NE556 Dual Timer IC

NE556 Dual Timer IC

The NE556 is a dual version of the popular NE555 timer IC, integrating two independent, high-precision 555 timers in a single package. It is designed for applications requiring two timing, pulse generation, or oscillation functions while saving board space and reducing component count.

Each timer inside the NE556 can operate in monostable, astable, or bistable modes, making it extremely versatile for timing delays, pulse generation, oscillators, PWM generation, and clock circuits. The NE556 offers reliable performance, good temperature stability, and can source or sink relatively high output current, similar to the standard 555 timer.

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Applications

• Dual time delay generators
• Dual oscillators and clock generators
• Pulse generators and PWM circuits
• LED flashers and sequencers
• Tone generators and alarm circuits
• Motor speed and light dimmer controllers
• Educational, hobby, and general-purpose electronics projects

Features

• Type: Dual general-purpose timer IC (two 555 timers in one chip)
• Operating modes: Monostable, Astable, Bistable (for each timer)
• Wide supply voltage range: 4.5V to 16V (typical)
• High output drive capability (can source or sink up to ~200mA, depending on variant)
• Good temperature stability
• Independent control of both timers
• Simple external component requirement
• Reliable and widely used design
• Package options: DIP-14 / SMD (SOIC-14) (depending on variant)

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