LM556/NE556 Dual Timer IC

LM556/NE556 Dual Timer IC LM556/NE556 Dual Timer IC

SKU SKU QC0080

Availability Availability 25 In stock

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

LM556 Datasheet

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

LM556 Datasheet

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.

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