NE556DB

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NE556DB

+BOM

IC OSC TIMER DUAL 100KHZ 14SSOP

  • ManufacturerTexas Instruments

  • Mfr. Part #NE556DB

  • In Stock4419

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Specifications

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Supplier Rochester Electronics, LLC
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ProductStatus Active

Overview

Description

The NE556DB is a dual-timer IC based on the popular 555 timer architecture, offering two independent timing circuits within a single package. It is commonly used in applications requiring precise timing control such as oscillators, pulse generators, and timers. Each timer within the NE556DB can operate in either monostable or astable mode, providing flexibility for various applications.
The IC operates over a wide voltage range, typically from 4.5V to 15V, and can source or sink up to 200mA of current, making it suitable for driving LEDs, relays, or other small loads. It features low power consumption and high stability against temperature variations and supply voltage changes.
The NE556DB comes in a small-outline SOIC-14 package, making it suitable for compact or space-constrained designs. Its robust performance and versatility make it ideal for use in consumer electronics, automotive, and industrial applications. Additionally, the NE556DB is often favored for educational projects and prototyping due to its ease of use and readily available support resources.

Equivalent

The NE556DB chip is a dual timer IC. Equivalent products include the LM556, TLC556, and SE556. These chips provide similar functionality with dual timers suitable for precision timing applications. Always check the specific datasheets to ensure compatibility in terms of electrical characteristics and pin configuration for your application.

Features

The NE556DB is a dual version of the 555 timer IC. It features two independent timers capable of monostable or astable operation. Key features include:
1. Dual Timer Configuration: Contains two 555 timers in a single package.
2. High Precision: Provides accurate timing with predictable performance.
3. Wide Supply Voltage Range: Operates between 4.5V and 16V.
4. Adjustable Timing: Timing is set using external resistors and capacitors.
5. Low Power Consumption: Designed for efficient power use.
6. High Output Current: Can source or sink up to 200 mA.
7. Temperature Stability: Performs reliably across a wide temperature range.
8. Versatile Applications: Suitable for pulse generation, time delay, and oscillator functions.
9. Package Options: Available in various packages for different design needs.
The NE556DB's versatility makes it suitable for many applications, including LED and lamp flashers, alarms, tone generation, and pulse-width modulation.

Pinout

The NE556DB is a dual version of the NE555 timer IC, housed in a 14-pin package. It contains two independent 555 timers in a single package. Below is a concise overview of its pin count and functions:
1. Pin 1 (GND): Ground reference voltage, low-level (0V).
2. Pin 2 (TRIG A): Trigger input for Timer A; a falling edge triggers the timer.
3. Pin 3 (OUT A): Output for Timer A; delivers the timer's pulse.
4. Pin 4 (RESET A): Resets Timer A when a low voltage is applied.
5. Pin 5 (CTRL A): Control voltage for Timer A; adjusts threshold and trigger levels.
6. Pin 6 (THRES A): Threshold input for Timer A; ends the timing interval.
7. Pin 7 (DISCH A): Discharge output for Timer A; discharges the timing capacitor.
8. Pin 8 (VCC): Supply voltage for the integrated circuit.
9. Pin 9 (DISCH B): Discharge output for Timer B.
10. Pin 10 (THRES B): Threshold input for Timer B.
11. Pin 11 (CTRL B): Control voltage for Timer B.
12. Pin 12 (RESET B): Resets Timer B.
13. Pin 13 (OUT B): Output for Timer B.
14. Pin 14 (TRIG B): Trigger input for Timer B.
The NE556DB combines two 555 timers, allowing for dual timing functions within one chip.

Manufacturer

The NE556DB is manufactured by Texas Instruments. Texas Instruments (TI) is a global technology company known for designing and manufacturing semiconductors and various integrated circuits, which are used in a wide array of electronic applications. The company was founded in 1930 and is headquartered in Dallas, Texas. TI is one of the largest semiconductor companies in the world and is particularly recognized for its analog chips and embedded processors, which are critical components in electronics for industries ranging from consumer electronics to automotive and industrial applications.

Application

The NE556DB is a dual version of the popular 555 timer IC, providing two independent timing circuits in a single package. It is commonly used in applications such as pulse generation, timers, oscillators, and flip-flop circuits. Typical applications include creating time delays, square wave generation, frequency division, sequential timing, and pulse width modulation (PWM). It is often employed in various electronics projects, including LED flashers, tone generators, and alarm systems. Its versatility and ease of use make it suitable for both hobbyist projects and industrial applications.

Package

The NE556DB is a dual timer IC packaged in a small outline integrated circuit (SOIC) format, specifically an SOIC-14. This package type is characterized by its 14 pins and gull-wing leads, making it suitable for surface-mount technology (SMT) applications.

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