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Name: NE555P
Brand: Texas Instruments
SKU: NE555P
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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Texas Instruments NE555P

Part No.:: NE555P

Manufacturer:: Texas Instruments

Package:: 8-DIP (0.300, 7.62mm)

Datasheet:: NE555P.pdf

Description:: IC OSC SINGLE TIMER 100KHZ 8-DIP

In Stock:: 109664

Quantity:: Add To Cart

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NE555P Typical application Circuitry

NE555P

The NE555P is a highly versatile integrated circuit used primarily as a timer or oscillator. Its functions span across a broad spectrum, from simple timing and delay tasks to more complex applications like pulse width modulation (PWM) and frequency generation.

Key Parameters:

1. Operating Voltage Range: Typically from 4.5V to 15V.

2. Output Drive Capability: Up to 200mA can be sunk or sourced.

3. Temperature Stability: Ensures consistent performance over varying temperatures.

4. Timing Accuracy: Reliable timing is achievable through external resistors and capacitors.

The NE555P is frequently used in astable multivibrators, sometimes referred to as free-running oscillators.

Circuit Connectivity Synopsis:

- Pin 1 (GND): Connects straight to the negative power supply.

- Pin 2 (TRIG): Internally tied to Pin 6 for astable operation.

- Pin 3 (OUT): Delivers the oscillating output signal.

- Pin 4 (RESET): Tying to the positive rail (Vcc) disables this pin's function.

- Pin 5 (CTRL): To stabilize the operation, a decoupling capacitor is usually connected to the ground.

- Pin 6 (THRS): Interlinked with Pin 2 and involved in setting the frequency.

- Pin 7 (DISCH): Linked to the timing capacitor's charge and discharge.

- Pin 8 (Vcc): Affixed to the positive voltage supply.

Constituent Timing Components:

- R1 and R2 (Timing Resistors): Together with C1, they define the frequency and duty cycle.

- C1 (Timing Capacitor): Influences the timing cycle of the oscillations.

Frequency and Duty Cycle Formulation:

The output frequency (f) is calculated by f = 1.44 / ((R1 + 2 * R2) * C1), and the duty cycle is determined by \[Duty Cycle = \frac{(R1 + R2)}{(R1 + 2 * R2)}\] × 100%.

Considerations for Circuit Design:

1. Power Supply Regulation: Ensure the NE555P is supplied with a voltage within its specified range.

2. Precision of Components: Opt for components with minimal tolerance for accurate frequency and duty cycle control.

3. Output Load Matching: The connected load must be within the drive capability of the NE555P.

4. Minimizing Noise: Introduce a decoupling capacitor near Pin 8 to reduce power supply noise.

5. Thermal Conditions: Continuous high-frequency operation might necessitate considerations for heat dissipation.

In its astable configuration, the NE555P is adept at producing continuous square wave signals, making it ideal for applications such as LED flashers, tone generators in electronic toys, and clock pulses in digital circuits.

NE555P information

NE555P Specifications

Package/Case:
8-DIP (0.300, 7.62mm)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
555 Type, Timer/Oscillator (Single)
Count:
-
Frequency:
100kHz
Voltage-Supply:
4.5V ~ 16V
Current-Supply:
10 mA
OperatingTemperature:
0°C ~ 70°C

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6. What is the process for return or replacement of NE555P?

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 NE555P we delivered, we will accept the replacement or return of the NE555P 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 NE555P.

(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