Details

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BUY NE555 DIP8 https://www.utsource.net/itm/p/12609635.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	4.5	-	16	V
Supply Current (Quiescent)	ICC	No Load	-	3	-	mA
Output Current (Sink)	IOL	VO = 0.4V	200	-	-	mA
Output Current (Source)	IOH	VO = VCC - 1.7V	-	200	-	mA
Trigger Input Voltage	Vtr	Active Low	-	1/3 Vcc	-	V
Threshold Input Voltage	Vth	Active High	-	2/3 Vcc	-	V
Reset Input Voltage	VR	Active Low	-	0.7	-	V
Control Voltage	VC	External Control	-	-	-	V

Instructions for NE555 DIP8:

1. Pin Configuration:

   • Pin 1: Ground (GND)
   • Pin 2: Trigger
   • Pin 3: Output
   • Pin 4: Reset
   • Pin 5: Control Voltage
   • Pin 6: Threshold
   • Pin 7: Discharge
   • Pin 8: Supply Voltage (Vcc)

2. Power Supply:

   • Connect Pin 8 to the positive supply voltage (Vcc) and Pin 1 to ground (GND). The NE555 can operate from 4.5V to 16V.

3. Trigger Input (Pin 2):

   • A low signal on this pin initiates the timing cycle. It is typically triggered by a voltage less than 1/3 of Vcc.

4. Threshold Input (Pin 6):

   • This pin monitors the capacitor voltage in astable and monostable modes. The timing cycle ends when this pin detects a voltage greater than 2/3 of Vcc.

5. Output (Pin 3):

   • This pin provides the output signal, which can be high or low depending on the state of the timer.

6. Reset (Pin 4):

   • Applying a low signal here resets the timer immediately. Typically tied to Vcc if not used.

7. Control Voltage (Pin 5):

   • An external voltage can be applied here to modify the internal voltage divider. Often bypassed to ground with a capacitor to avoid noise.

8. Discharge (Pin 7):

   • In astable mode, this pin discharges the capacitor through an external resistor. It should be connected to the capacitor and resistor network as required.

9. External Components:

   • For precise timing, use accurate resistors and capacitors. Ensure that the component values are within the operational limits of the NE555.

10. Protection:

    • Use appropriate decoupling capacitors near the power pins to ensure stable operation.

(For reference only)