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SA555N
+BOMIC OSC SINGLE TIMER 500KHZ 8-DIP
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제조업체ST마이크로일렉트로닉스(주)
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제조업체 부품 #SA555N
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사양
| 속성 | 가치 |
| Supplier | STMicroelectronics |
| Package | Tube |
| ProductStatus | Obsolete |
| Type | 555 Type, Timer/Oscillator (Single) |
| Frequency | 500kHz |
| Voltage-Supply | 4.5V ~ 16V |
| Current-Supply | 10 mA |
| OperatingTemperature | -40°C ~ 105°C |
| Package/Case | 8-DIP (0.300, 7.62mm) |
| SupplierDevicePackage | 8-DIP |
개요
Description
In monostable mode, the SA555N generates a single pulse of a specified duration in response to a trigger input. In astable mode, it continuously oscillates between high and low states, making it suitable for clock generation and pulse-width modulation (PWM). In bistable mode, it functions as a basic memory element, toggling its output state with each trigger input.
The SA555N operates with a supply voltage range of 4.5V to 15V and can source or sink up to 200mA of output current. It features adjustable duty cycles, frequency stability, and a temperature range suitable for many consumer and industrial applications. Its DIP-8 package makes it easy to integrate into circuits.
Equivalent
Features
1. Operating Modes: It operates in monostable, astable, and bistable modes, allowing a variety of timing and pulse generation applications.
2. Wide Supply Voltage Range: It functions efficiently across a voltage range of 4.5V to 16V.
3. Timing: Provides accurate timing from microseconds to hours, depending on external resistor and capacitor values.
4. Output Compatibility: The output can source or sink up to 200mA, making it compatible with TTL and CMOS logic levels.
5. Temperature Stability: Offers good temperature stability, with minimal variation in timing with temperature changes.
6. Low Current Draw: In standby mode, it draws minimal current, enhancing battery life in portable applications.
7. Adjustable Duty Cycle: The duty cycle can be adjusted in astable mode, offering flexibility in waveform generation.
8. Package Type: Available in an 8-pin DIP package, facilitating easy integration into various circuits.
These features make the SA555N suitable for applications such as timers, pulse generators, and waveform generators.
Pinout
1. Ground (GND): Pin 1 is connected to the ground or the negative supply voltage.
2. Trigger (TRIG): Pin 2 is used to initiate the timing cycle. A low voltage (below 1/3 of VCC) on this pin triggers the timer.
3. Output (OUT): Pin 3 provides the output signal. This pin will be high or low depending on the timer's state.
4. Reset (RESET): Pin 4 is used to reset the timer. Bringing this pin low resets the timer, overriding all other inputs.
5. Control Voltage (CV): Pin 5 allows for the adjustment of the threshold and trigger levels by applying an external voltage. Usually, it's connected to a capacitor for stability.
6. Threshold (THRES): Pin 6 is used to reset the timer when the voltage exceeds 2/3 of VCC.
7. Discharge (DISCH): Pin 7 is connected to a transistor that discharges the timing capacitor to stop the timing cycle.
8. VCC: Pin 8 is connected to the positive supply voltage.
These functions enable the SA555N to be used in monostable, astable, and bistable modes.
Manufacturer
Application
1. Astable Multivibrator: Used for generating square wave signals and clock pulses.
2. Monostable Multivibrator: Utilized in timing applications, such as timers, delay circuits, and debounce circuits.
3. Pulse Width Modulation (PWM): Useful in controlling motor speed and light intensity.
4. Frequency Divider: Employed in frequency division tasks.
5. Tone Generation: Used in audio applications for sound generation.
6. Switch Debouncing: Prevents false triggering in mechanical switches.
Its reliability and simplicity make it popular in educational and commercial projects.