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Timer ICsCompatible

NE555 Timer IC (DIP-8) – Pack of 5

The classic 555 timer in a breadboard-friendly DIP-8 package. Make blinkers, tone generators, delays, PWM and pulse circuits – no microcontroller needed.

Part Number
NE555
Function
Precision timer / oscillator
Supply Voltage
4.5–16 V
Output Current
Up to 200 mA (sink or source)
Supply Current
3 mA typical at 5 V
Operating Temperature
0 to 70 °C
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Specifications

Manufacturer Part Number
NE555P
Part Number
NE555
Function
Precision timer / oscillator
Supply Voltage
4.5–16 V
Output Current
Up to 200 mA (sink or source)
Supply Current
3 mA typical at 5 V
Operating Temperature
0 to 70 °C
Package
DIP-8
Pack Quantity
5

Electrical characteristics

Absolute maximum ratings

Going above these limits can permanently damage the part. Design with a safety margin and use the typical values below for normal operation.

  • Supply voltageVCC
    Max rating
    18 V
  • Output currentIO
    Max rating
    ±225 mA
  • Operating junction temperatureTJ
    Max rating
    150 °C

Typical characteristics

  • Supply voltageVCC
    Condition: Recommended operating
    Min
    4.5 V
    Typ
    —
    Max
    16 V
  • Supply current (output low, no load)ICC
    Condition: VCC = 5 V
    Min
    —
    Typ
    3 mA
    Max
    6 mA

Downloads

Description

Decades after its launch the 555 is still one of the best-selling chips, because a few resistors and a capacitor turn it into an oscillator or a timer. It's the heart of countless beginner projects: LED flashers, sirens, touch switches and motor speed controllers.

Features

  • Astable (oscillator), monostable (one-shot) and bistable modes
  • Supply 4.5–16 V
  • Output can sink or source up to 200 mA – drives an LED, buzzer or small relay directly
  • Timing from microseconds to hours
  • DIP-8 package

Pinout

1 GND, 2 TRIG, 3 OUT, 4 RESET, 5 CTRL, 6 THRES, 7 DISCH, 8 VCC. Pin 1 is next to the notch/dot.

Quick formula

Astable frequency ≈ 1.44 / ((R1 + 2·R2) · C). Example: R1 = 1 kΩ, R2 = 68 kΩ, C = 10 µF → about 1 Hz.

Package includes

5 × NE555 timer ICs