LM556CMX/NOPB Integrated Circuits (ICs)

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The LM556CMX/NOPB is a high performance dual timer integrated circuit (IC) designed for general-purpose timing and oscillator based applications. It is ideal for use in high-precision frequency generation and pulse width modulation (PWM) applications. The LM556CMX/NOPB can be used to produce frequencies from sub-Hz up to 40MHz, enabling a wide range of applications. The device also features a built-in oscillator, selectable duty cycle and dynamic impedance control, as well as comprehensive operating temperature and timing protection.

Features

The LM556CMX/NOPB provides the following features:

• Wide operating voltage range: 0.8V to 16V
• Programmable frequency range: sub-Hz to 40MHz
• Selectable duty cycle up to 99.9%
• Built-in oscillator
• Dynamic impedance control
• Comprehensive operating temperature and timing protection

Application Field

The LM556CMX/NOPB is suitable for a variety of clock/timing applications, ranging from general-purpose timing to precision frequency generation. Typical applications of the LM556CMX/NOPB include the following:

• Multi-frequency timing
• Pulse width modulation (PWM)
• Frequency synthesis
• Phase locked loops (PLLs)
• Robotics and automation
• Audio and video systems
• Medical equipment
• Automotive systems

Working Principle

The LM556CMX/NOPB is a dual timer integrated circuit (IC). It consists of two independent timing elements which can be configured to operate either separately or in tandem. Each timing element is based on a multivibrator circuit and contains two flip-flops with complement outputs (Q not Q) connected together to form a pair.

The LM556CMX/NOPB is designed to produce a wide range of frequencies and timing intervals. The device has an integrated oscillator which allows frequency generation up to 40MHz. This oscillator can also be used to drive a PWM circuit with selectable duty cycle. The device also includes a dynamic impedance control system which allows the user to adjust the internal reactance of the oscillator, allowing for greater flexibility and higher accuracy in frequency generation.

In addition to the oscillator, the LM556CMX/NOPB features comprehensive operating temperature and timing protection. This ensures that the device will perform reliably in a wide range of operating conditions. The device is available in a variety of packages, including dual and quad configurations, as well as thermally enhanced variants.

Conclusion

The LM556CMX/NOPB is a high performance dual timer IC designed for general-purpose timing and oscillator based applications. It provides a wide operating voltage range, programmable frequency range up to 40MHz and selectable duty cycle up to 99.9%. The device also offers comprehensive operating temperature and timing protection, ensuring reliable operation in a variety of applications. The device can be used for multi-frequency timing, pulse width modulation (PWM), frequency synthesis, phase locked loops (PLLs), robotics and automation, audio and video systems, medical equipment, and automotive systems.

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