IC Timer NE555 (DIP-8)
Integrated Circuit
Part Number / SKU: NE555 / LM555 (DIP-8 Package)
📋 Technical Specifications
Type: Timer IC
Package: DIP-8
Operating Voltage: 4.5V – 15V
Output Current: up to 200mA
Timing Range: microseconds to hours
Modes: Monostable, Astable, Bistable
Temperature Range: 0°C to +70°C
🔹 NE555 Timer IC क्या है?
NE555 एक बहुत लोकप्रिय IC है जो timing, delay, pulse और oscillator बनाने के लिए use होती है।
🔹 यह क्या कर सकती है?
LED blinking
Buzzer sound control
Delay timer
Pulse generator
🔹 Pin Configuration (8 Pins)
Pin No Name काम
1 GND Ground
2 Trigger Start signal
3 Output Output signal
4 Reset Reset
5 Control Voltage control
6 Threshold Stop level
7 Discharge Capacitor discharge
8 VCC Power supply
📊 Pin Diagram
_________
| |
1 GND VCC 8
2 TRIG DIS 7
3 OUT THR 6
4 RST CTRL 5
|_________|
🔹 Modes of Operation
👉 1. Astable Mode (Blinking)
LED ON/OFF बार-बार
Oscillator बनाता है
👉 2. Monostable Mode (Timer)
एक बार trigger → fixed time output
👉 3. Bistable Mode
ON/OFF toggle (switch जैसा)
🔹 Astable Frequency Formula
f=
(R
1
+2R
2
)C
1.44
👉 इससे तुम LED blink speed control कर सकते हो
🔹 Simple Example
LED blinking circuit
Buzzer alarm
Water level alert
🔹 Important Tips
Capacitor सही value का use करें
Reset pin को high रखें
Noise से बचने के लिए capacitor लगाएं
🔹 What is NE555 Timer IC?
NE555 is a widely used timer IC for generating delays, pulses and oscillations.
🔹 What can it do?
LED blinking
Sound generation
Time delay circuits
Pulse generation
🔹 Pin Configuration
Pin Name Function
1 GND Ground
2 Trigger Start
3 Output Output
4 Reset Reset
5 Control Control voltage
6 Threshold Stop
7 Discharge Discharge
8 VCC Supply
🔹 Modes
Astable → Oscillator
Monostable → One-shot timer
Bistable → Flip-flop
🔹 Frequency Formula
f=
(R
1
+2R
2
)C
1.44
🔹 Applications
LED flasher
Alarm circuits
Timer projects
DIY electronics
🔹 Tips
Use proper capacitor
Keep reset high
Add noise filter capacitor