画像は参考用です
SE555DT
+BOMIC OSC SGL TIMER 500KHZ 8-SOIC
-
メーカーRFE/フューゼテック
-
メーカー品番 #SE555DT
-
在庫状況5308
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Supplier | STMicroelectronics |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Obsolete |
| Type | 555 Type, Timer/Oscillator (Single) |
| Frequency | 500kHz |
| Voltage-Supply | 4.5V ~ 18V |
| Current-Supply | 10 mA |
| OperatingTemperature | -55°C ~ 125°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| SupplierDevicePackage | 8-SOIC |
概要
Description
In monostable mode, the 555 timer functions as a one-shot pulse generator, producing a single output pulse of a predetermined duration in response to a trigger input. In astable mode, it acts as an oscillator, generating a continuous square wave output, which makes it useful for creating clock pulses or PWM signals. Bistable mode, or flip-flop mode, allows it to serve as a basic memory element, toggling the output between two stable states.
Key features of the SE555DT include high temperature stability, low power consumption, and the ability to operate with a wide range of supply voltages. Its simplicity and effectiveness make it a popular choice in electronics projects and educational settings for demonstrating basic timing and waveform generation principles.
Equivalent
Features
1. Timing Functions: Can be configured for monostable or astable operation, providing flexible timing solutions.
2. Wide Supply Voltage Range: Operates between 4.5V and 16V, making it versatile for different electronic projects.
3. Output Compatibility: Capable of driving TTL (Transistor-Transistor Logic) outputs.
4. Adjustable Duty Cycle: Users can modify the timing cycle by adjusting external resistor and capacitor values.
5. High Temp Stability: Ensures reliable operation under varying temperature conditions.
6. Low Power Consumption: Efficient operation suitable for battery-powered devices.
7. Fast Rise and Fall Times: Typically less than 100 nanoseconds, offering quick response in switching applications.
8. Current Drive: Can source or sink up to 200mA, which is suitable for driving small loads directly.
These features make the SE555DT a versatile and robust choice for both amateur and professional electronic designers requiring precise timing functionality.
Pinout
1. GND (Pin 1): Ground reference for the IC.
2. Trigger (Pin 2): Initiates the timing interval when voltage drops below 1/3 of VCC.
3. Output (Pin 3): Provides the output signal of the timer.
4. Reset (Pin 4): Resets the timer when a low signal is applied. If not used, it should be connected to VCC.
5. Control Voltage (Pin 5): Allows modification of the threshold voltage; often unused by connecting to a capacitor.
6. Threshold (Pin 6): Ends the timing interval when voltage exceeds 2/3 of VCC.
7. Discharge (Pin 7): Discharges the timing capacitor to ground.
8. VCC (Pin 8): Supply voltage for the IC.
The SE555DT is used in various applications including timers, pulse generation, and oscillators due to its stability and versatility.