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SA555DX
+BOMIC OSC SINGLE TIMER 8-SOP
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Manufactureronsemi
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Mfr. Part #SA555DX
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Package 8-SOIC (0.154, 3.90mm Width)
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In Stock3329
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Specifications
| Attribute | Value |
| Supplier | onsemi |
| Package | Tape & Reel (TR) |
| ProductStatus | Obsolete |
| Type | 555 Type, Timer/Oscillator (Single) |
| Voltage-Supply | 4.5V ~ 16V |
| Current-Supply | 7.5 mA |
| OperatingTemperature | -40°C ~ 85°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| SupplierDevicePackage | 8-SOIC |
Overview
Description
Key features of the SA555DX include its ability to operate in both astable and monostable modes, offering versatility in timing and waveform generation. It also boasts a wide operating voltage range and low power consumption, making it efficient for battery-operated devices. The timer's precision is achieved through accurate threshold and trigger levels, ensuring consistent performance.
In summary, the SA555DX is a robust and versatile timer IC that provides precise timing solutions for various electronic applications. Its improved specifications over standard versions make it a preferred choice for designers seeking reliability and efficiency.
Equivalent
Features
1. Wide Supply Voltage Range: Operates from 4.5V to 16V, making it versatile for different applications.
2. Low Power Consumption: Efficient power usage, which is beneficial for battery-powered devices.
3. High Stability: Offers accurate timing with minimal drift over time and temperature changes.
4. Adjustable Duty Cycle: Allows for control over the output pulse width, making it suitable for a variety of pulse modulation applications.
5. Monostable and Astable Operation: Can function as a one-shot timer or as an oscillator, providing flexibility for different circuit designs.
6. Short Rise and Fall Times: Ensures fast response and clean output signals.
7. Temperature Range: Typically operates over a wide temperature range, ensuring reliability in diverse environments.
The SA555DX is ideal for applications such as LED flashers, PWM circuits, tone generators, and more, due to its robust performance and versatility.
Pinout
1. Ground (GND): Pin 1 - Connects to the ground or zero voltage reference.
2. Trigger (TRIG): Pin 2 - When the voltage drops below 1/3 of the supply voltage, it sets the flip-flop and drives the output high.
3. Output (OUT): Pin 3 - The output pin that delivers the timer's output signal.
4. Reset (RESET): Pin 4 - Resets the timer when a low voltage is applied, overriding other inputs; it's typically held high if not used.
5. Control Voltage (CTRL): Pin 5 - Allows modulation of the threshold and trigger levels; usually connected to a capacitor to ground if not used.
6. Threshold (THRES): Pin 6 - Compares the voltage to 2/3 of the supply voltage and resets the flip-flop when exceeded, driving the output low.
7. Discharge (DISCH): Pin 7 - Connects to the timing capacitor and discharges it when the output is low in astable mode.
8. VCC: Pin 8 - Positive supply voltage terminal.
These pins facilitate various operations such as monostable, astable, and bistable modes.
Manufacturer
Application
1. Monostable Operation: It functions as a one-shot pulse generator, useful in timer applications like missing pulse detection.
2. Astable Operation: It generates continuous waveforms, suitable for clock pulse generation, tone generation, and LED flashers.
3. Pulse Width Modulation (PWM): Employed in controlling power delivery to devices like motors and LEDs.
4. Delay Timers: It is used in creating time delays for applications such as alarms and automatic shutdowns.
5. Frequency Divider: Utilized in frequency division circuits for digital clocks and counters.
Its versatility and ease of use make it suitable for educational purposes and prototyping.