LM555CM

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LM555CM

LM555 HIGHLY STABLE 555 TIMER

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規格

Package 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

概述

Description

The LM555CM is an integrated circuit (IC) timer widely used in various applications, including timers, pulse generation, and oscillators. It is part of the LM555 series, known for its versatility and reliability. The device can operate in three modes: astable (oscillating), monostable (one-shot pulse), and bistable (flip-flop).
The LM555CM features a standard 8-pin dual in-line package (DIP) format and operates on a supply voltage range of 4.5V to 15V, with a maximum output current of 200 mA. Its internal architecture includes comparators, a flip-flop, a discharge transistor, and a voltage divider, allowing for precise timing and waveform generation.
Common applications of the LM555CM include LED flasher circuits, tone generators, frequency dividers, and pulse-width modulation (PWM) controls. Its ease of use, low cost, and robustness make it a favorite among hobbyists and engineers alike for both educational projects and professional designs.

Features

The LM555CM is a versatile timer IC widely used in various applications. Here are its key features:
1. Operating Modes: It can be configured in monostable (one-shot) or astable (oscillator) modes, allowing for timing and pulse generation.
2. Wide Supply Voltage Range: Operates from 4.5V to 15V, making it suitable for different power environments.
3. Timing Interval: Capable of generating precise timing intervals from microseconds to hours, depending on external resistors and capacitors.
4. Output Capability: Can source or sink up to 200mA, enabling it to drive loads like LEDs or small motors directly.
5. Temperature Range: Operates within a temperature range of -55°C to 125°C, suitable for industrial applications.
6. Low Power Consumption: Consumes low power, making it efficient for battery-operated devices.
7. Ease of Use: Simple to implement with minimal external components required.
8. Stability and Reliability: High stability and reliability make it suitable for timer, pulse generation, and oscillator applications.
The LM555CM is widely used in timers, oscillators, flip-flops, and pulse-width modulation (PWM) applications.

Package

The LM555CM is typically available in a dual in-line package (DIP) format, specifically a 14-pin DIP. This packaging allows for easy integration into electronic circuits and breadboards.

Pinout

The LM555CM is a popular timer IC with a 8-pin DIP (Dual In-line Package) configuration. Here are the pin functions:
1. Ground (Pin 1): Connect to the negative supply voltage.
2. Trigger (Pin 2): A negative pulse on this pin sets the output high.
3. Output (Pin 3): Provides the timer output (high or low) based on the input triggers.
4. Reset (Pin 4): Active low input to reset the timer; connect to Vcc for normal operation.
5. Control Voltage (Pin 5): Used to modify the timing interval, typically left unconnected or connected to ground via a capacitor for stability.
6. Threshold (Pin 6): Compares the voltage with the internal reference; when it exceeds 2/3 of Vcc, it resets the flip-flop.
7. Discharge (Pin 7): Connected to the collector of a transistor that discharges the timing capacitor when the output goes low.
8. Vcc (Pin 8): Connect to the positive supply voltage (typically between 4.5V and 15V).
The LM555CM can be used in various applications, including timers, pulse generation, and oscillators.

Manufacturer

The LM555CM is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, which are widely used in electronics. Founded in 1930, the company has a strong focus on innovation and provides a broad range of products, including analog and embedded processing chips. TI serves various industries, such as automotive, industrial, telecommunications, and consumer electronics, and is recognized for its contributions to the development of the modern electronics industry, particularly through its work in analog technology and digital signal processing.

Application

The LM555CM is a versatile timer IC used in various applications such as pulse generation, timing delays, frequency generation, oscillators, and waveform generation. It is commonly employed in timers, tone generators, LED flashers, pulse width modulation, and as a clock in digital circuits. Additionally, it can be found in hobbyist projects, automotive electronics, and industrial control systems for creating accurate timing and control functions.

Equivalent

Equivalent products to the LM555CM chip include the NE555, SE555, and TLC555. These chips serve similar timing and oscillator functions in various applications. Ensure to check the specifications and pin configurations, as they might vary slightly between manufacturers.

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