NE556DT

Product Overview

Category: Integrated Circuit (IC)

Use: The NE556DT is a dual precision timer IC that combines two 555 timers in a single package. It is widely used in various electronic circuits for timing and oscillator applications.

Characteristics: - Dual timer functionality - Precision timing capabilities - Wide operating voltage range - Low power consumption - Compact package size

Package: NE556DT is available in a standard 14-pin DIP (Dual In-line Package) format, which allows for easy integration into circuit boards.

Essence: The NE556DT is an essential component in electronic circuits that require precise timing control or oscillation generation.

Packaging/Quantity: The NE556DT is typically sold in reels or tubes containing multiple units, with each reel or tube containing a specific quantity of ICs.

Specifications

• Supply Voltage Range: 4.5V to 16V
• Operating Temperature Range: -40°C to +85°C
• Output Current: 200mA
• Trigger Voltage: 1/3 Vcc
• Reset Voltage: 0.7V
• Timing Error: ±2%
• Maximum Power Dissipation: 600mW

Pin Configuration

The NE556DT has a total of 14 pins, which are assigned specific functions as follows:

1. GND: Ground reference for the IC.
2. TRIG1: Trigger input for Timer 1.
3. OUT1: Output of Timer 1.
4. RESET1: Reset input for Timer 1.
5. CTRL1: Control voltage input for Timer 1.
6. THRES1: Threshold input for Timer 1.
7. DISCH1: Discharge pin for Timer 1.
8. VCC: Positive supply voltage.
9. DISCH2: Discharge pin for Timer 2.
10. THRES2: Threshold input for Timer 2.
11. CTRL2: Control voltage input for Timer 2.
12. RESET2: Reset input for Timer 2.
13. OUT2: Output of Timer 2.
14. TRIG2: Trigger input for Timer 2.

Functional Features

• Dual Timer Functionality: The NE556DT integrates two independent 555 timers in a single package, providing flexibility in circuit design.
• Precision Timing: The IC offers accurate timing capabilities with low timing errors, making it suitable for applications requiring precise time intervals.
• Wide Operating Voltage Range: The NE556DT can operate within a wide voltage range, allowing compatibility with various power supply configurations.
• Low Power Consumption: The IC consumes minimal power, making it energy-efficient and suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Compact size and easy integration into circuit boards. - Dual timer functionality provides versatility in circuit design. - Accurate timing capabilities for precise control. - Wide operating voltage range allows for compatibility with different power supplies. - Low power consumption for energy efficiency.

Disadvantages: - Limited number of timing functions compared to more advanced timer ICs. - May require additional external components for certain applications.

Working Principles

The NE556DT operates based on the principles of the 555 timer IC. It consists of two separate timers, each capable of generating precise time delays or oscillations. The timing is controlled by external resistors and capacitors connected to the appropriate pins of the IC. The internal circuitry of the NE556DT processes these external components' values to determine the timing intervals.

Detailed Application Field Plans

The NE556DT finds applications in various electronic circuits, including but not limited to: 1. Pulse generation for digital systems. 2. Timing control in electronic devices. 3. Oscillator circuits for frequency generation. 4. Precision timing in industrial automation. 5. LED flashers and light sequencers. 6. Motor control circuits. 7. Audio signal generation.

Detailed and Complete Alternative Models

1. NE555P: Single timer version of the NE556DT.
2. LM555CN: Another popular single timer IC with similar functionality to the NE556DT.
3. ICM7555IPD: CMOS-based timer IC with low power consumption and extended temperature range.

These alternative models offer similar timing capabilities and can be used as substitutes for the NE556DT depending on specific circuit requirements.

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