Overview
The SA555DRE4 is a precision timer integrated circuit produced by Texas Instruments. It is part of the 555 timer family, known for its versatility and reliability in various timing applications. This device is designed to operate over a wide temperature range of -55°C to 85°C, making it suitable for use in harsh environments. The SA555DRE4 is available in a SOIC-8 package, which is compact and suitable for a variety of electronic designs.
Key Specifications
| Parameter | Test Conditions | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | V | 5 | 15 | ||
| Threshold Voltage | VCC = 15 V | V | 8.8 | 10 | 11.2 |
| Threshold Voltage | VCC = 5 V | V | 2.4 | 3.3 | 4.2 |
| Trigger Voltage | VCC = 15 V | V | 1.1 | 1.67 | 2.2 |
| Trigger Voltage | VCC = 5 V | V | 0.9 | 1.67 | 2.2 |
| Reset Voltage | TA = -55°C to 125°C | V | 0.1 | 0.4 | |
| Discharge Switch Off-State Current | nA | 20 | 100 | ||
| Output-Pulse Rise Time | CL = 15 pF, TA = 25°C | ns | 100 | 200 | |
| Output-Pulse Fall Time | CL = 15 pF, TA = 25°C | ns | 100 | 200 |
Key Features
- Precision timing: The SA555DRE4 offers high accuracy in timing intervals, making it suitable for applications requiring precise timing.
- Wide operating temperature range: It operates from -55°C to 85°C, which is ideal for use in harsh environmental conditions.
- Low power consumption: The device is designed to operate with low power, making it energy-efficient.
- Compatibility with TTL inputs: With a 5-V supply, the output levels are compatible with TTL inputs, facilitating integration with other digital circuits.
- Monostable and astable operation: The SA555DRE4 can be configured for both monostable and astable modes, providing flexibility in different applications.
Applications
- Timing and pulse generation: The SA555DRE4 is widely used in applications requiring precise timing and pulse generation, such as in digital circuits, oscillators, and pulse generators.
- Alarm systems: Its reliability and precision make it suitable for use in alarm systems and other safety-critical applications.
- Automotive systems: The device's ability to operate over a wide temperature range makes it suitable for use in automotive systems.
- Industrial control systems: It is used in various industrial control systems where precise timing is essential.
Q & A
- What is the operating temperature range of the SA555DRE4?
The SA555DRE4 operates over a temperature range of -55°C to 85°C. - What are the typical supply voltage ranges for the SA555DRE4?
The device operates with a supply voltage (VCC) ranging from 5 V to 15 V. - Is the SA555DRE4 compatible with TTL inputs?
Yes, with a 5-V supply, the output levels of the SA555DRE4 are compatible with TTL inputs. - What are the common configurations for the SA555DRE4?
The SA555DRE4 can be configured for both monostable and astable modes. - What is the typical output-pulse rise and fall time for the SA555DRE4?
The typical output-pulse rise and fall times are 100 ns to 200 ns with a load capacitance (CL) of 15 pF. - What is the discharge switch off-state current of the SA555DRE4?
The discharge switch off-state current is typically between 20 nA and 100 nA. - Can the SA555DRE4 be used in harsh environmental conditions?
Yes, the SA555DRE4 is designed to operate in harsh environmental conditions due to its wide operating temperature range. - What package type is the SA555DRE4 available in?
The SA555DRE4 is available in a SOIC-8 package. - What are some common applications of the SA555DRE4?
The SA555DRE4 is commonly used in timing and pulse generation, alarm systems, automotive systems, and industrial control systems. - Is the SA555DRE4 still in production?
No, the SA555DRE4 is no longer manufactured, but substitutes are available.
