Texas Instruments

LM556 MWC  

Programmable Timers and Oscillators

LM556 MWC Description

The LM556 MWC is a dual timer/oscillator IC, part of the renowned 555 type family, manufactured by Texas Instruments. This integrated circuit is designed for surface mount applications and is available in a die package, making it suitable for compact and high-density designs. The LM556 MWC operates within a supply voltage range of 4.5V to 16V and draws a supply current of 10 mA, ensuring efficient power usage. Despite its obsolescence, the LM556 MWC remains a reliable choice for various timing and oscillation applications due to its robust performance and compatibility with a wide range of electronic systems. It is also RoHS3 compliant, adhering to stringent environmental standards, and has a moisture sensitivity level (MSL) of 1, indicating it is suitable for unlimited exposure to ambient conditions.

LM556 MWC Features

The LM556 MWC offers several key features that distinguish it from other timing and oscillator ICs:

• Dual Timer/Oscillator Functionality: The LM556 MWC integrates two independent timer/oscillator circuits, providing flexibility for complex timing applications.
• Wide Operating Voltage Range: With a supply voltage range of 4.5V to 16V, the LM556 MWC can operate in a variety of power environments, making it versatile for different electronic designs.
• Low Supply Current: Drawing only 10 mA of supply current, the LM556 MWC ensures minimal power consumption, which is crucial for battery-operated and energy-efficient systems.
• Surface Mount Compatibility: The surface mount mounting type allows for easy integration into modern PCB designs, facilitating compact and high-density electronic assemblies.
• Die Package: The die package format of the LM556 MWC enables further miniaturization and customization, ideal for applications where space is a premium.
• Environmental Compliance: The RoHS3 compliance of the LM556 MWC ensures that it meets the latest environmental standards, making it suitable for use in environmentally conscious designs.
• Unlimited Moisture Sensitivity Level: With an MSL of 1, the LM556 MWC can be stored and handled in various environmental conditions without the risk of moisture-related damage.

LM556 MWC Applications

The LM556 MWC is well-suited for a variety of applications due to its dual timer/oscillator functionality and wide operating voltage range. Some specific use cases include:

• Pulse Generation: The LM556 MWC can generate precise pulses for applications such as digital clocks, frequency dividers, and signal processing circuits.
• Timing Circuits: Its dual timer functionality allows for the creation of complex timing sequences, making it ideal for sequential control systems and multi-stage timing applications.
• Oscillator Circuits: The LM556 MWC can be configured as an oscillator for generating stable clock signals, essential for microcontroller and communication systems.
• Monostable and Astable Multivibrators: The IC can be used to design monostable and astable multivibrators for applications such as debouncing switches, generating square waveforms, and creating time delays.
• Battery-Powered Devices: The low supply current and wide voltage range make the LM556 MWC suitable for battery-operated devices where power efficiency and flexibility are critical.

Conclusion of LM556 MWC

The LM556 MWC, despite being obsolete, remains a valuable component in the electronics industry due to its robust performance, dual timer/oscillator functionality, and wide operating voltage range. Its surface mount compatibility, die package format, and RoHS3 compliance make it a versatile and environmentally friendly choice for various timing and oscillation applications. Whether used in pulse generation, timing circuits, or oscillator circuits, the LM556 MWC offers reliable performance and flexibility, making it an ideal component for designers seeking efficient and compact solutions.

LM556 MWC Documents

Download datasheets and manufacturer documentation for LM556 MWC