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NE555DT

Name: NE555DT
Rating: 4.7 (12 reviews)

IC OSC SNGL TIMER 500KHZ 8-SOIC

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規格

Part Status	Obsolete
Base Product Number	NE555
Type	555 Type, Timer/Oscillator (Single)
Frequency	500kHz
Voltage - Supply	4.5V ~ 16V
Current - Supply	10 mA
Operating Temperature	0°C ~ 70°C
Package	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Mounting Type	Surface Mount
Packaging	Tape & Reel (TR)

概述

Description

The NE555DT is a versatile integrated circuit commonly used for timer, pulse generation, and oscillator applications. Introduced in 1972, it operates in three modes: astable (oscillator), monostable (one-shot), and bistable (flip-flop). The NE555 can generate precise time delays and frequencies, making it ideal for applications like timers, clock pulses, and frequency modulation.
The IC consists of two voltage comparators, a flip-flop, a discharge transistor, and a resistor divider. It typically operates with a supply voltage range of 4.5V to 15V and can source or sink up to 200mA of output current, making it suitable for driving small loads.
Common applications include LED flashers, tone generators, and pulse-width modulation. The NE555DT variant is packaged in a dual in-line package (DIP), which facilitates easy integration into various electronic projects. Its robustness, low cost, and simplicity have made the NE555 a staple in both hobbyist and professional electronics.

Features

The NE555DT is a versatile timer IC widely used in various applications. Key features include:
1. Operating Modes: It can function in astable, monostable, and bistable modes, allowing for pulse generation and timing applications.
2. Wide Supply Voltage Range: Operates typically from 4.5V to 15V, accommodating various circuit designs.
3. High Accuracy: Offers timing accuracy of ±1% with external resistors and capacitors.
4. Output Drive Capability: Can sink or source up to 200 mA, making it suitable for driving LEDs and small loads.
5. Temperature Range: Operates effectively within a temperature range of -55°C to +125°C.
6. Low Power Consumption: Consumes low power in stable states, enhancing efficiency.
7. Adjustable Duty Cycle: The duty cycle can be easily adjusted using external components.
8. Monolithic Design: Integrated circuit design ensures reliability and compact size.
These features make the NE555DT ideal for timers, oscillators, and pulse-width modulation applications in electronics.

Package

The NE555DT is typically packaged in a dual in-line package (DIP) format, specifically the 8-pin DIP configuration. This package type allows easy integration onto circuit boards and is suitable for various applications in timers, oscillators, and pulse generation.

Pinout

The NE555DT is an integrated circuit commonly used as a timer, pulse generator, or oscillator. It has an 8-pin Dual In-line Package (DIP). The pin configuration and functions are as follows:
1. GND: Ground reference for the circuit.
2. TRIG: Trigger input; a negative pulse on this pin sets the output high.
3. OUT: Output; provides the timer's output signal.
4. RESET: Resets the timer; active low.
5. CTRL: Control voltage; used to adjust the timing.
6. THRESH: Threshold input; when the voltage exceeds this level, the output is reset.
7. DISCH: Discharge pin; used to discharge the timing capacitor.
8. VCC: Supply voltage; powers the IC, typically 4.5V to 15V.
The NE555DT can operate in monostable, astable, or bistable modes, making it versatile for various applications in timing and signal generation.

Manufacturer

The NE555DT is manufactured by Texas Instruments (TI), a leading American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, including analog, digital signal processing, and microcontrollers. Founded in 1930, TI has a long history in the electronics industry and is a key player in producing components for a wide range of applications, including automotive, industrial, communications, and consumer electronics. The NE555 timer IC, specifically, is widely used in timer, delay, pulse generation, and oscillator applications due to its versatility and reliability.

Application

The NE555DT timer IC is widely used in various applications, including:
1. Astable and Monostable Circuits: For generating square waves or timed pulses.
2. Timers: In delay circuits for alarms or home appliances.
3. Pulse Width Modulation (PWM): For motor speed control and LED dimming.
4. Frequency Generators: In clock generation applications.
5. Flashing LED Circuits: For visual indicators or decorations.
6. Tone Generators: In sound-producing devices.
Its versatility and ease of use make it popular in both hobbyist and professional projects.

Equivalent

Equivalent products to the NE555DT chip include the LM555, TLC555, LMC555, and SE555. These chips offer similar functionalities for timing, pulse generation, and oscillator applications. Ensure to check specifications for voltage, current ratings, and package types for compatibility in your designs.