Overview
The NE556DB, produced by Texas Instruments, is a versatile and highly reliable dual timer IC designed to provide precise timing and oscillation capabilities for various applications. This integrated circuit incorporates two independent 555 timer circuits in a single package, offering significant advantages in terms of space savings and simplified design processes. The NE556DB is suitable for both astable and monostable operation modes, making it adaptable for a wide range of uses, including timer circuits, pulse generation, and waveform generation. It operates within a wide voltage range and temperature limit, ensuring reliability in challenging environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 4.5V to 15V | V |
| Output Drive Capability | Up to 200mA | mA |
| Timing Accuracy | ± 5% typical | % |
| Temperature Range | -55°C to +125°C | °C |
| Operating Current | 3mA | mA |
| Frequency Range | Up to several MHz | Hz |
| Package Type | 14-pin DIP or SSOP | - |
Key Features
- Dual 555 timer configuration for increased functionality
- Operating voltage range: 4.5V to 15V
- Output drive capability: Up to 200mA
- Timing accuracy: ± 5% typical
- Temperature range: -55°C to +125°C
- Low power consumption: 3mA operating current
- Wide frequency range: Up to several MHz
- Pin-compatible with industry-standard 555 timers
- Integrated Reset and Trigger functions for user flexibility
- Square-wave mode, sawtooth mode, and frequency-divided mode capabilities
- Internal voltage regulator
Applications
- Timing circuits and delay generation
- Pulse width modulation (PWM) generation
- Frequency division and clock generation
- Light flashers and chasers
- Waveform generation for audio applications
- Monostable and astable multivibrators
- Tone generation in musical instruments
- Linear ramp generators
- Timers for automation and control systems
- Capacitive touch sensing applications
- Clock circuits
- Pulse generators
- Frequency synthesizers
- Timers for industrial control systems
- Oscillators for audio applications
Q & A
- What is the maximum output current of the NE556DB?
The NE556DB can source or sink up to 200mA of output current.
- Can the NE556DB be used in PWM applications?
- How do I determine the timing period in monostable mode?
The timing period for monostable operation is calculated using the formula T = 1.1 * R * C, where R is the resistance in ohms and C is the capacitance in farads.
- What temperature range does the NE556DB support?
The NE556DB operates effectively within a temperature range of -55°C to +125°C.
- Is the NE556DB compatible with existing 555 timer circuits?
- What are the operating voltage and current requirements of the NE556DB?
The NE556DB operates within a voltage range of 4.5V to 15V and has an operating current of 3mA.
- Can the NE556DB be used in astable mode?
- What is the frequency range of the NE556DB?
The NE556DB can operate at frequencies up to several MHz.
- Does the NE556DB have an internal voltage regulator?
- What package types are available for the NE556DB?
The NE556DB is available in 14-pin DIP and SSOP packages.
