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NE555D
+NomenclatureIC OSC SINGLE TIMER 8-SOP
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FabricantSemi - conducteurs
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Pièce fabricant #NE555D
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Package SOIC-8
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En stock4324
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Spécifications
| Attribut | Valeur |
| Package | Tube |
| ProductStatus | Obsolete |
| Type | 555 Type, Timer/Oscillator (Single) |
| Voltage-Supply | 4.5V ~ 16V |
| Current-Supply | 7.5 mA |
| OperatingTemperature | 0°C ~ 70°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| SupplierDevicePackage | 8-SOIC |
Présentation
Description
In monostable mode, the NE555D generates a single pulse of a specific duration in response to a trigger signal. In astable mode, it operates as an oscillator, producing a continuous square wave output, useful for clock pulses or LED flashes. In bistable mode, it functions as a basic flip-flop or latch.
The device operates with a supply voltage ranging from 4.5V to 15V, offering flexibility for various applications. It features a low power consumption and high output drive capability, allowing it to control a wide range of loads. The NE555D is popular in both hobbyist and professional circuits due to its simplicity and adaptability across numerous electronic projects.
Equivalent
Features
1. Timing from Microseconds to Hours: Offers adjustable time delays ranging from microseconds to several hours.
2. Astable and Monostable Operation: Can function in both astable (oscillator) and monostable (timer) modes.
3. Wide Supply Voltage Range: Operates on a voltage range from 4.5V to 15V, suitable for TTL and CMOS logic levels.
4. High Output Drive Capability: Can source or sink up to 200 mA of output current, capable of driving TTL loads.
5. Low Power Consumption: Consumes minimal power in idle states.
6. Temperature Stability: Provides reliable performance over a wide temperature range.
7. Adjustable Duty Cycle: Allows the duty cycle to be set with external resistors and capacitors.
8. Simple to Use: Requires few external components, making it easy to integrate into various circuits.
9. Available in DIP-8 and SOIC-8 Packages: Offers flexibility in design and application.
These features make the NE555D versatile for applications in timing, pulse generation, and oscillator functions.
Pinout
1. Pin 1 (GND): Ground reference voltage.
2. Pin 2 (Trigger): Activates the timer when the voltage falls below 1/3 of the supply voltage.
3. Pin 3 (Output): Outputs the signal; it can either source or sink current.
4. Pin 4 (Reset): Resets the timer; active low. Connect to VCC if not used.
5. Pin 5 (Control Voltage): Allows changing the threshold voltage; typically connected to a capacitor if unused.
6. Pin 6 (Threshold): Resets the flip-flop when the voltage exceeds 2/3 of the supply voltage.
7. Pin 7 (Discharge): Discharges the timing capacitor to ground.
8. Pin 8 (VCC): Supply voltage, typically between 4.5V and 15V.
The NE555D can operate in monostable, astable, and bistable modes, making it versatile for various timing and oscillator applications.