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SA555 from PHILIPS

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SA555

Manufacturer: PHILIPS, ST, TI

Precision Timers

Partnumber Manufacturer Quantity Availability
SA555 PHILIPS, ST, TI 40075 In Stock

Description and Introduction

Precision Timers The SA555 is a precision timer IC manufactured by PHILIPS (now NXP Semiconductors). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Supply Voltage Range:** 4.5V to 16V  
- **Operating Temperature Range:** -55°C to +125°C  
- **Low Power Consumption:** Typically 3mA  
- **Output Current:** Up to 200mA (sink or source)  
- **Timing Accuracy:** ±1% at 25°C  
- **Trigger Voltage:** Typically 1.67V (1/3 of VCC)  
- **Threshold Voltage:** Typically 3.33V (2/3 of VCC)  
- **Reset Voltage:** ≤ 0.4V  

### **Description:**  
The SA555 is a highly stable timer IC designed for generating accurate time delays or oscillations. It is a low-power variant of the NE555, offering improved performance in terms of timing precision and power efficiency.  

### **Features:**  
- **Monostable or Astable Operation**  
- **Adjustable Duty Cycle**  
- **TTL-Compatible Output**  
- **High Output Drive Capability**  
- **Temperature Stability**  
- **Direct Replacement for NE555**  

This information is based solely on the manufacturer's datasheet. For detailed applications and circuit examples, refer to the official documentation.

Application Scenarios & Design Considerations

Precision Timers

Alternative Part Number

  • NE555P --: Industry-standard 555 timer with the same function and pinout, widely available and directly interchangeable in most SA555 circuits.
  • LM555CN --: Classic bipolar 555 timer offering equivalent timing performance and identical pin configuration, a common drop-in replacement.
  • TLC555CP --: CMOS 555 timer with lower power consumption and improved performance, suitable where supply current or timing accuracy matters.

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