:** Can source/sink up to 100mA.
- **Improved Timing Stability:** Lower temperature drift compared to bipolar 555 timers.
- **Pin-Compatible with Standard 555:** Drop-in replacement in most applications.
- **ESD Protection:** Improved robustness against electrostatic discharge.
This information is based on the manufacturer's datasheet and technical documentation.
