LM555CMX

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LM555CMX

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IC OSC SINGLE TIMER 8-SOP

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thuộc tính Giá trị
Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Obsolete
Type 555 Type, Timer/Oscillator (Single)
Voltage-Supply 4.5V ~ 16V
Current-Supply 7.5 mA
OperatingTemperature 0°C ~ 70°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
SupplierDevicePackage 8-SOIC

Tổng quan

Description

The LM555CMX is a reliable and versatile timer integrated circuit used for generating precise time delays or oscillations. It is a variant of the popular 555 timer IC, housed in an SOIC-8 package, which is suitable for surface-mount technology (SMT). The LM555CMX is designed to operate in three main modes: monostable, astable, and bistable. In the monostable mode, it functions as a one-shot timer, providing a single, precise output pulse when triggered. In astable mode, it can generate a continuous square wave output, making it useful for clock pulses or LED flashers. The bistable mode allows it to act as a basic flip-flop, toggling its output between high and low states.
Key features include low power consumption, high output current capability, and a wide supply voltage range, typically from 4.5V to 16V. The LM555CMX is often used in various applications such as pulse generation, timers, oscillators, and time delay circuits. Its ease of use, low cost, and adaptability make it a staple in both educational and professional electronic projects.

Equivalent

The LM555CMX is a version of the 555 timer IC. Equivalent products include:
1. NE555 by Texas Instruments and other manufacturers.
2. SE555 by Signetics.
3. TLC555 by Texas Instruments (CMOS version).
4. ICM7555 by Intersil (CMOS version).
5. MC1455 by ON Semiconductor.
6. CA555 by Intersil.
7. LM555CN by Texas Instruments (DIP package version).
Ensure to check specific parameters like temperature range or packaging to match your requirements.

Features

The LM555CMX is a highly stable timer integrated circuit, widely used for generating precise time delays and oscillations. Key features include:
1. Timing Functionality: Capable of operating in monostable and astable modes, allowing for single-shot or continuous operation.

2. Wide Supply Voltage Range: Operates from 4.5V to 16V, making it versatile for various applications.
3. Temperature Range: Suitable for a wide range of temperatures, ensuring reliable performance in different environments.
4. Adjustable Duty Cycle: Allows customization of the output pulse width and frequency.
5. Output Compatibility: Can drive TTL loads and offers sourcing or sinking up to 200mA of load current.
6. Low Power Consumption: Consumes minimal power, making it efficient for battery-operated devices.
7. Precision Timing: Offers high accuracy timing with minimal external components.
8. Short Circuit Protection: Built-in features protect against short circuits.
The LM555CMX is commonly used in applications such as pulse generation, frequency division, and timers due to its reliability and ease of use.

Pinout

The LM555CMX is a version of the 555 timer IC, commonly used for generating precise time delays or oscillation. It features an 8-pin configuration. Here’s a brief overview of each pin's function:
1. Ground (Pin 1): Connects to the circuit's ground.
2. Trigger (Pin 2): Initiates the timing interval when voltage falls below 1/3 of VCC.
3. Output (Pin 3): Outputs the timer's signal, either high or low.
4. Reset (Pin 4): Resets the timer; active low.
5. Control Voltage (Pin 5): Allows changing the threshold voltage, typically not used and connected to a capacitor for stability.
6. Threshold (Pin 6): Ends the timing interval when the voltage exceeds 2/3 of VCC.
7. Discharge (Pin 7): Discharges the timing capacitor through this pin when the output is low.
8. VCC (Pin 8): Connects to the positive supply voltage.
The LM555CMX is typically used in monostable (single pulse generation) or astable (continuous pulse generation) modes.

Manufacturer

The LM555CMX is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic equipment worldwide. TI is well-known for its broad product portfolio, which includes analog chips, digital signal processors, microcontrollers, and other semiconductor solutions. The company plays a significant role in the electronics industry, providing components for automotive, industrial, personal electronics, communications equipment, and enterprise systems. Its focus on innovation and technology advancement makes it one of the leading semiconductor companies globally.

Application

The LM555CMX is a timer IC widely used in various applications due to its versatility and reliability. Common application areas include:
1. Timing Functions: Used in generating precise time delays or oscillations.
2. Pulse Generation: Ideal for creating pulse width modulation (PWM) signals.
3. Astable Multivibrator: Often used in LED flashers, tone generation, and clock signals.
4. Monostable Multivibrator: Suitable for creating single shot pulses for debouncing switches.
5. Frequency Division: Used in frequency dividers and pulse position modulation.
6. Sequential Timing: Useful in sequencers and timing relays.
Its ability to operate in both astable and monostable modes makes it versatile for numerous electronics projects.

Package

The LM555CMX is a variant of the LM555 timer IC, and it typically comes in a SOIC-8 package. SOIC stands for Small Outline Integrated Circuit, and the "8" denotes that it has 8 pins. This package type is surface-mount, meaning it is designed to be mounted directly onto the surface of printed circuit boards (PCBs).

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