onsemi

LM556CM

LM556CM Description

The LM556CM is a dual 555-type timer/oscillator IC designed for a wide range of timing and oscillation applications. Manufactured by onsemi, this integrated circuit (IC) is housed in a surface-mount package, specifically a 14-pin small outline package (SOP). The LM556CM operates within a supply voltage range of 4.5V to 16V and can handle a supply current up to 30 mA. It is rated for operation in an ambient temperature range of 0°C to 70°C, making it suitable for various industrial and commercial environments. The LM556CM is classified under the ECCN (Export Control Classification Number) EAR99 and is REACH unaffected, ensuring compliance with international regulations. The product is currently marked as obsolete, but it remains a reliable choice for existing designs and applications.

LM556CM Features

• Dual 555-Type Timer/Oscillator: The LM556CM features two independent 555-type timer/oscillator circuits, allowing for versatile timing and oscillation functions within a single package.
• Wide Operating Voltage Range: With a supply voltage range of 4.5V to 16V, the LM556CM can be used in a variety of power supply configurations, enhancing its flexibility in different applications.
• Low Supply Current: The IC operates with a supply current of up to 30 mA, making it energy-efficient and suitable for battery-powered or low-power applications.
• Surface-Mount Package: The 14SOP package type facilitates easy integration into modern printed circuit board (PCB) designs, supporting automated assembly processes.
• Moisture Sensitivity Level (MSL) 1: The LM556CM has an MSL rating of 1, indicating it is not moisture-sensitive and can be stored and handled without special precautions.
• Compliance and Safety: The LM556CM is classified under HTSUS code 8542.39.0001 and is REACH unaffected, ensuring compliance with environmental and safety regulations.

LM556CM Applications

The LM556CM is ideal for a variety of applications that require precise timing and oscillation functions. Some specific use cases include:

• Pulse Generation: The dual timer/oscillator capability allows for the generation of precise pulses, making it suitable for applications such as strobe lights, LED drivers, and other pulse-controlled devices.
• Frequency Modulation: The LM556CM can be used to create frequency-modulated signals, which are essential in communication systems and signal processing applications.
• Timing Circuits: The IC can be configured to create monostable or astable multivibrators, which are fundamental components in timing circuits for applications like timers, delays, and sequential controllers.
• Waveform Generation: The LM556CM can generate various waveforms, including square waves, sawtooth waves, and triangular waves, which are useful in test and measurement equipment, audio processing, and other waveform generation applications.

Conclusion of LM556CM

The LM556CM is a versatile dual 555-type timer/oscillator IC that offers a wide range of technical specifications and performance benefits. Its dual timer/oscillator functionality, wide operating voltage range, and low supply current make it a reliable choice for a variety of timing and oscillation applications. The surface-mount package and moisture sensitivity level 1 rating ensure ease of integration and handling. Despite being marked as obsolete, the LM556CM remains a valuable component for existing designs and applications, providing precise timing and oscillation functions in a compact and efficient package.