NE555DR

The NE555DR is a highly stable timer IC produced by Texas Instruments. It is widely used in various timing, delay, pulse generation, and oscillator applications. Here are the main features and a detailed description of the NE555DR:

Description:

• Type: Precision Timer IC
• Package: SOIC-8 (Small Outline Integrated Circuit, 8 pins)
• Functionality: Monostable (one-shot) or astable (oscillator) operation modes

Key Features:

• Operating Voltage Range: 4.5V to 16V
• Timing From Microseconds to Hours: Provides precise time delays or oscillation, adjustable using external resistors and capacitors.
• High Output Current: Capable of sourcing or sinking up to 200 mA
• Astable Frequency: Adjustable from 1 Hz to 500 kHz, based on external components
• Low Timing Error: Less than 1% in monostable mode
• Temperature Stability: ±0.005%/°C
• Adjustable Duty Cycle: By varying the ratio of resistors in astable mode
• Output Compatibility: TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor)
• Low Power Consumption: Typically 3 mA at 5V
• Pin Configuration:
  • Pin 1: Ground
  • Pin 2: Trigger
  • Pin 3: Output
  • Pin 4: Reset (active low)
  • Pin 5: Control Voltage
  • Pin 6: Threshold
  • Pin 7: Discharge
  • Pin 8: VCC (supply voltage)

Applications:

• Timers: For generating precise time delays
• Pulse Generation: For generating accurate pulses of desired width
• Oscillators: For creating clock pulses in digital circuits
• Sequential Timing: For controlling events that need to occur in a specific sequence
• Frequency Divider: Dividing frequency in digital systems
• Pulse Width Modulation (PWM): For controlling power in devices such as LEDs and motors

Package Dimensions:

• SOIC-8: Small Outline Integrated Circuit with 8 pins, suitable for surface mount technology (SMT)

Reference Documents:

For more detailed technical specifications, electrical characteristics, application circuits, and guidelines, refer to the NE555DR datasheet provided by Texas Instruments. These documents are available on the Texas Instruments official website.