The LM556 is a dual timer IC, similar to 555 Timer IC but here it has two such timer devices into a single package. It is considered to be the modern replacement for 555 since it uses the latest CMOS technology.
NE555 Timer IC has an operating voltage from +5V to +18V and the output pin can source/sink up to 150mA current. The minimum threshold voltage for the trigger pin is 2.4V when operated with 5V.
Pin configuration
Pin Number |
Pin Name |
Description |
1,13 |
Discharge |
Open collector output which discharges a capacitor. |
2,12 |
Threshold |
Compares the voltage applied to the terminal with a reference voltage. |
3,11 |
Control Voltage |
Controls the threshold and trigger levels. |
4,10 |
Reset |
A negative pulse applied to this pin to disable or reset the timer. |
5,9 |
Out |
Normally connected to load |
6,8 |
Trigger |
Responsible for the transition of the flip-flop from set to reset. |
7 |
Ground |
Ground Pin |
14 |
Vcc |
Supply Voltage Pin |
Features & Specifications
- Two precision Timers in one single package
- Operating Voltage Range: 5V to 18V.
- The source/sink current of the output pin is 150mA
- Supply Current: 10mA
- Operating Temperature: 0 to 70°C
- Active Pullup or Pulldown
- Designed to Be Interchangeable With Signetics NE556, SA556, and SE556
- Available in 14-pin SOIC, and MDIP packages
Package Contents
1× LM556/NE556 Dual Timer IC
Additional Resources
The LM556 is a dual timer IC, similar to 555 Timer IC but here it has two such timer devices into a single package. It is considered to be the modern replacement for 555 since it uses the latest CMOS technology.
NE555 Timer IC has an operating voltage from +5V to +18V and the output pin can source/sink up to 150mA current. The minimum threshold voltage for the trigger pin is 2.4V when operated with 5V.
Pin configuration
Pin Number |
Pin Name |
Description |
1,13 |
Discharge |
Open collector output which discharges a capacitor. |
2,12 |
Threshold |
Compares the voltage applied to the terminal with a reference voltage. |
3,11 |
Control Voltage |
Controls the threshold and trigger levels. |
4,10 |
Reset |
A negative pulse applied to this pin to disable or reset the timer. |
5,9 |
Out |
Normally connected to load |
6,8 |
Trigger |
Responsible for the transition of the flip-flop from set to reset. |
7 |
Ground |
Ground Pin |
14 |
Vcc |
Supply Voltage Pin |
Features & Specifications
- Two precision Timers in one single package
- Operating Voltage Range: 5V to 18V.
- The source/sink current of the output pin is 150mA
- Supply Current: 10mA
- Operating Temperature: 0 to 70°C
- Active Pullup or Pulldown
- Designed to Be Interchangeable With Signetics NE556, SA556, and SE556
- Available in 14-pin SOIC, and MDIP packages
Package Contents
1× LM556/NE556 Dual Timer IC
Additional Resources
Returns Policy
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
1. Manufacturing Defect
If you receive a product with a manufacturing defect, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.2. Wrong Item Shipped
If you receive a different product then the ordered one, please contact us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.
Limitation of Returns
We don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product.Shipping
We ship to all over India with flat shipping rate of INR 45 for all the orders below INR 499. For all the orders above INR 499, we offer a free shipping. Please contact to our support team at support@quartzcomponents.com for any question related to shipping.
Returns Policy
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
1. Manufacturing Defect
If you receive a product with a manufacturing defect, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.2. Wrong Item Shipped
If you receive a different product then the ordered one, please contact us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.
Limitation of Returns
We don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product.Shipping
We ship to all over India with flat shipping rate of INR 45 for all the orders below INR 499. For all the orders above INR 499, we offer a free shipping. Please contact to our support team at support@quartzcomponents.com for any question related to shipping.