Overview
The NE555DE4, produced by Texas Instruments, is a single precision timer integrated circuit. It is part of the NE555 family, known for its versatility and reliability in generating accurate time delays or oscillations. This component is widely used in various electronic circuits due to its ability to operate in both monostable and astable modes. The NE555DE4 is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package and operates within a temperature range of 0 to 70°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage | 4.5 to 15 | V |
| Output Current | ±200 | mA |
| Trigger Voltage Level | 1.45 to 1.9 | V |
| Threshold Voltage Level | 2.7 to 4.2 | V |
| Reset Voltage Level | 0.1 to 1.1 | V |
| Discharge Switch On-State Voltage | 0.15 to 0.4 | V |
| Package Thermal Impedance (θJA) | 95 | °C/W |
Key Features
- Timing from microseconds to hours
- Astable or monostable operation
- Adjustable duty cycle
- TTL-compatible output can sink or source up to 200mA
- Control voltage pin (CONT) allows adjustment of comparator thresholds
- Active low reset input (RESET) for initiating new timing cycles
- High current timer output signal
Applications
The NE555DE4 is widely used in various applications, including:
- Pulse generation and timing circuits
- Frequency dividers and oscillators
- Alarm and timer circuits
- Sequential timing and delay circuits
- Power supply sequencing and monitoring
Q & A
- What is the operating temperature range of the NE555DE4?
The NE555DE4 operates within a temperature range of 0 to 70°C. - What are the supply voltage requirements for the NE555DE4?
The supply voltage for the NE555DE4 ranges from 4.5V to 15V. - Can the NE555DE4 operate in both monostable and astable modes?
Yes, the NE555DE4 can operate in both monostable and astable modes. - What is the maximum output current of the NE555DE4?
The NE555DE4 can sink or source up to 200mA of current. - How is the duty cycle adjusted in the NE555DE4?
The duty cycle can be adjusted independently using two external resistors and a single external capacitor in astable mode. - What is the purpose of the control voltage pin (CONT) in the NE555DE4?
The control voltage pin allows adjustment of the comparator thresholds. - How does the reset input (RESET) function in the NE555DE4?
The reset input is active low and forces the output and discharge low, initiating a new timing cycle. - What is the typical application of the NE555DE4?
The NE555DE4 is commonly used in pulse generation, frequency dividers, alarm circuits, and sequential timing circuits. - What package type is the NE555DE4 available in?
The NE555DE4 is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. - What are the trigger and threshold voltage levels for the NE555DE4?
The trigger voltage level ranges from 1.45V to 1.9V, and the threshold voltage level ranges from 2.7V to 4.2V.
