LM556 - Dual Timer

LM556 Dual Timer IC - Dual 555 Timing Controller

The LM556 Dual Timer IC is an integrated circuit containing two independent 555 timers. It generates accurate time delays or continuous oscillations. Timing for each function is established using external resistors and capacitors. The IC supports both astable and monostable operating modes. Outputs can sink or source up to 200mA. Both output and supply are TTL compatible, facilitating integration into digital systems.

Specifications:

• IC Type: Dual Timer
• Equivalent: Dual 555 Timer
• Operating Modes: Astable, Monostable
• Timing Range: Microseconds to Hours
• Output Current (Sink/Source): 200mA
• Logic Compatibility: TTL
• Number of Timers: 2 (Independent)
• Trigger/Reset: Falling Waveforms

Key features and benefits:

• Integrates two independent 555 timers in one package
• Provides precise timing from microseconds up to hours
• Supports both astable and monostable operating modes
• Features adjustable duty cycle for waveform generation
• Output and supply are fully TTL compatible
• Outputs capable of sinking or sourcing up to 200mA
• Each timer operates independently, sharing only VCC and ground

Applications:

• Precision timing circuits
• Accurate pulse generation
• Sequential timing applications
• Time delay generation
• Pulse Width Modulation (PWM)
• Pulse Position Modulation (PPM)

Frequently Asked Questions:

Q: Can the LM556 replace two individual 555 timer ICs?
A: Yes, the LM556 integrates two independent 555 timing circuits within a single package, allowing it to perform the functions of two separate 555 timers.

Q: What timing modes are supported by the LM556?
A: The LM556 supports both astable and monostable operating modes for continuous oscillations or single time delays.

Q: What is the maximum output current for each timer on the LM556?
A: Each output of the LM556 is capable of sinking or sourcing up to 200mA.

Q: Is the LM556 compatible with 5V digital logic?
A: Yes, both the output and supply of the LM556 are TTL compatible, allowing direct interface with 5V digital systems.

Package Includes:

*Image shown is a representation only.

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