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Name: LMC555CMX
Brand: National Semiconductor
SKU: LMC555CMX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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National Semiconductor LMC555CMX

Part No.:: LMC555CMX

Manufacturer:: National Semiconductor

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: LMC555CMX.pdf

Description:: LMC555 - 555 TIMER WITH LOW POWE

In Stock:: 3381

Quantity:: Add To Cart

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LMC555CMX Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Bulk
Series:
-
ProductStatus:
Active
Type:
555 Type, Timer/Oscillator (Single)
Count:
-
Frequency:
3MHz
Voltage-Supply:
1.5V ~ 15V
Current-Supply:
150 µA
OperatingTemperature:
-40°C ~ 85°C

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LMC555CMX information

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LMC555CMX Typical application Circuitry

LMC555CMX

The LMC555CMX is a part of the 555 timer series, specifically the LMC555 which is a CMOS version of the standard 555 timer. This variant is ideal for battery-powered applications because to its low power consumption and wide supply voltage range.

1. Ground (Pin 1): This pin is linked to the circuit's ground.

2. Trigger (Pin 2): This pin is the input to the negative edge-triggered flip-flop which sets the timing interval. It is usually connected to the threshold pin through a resistor-capacitor network.

3. Output (Pin 3): This pin is the output of the timer. It can drive TTL inputs and can source or sink up to 200 mA.

4. Reset (Pin 4): This pin resets the timer. When connected to ground, it disables the timer, and when left unconnected or connected to a high voltage level, the timer operates normally.

5. Control Voltage (Pin 5): This pin allows direct access to the 2/3 Vcc internal voltage divider point and can be used to modulate the output waveform.

6. Threshold (Pin 6): This pin is connected to the internal comparator that resets the flip-flop and is usually connected to the trigger pin via a capacitor, forming part of the RC timing network.

7. Discharge (Pin 7): This pin is attached to the flip-flop's open-collector output and is used to discharge the timing capacitor in astable mode.

8. Supply Voltage (Pin 8): This pin is connected to the positive supply voltage of the circuit.

9. Decoupling Capacitor: A decoupling capacitor (0.01 to 0.1 µF) is recommended between the Vcc (Pin 8) and Ground (Pin 1) to filter noise on the power supply line.

10. Bypassing Reset: The reset pin (Pin 4) can be bypassed if not used by connecting it to Vcc to avoid any possibility of false triggering.

11. Control Voltage Stabilization: If the control voltage (Pin 5) isn't utilized, it's usually linked to ground via a 0.01 F capacitor to keep the threshold voltage stable.

12. Timing Components: The timing components (resistors and capacitors) should be chosen based on the desired frequency and pulse width for the application.

The LMC555CMX timer is versatile and can be configured in numerous ways, including as a monostable, astable, or bistable device, depending on the external components and their connections. Because of its versatility, it may be used for a broad range of applications, from basic timers and pulse production to complicated waveform creation.

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6. What is the process for return or replacement of LMC555CMX?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LMC555CMX we delivered, we will accept the replacement or return of the LMC555CMX only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of LMC555CMX.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations