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LMC555 - 555 TIMER WITH LOW POWE
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HerstellerNational Semiconductor
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Herstellerteil #LMC555CMMX/NOPB
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Datenblatt LMC555CMMX/NOPB DataSheet
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Paket VSSOP-8
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Auf Lager3577
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Spezifikationen
| Attribut | Wert |
| Package / Case | Bulk |
| Part Status | Active |
| Type | 555 Type, Timer/Oscillator (Single) |
| Frequency | 3MHz |
| Voltage - Supply | 1.5V ~ 15V |
| Supply Current | 150 µA |
| Operating Temperature | -40°C ~ 85°C |
| Supplier Device Package | 8-VSSOP |
Übersicht
Description
The LMC555CMMX/NOPB offers advantages like low power consumption, a wide supply voltage range (1.5V to 15V), and high output drive capability. It provides accurate timing with minimal external components, typically requiring only resistors and capacitors to set the time intervals.
Its CMOS technology ensures low current draw, making it suitable for battery-operated devices. The IC is commonly used in applications such as pulse generation, LED and lamp flashers, tone generation, and time delay circuits. Its compact form factor, reliability, and ease of use make it a popular choice among hobbyists and professionals alike.
Equivalent
Features
1. CMOS Technology: Low power consumption with a wide operating voltage range from 1.5V to 15V.
2. High Frequency: Capable of operating up to 3 MHz.
3. Low Power Consumption: Designed for low power applications, drawing significantly less current than traditional bipolar 555 timers.
4. Precision Timing: Offers better accuracy and stability over a range of temperatures and supply voltages.
5. Astable and Monostable Operation: Can be configured for both astable (oscillator) and monostable (one-shot) modes.
6. Low Supply Current Spike: Minimizes glitches in power rails, beneficial for battery-powered devices.
7. Adjustable Duty Cycle: Allows for precise control over the duty cycle in astable mode.
8. Small Form Factor: Comes in a compact package, making it suitable for space-constrained applications.
These features make the LMC555CMMX/NOPB suitable for a variety of applications, including timing delays, pulse generation, and sequential timing.
Pinout
1. GND (Pin 1): Ground reference voltage.
2. TRIG (Pin 2): Trigger input; a falling edge triggers the timer's operation.
3. OUT (Pin 3): Output; delivers the timer pulse.
4. RESET (Pin 4): Reset; active-low to disable the timer.
5. CTRL (Pin 5): Control Voltage; allows the modification of the threshold and trigger levels.
6. THRESH (Pin 6): Threshold; input to the comparator, resets the flip-flop when voltage exceeds 2/3 of the supply voltage.
7. DISCH (Pin 7): Discharge; connected to the capacitor in timing applications, discharges it when the output is low.
8. VCC (Pin 8): Supply Voltage; powers the IC.
The LMC555CMMX/NOPB is used for generating accurate time delays or oscillations, and it features low power consumption and a wide supply voltage range.
Manufacturer
Application
1. Timing Delays: Used in generating precise time delays.
2. Pulse Generation: Ideal for creating pulse-width modulation signals.
3. Oscillators: Functions as a clock generator in basic oscillator circuits.
4. Frequency Division: Used in frequency division circuits.
5. Monostable Operation: Suitable for triggering applications requiring a single output pulse.
6. Astable Operation: Used in applications needing continuous square wave generation.
7. LED and Lamp Flashing: Drives LED flashers and lamp blinkers.
8. Tone Generation: Used in sound synthesis and tone generating circuits.
These attributes make it versatile for use in consumer electronics, automotive, and industrial control systems.