HA17555 Precision timer

The HA17555 is a highly stable timer integrated circuit designed by Renesas. It is widely used for precision timing applications, offering monostable and astable operation modes. This versatile IC is ideal for generating accurate time delays, pulse generation, and oscillator applications in a variety of electronic devices.

Key Features:

• Highly stable timing with precision of 1%
• Monostable (one-shot) and astable (oscillator) operation modes
• Adjustable duty cycle in astable mode
• Capable of producing accurate time delays from microseconds to hours
• High output current capability
• Operates from a wide supply voltage range
• TTL compatible output

Technical Specifications:

• Package Type: DIP-8 (Dual In-line Package)
• Operating Voltage: 4.5V to 16V
• Timing Interval: 0.1 µs to hours (adjustable)
• Output Current: 200 mA
• Temperature Stability: 50 ppm/°C
• Operating Temperature Range: -20°C to +70°C

Applications:

• Timing delays
• Pulse generation
• Sequential timing
• LED flashers
• Frequency dividers
• Signal conditioning

Usage:

1. Configure the HA17555 in monostable or astable mode depending on the application.
2. Connect external resistors and capacitors to set the desired timing interval.
3. Integrate the IC into your circuit design for precision timing tasks.
4. Ensure proper power supply and signal connections for reliable operation.

Caution:

• Avoid exposure to moisture and mechanical stress to prevent damage.
• Verify the supply voltage and timing component values before operation.
• Follow the manufacturer’s guidelines for circuit design and assembly.

Datasheet:
For detailed technical specifications, refer to the HA17555 Datasheet.