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- RadioShack LM556 Dual Timer IC
RadioShack LM556 Dual Timer IC
HKD 227
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These devices provide two monolithic, independent timing circuits of the NE555, SA555, SE555 or SE555C type in each package.
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What Stands Out
Product Details
- These devices provide two monolithic, independent timing circuits of the NE555, SA555, SE555 or SE555C type in each package. These circuits can be operated in the astable or monostable mode with external resistor-capacitor timing control. The basic timing provided by the RC time constant may be actively controlled by modulating the bias of the control voltage input. The threshold and trigger levels are normally two-thirds and one-third respectively of VCC. These levels can be altered by use of the control voltage terminal. When the trigger input falls below trigger level, the flip-flop is set and the output goes high. If the trigger input falls below trigger level, the flip-flop is set and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset input can override all other inputs and can be used to initiate a new timing cycle. When the reset input goes low, the flip-flop is reset and the output goes low. Whenever the output is low, a low-impedance path is provided between the discharge terminal and ground.
| Model | 556CN |
| Brand | RadioShack |
| Number of pins | 14 |
| Pieces | 1 |
| Item Weight | 0.02 lbs (10 grams) |
Who Should Buy?
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Electronics Hobbyists
Ideal for DIY projects, allowing enthusiasts to create timers, oscillators, and pulse generators easily.
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Robotics Students
Useful for educational purposes in robotics, helping students understand timing circuits and control mechanisms.
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Circuit Designers
Beneficial for engineers designing integrated circuits that require precise timing functions in various applications.
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Complex Applications
Not suitable for advanced designs needing high precision or complex functionalities beyond basic timing.
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Non-technical Users
Beginners or non-technical users may struggle with understanding and implementing analog ICs effectively.
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Limited Support
Users seeking extensive technical support may find it lacking, as resources may not be readily available.
Product Description
Customer Questions & Answers
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Question:
What is the weight of the product?
Answer: The product weighs 0.353 ounces. -
Question:
Can this work with other timer types?
Answer: Yes, it is compatible with NE555, SA555, SE555, or SE555C types. -
Question:
How can the timing be controlled?
Answer: Timing can be controlled using external resistor-capacitor combinations.
RadioShack Electronic Communication Components Editorial Review
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Important information
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HKD 227
Order now and get it around Wednesday, June 24
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Features & Benefits
- Lightweight design at just 0.353 ounces.
- Features two independent timing circuits in one package.
- Operates in astable or monostable mode.
- Includes external resistor-capacitor timing control.
- Provides low-impedance path for optimal performance.
- Compatible with NE555, SA555, SE555, or SE555C types.

