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MC1455DR2
+BOMIC OSC SINGLE TIMER 8-SOIC
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Nhà sản xuấtonsemi
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Ông. Phần #MC1455DR2
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Bảng dữ liệu MC1455DR2 DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Supplier | Rochester Electronics, LLC |
| Package | Bulk |
| ProductStatus | Obsolete |
| Type | 555 Type, Timer/Oscillator (Single) |
| Current-Supply | 10 mA |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| SupplierDevicePackage | 8-SOIC |
Tổng quan
Description
Key features of the MC1455DR2 include its ability to operate in both monostable and astable modes, allowing it to function as a timer, delay generator, or pulse-width modulation controller. The IC operates over a wide voltage range, typically from 4.5V to 16V, and can source or sink up to 200 mA of output current.
Its notable specifications include an adjustable duty cycle, high output current capability, and precise timing intervals. The MC1455DR2 is widely used in applications such as LED flashers, tone generators, and frequency modulation circuits. Its robustness and reliability have made it a staple in both educational and industrial electronics projects.
Equivalent
Features
Pinout
1. GND (Pin 1): Ground reference voltage.
2. Trigger (Pin 2): Responsible for triggering the timer when it goes below 1/3 of the voltage supply.
3. Output (Pin 3): This pin outputs the result of the timer operation.
4. Reset (Pin 4): Resets the timer, active low.
5. Control Voltage (Pin 5): Allows control of the threshold and trigger levels.
6. Threshold (Pin 6): Compares the voltage with a reference to determine when to reset the output.
7. Discharge (Pin 7): Discharges the timing capacitor.
8. VCC (Pin 8): Positive supply voltage.
The MC1455DR2 can be used in various applications such as timing, pulse generation, and oscillation, similar to the standard 555 timer but in a smaller, surface-mount package suited for compact or automated circuit assembly.
Manufacturer
Application
1. Monostable Multivibrator: Used for generating precise time delays.
2. Astable Multivibrator: Functions as an oscillator for generating continuous square waves.
3. Pulse Width Modulation (PWM): Used in applications requiring control of output pulse width.
4. Frequency Divider: Helpful in dividing frequency for clock generation.
5. LED/Lamp Flashing: Used in light indicators and alert systems.
6. Tone Generation: Employed in audio applications for tone and sound generation.
7. Capacitive Touch Sensors: Used in simple touch-sensitive applications.
The MC1455DR2 is versatile and used widely in consumer electronics, industrial controls, and communication systems.