Overview
The 74HCT4538D,118 is a dual retriggerable precision monostable multivibrator integrated circuit produced by Nexperia USA Inc. This component is part of the 74HCT series, which is known for its high-speed CMOS logic with TTL-compatible inputs. The device is designed to generate a single pulse of fixed duration in response to a trigger signal, making it versatile for various timing and pulse generation applications.
Key Specifications
| Type Number | VCC (V) | Logic Switching Levels | Output Drive Capability (mA) | tpd (ns) | Power Dissipation Considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package Name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT4538D | 4.5 - 5.5 | TTL | ± 4 | 30 | Low | -40 ~ 125 | 74 | 1.7 | 32.8 | SO16 (SOT109-1) |
| 74HCT4538PW | 4.5 - 5.5 | TTL | ± 4 | 30 | Low | -40 ~ 125 | 109 | 1 | 37 | TSSOP16 (SOT403-1) |
Key Features
- Dual Retriggerable Precision Monostable Multivibrator: The device can generate two independent monostable pulses, each with a fixed duration determined by external components.
- TTL-Compatible Inputs: The inputs are compatible with TTL logic levels, ensuring seamless integration with other TTL-based systems.
- High-Speed Operation: The propagation delay is as low as 30 ns, making it suitable for high-speed applications.
- Wide Operating Temperature Range: The device operates over a temperature range of -40°C to 125°C, making it reliable in various environmental conditions.
- Low Power Dissipation: The device has low power dissipation, which is beneficial for power-sensitive applications.
- Surface Mount Packages: Available in SO16 (SOT109-1) and TSSOP16 (SOT403-1) packages, facilitating easy mounting on PCBs.
Applications
- Timing and Pulse Generation: The 74HCT4538D,118 is ideal for generating precise timing pulses in various electronic circuits.
- Signal Processing and Conditioning: It can be used to condition and process signals in audio, video, and other signal processing applications.
- Automotive and Industrial Control Systems: The device's wide operating temperature range and reliability make it suitable for use in automotive and industrial control systems.
- Consumer Electronics: It can be used in consumer electronics such as TVs, radios, and other electronic devices requiring precise timing signals.
Q & A
- What is the primary function of the 74HCT4538D,118?
The primary function is to generate a single pulse of fixed duration in response to a trigger signal as a dual retriggerable precision monostable multivibrator.
- What are the supply voltage ranges for the 74HCT4538D,118?
The supply voltage range is 4.5 V to 5.5 V.
- What are the available package types for the 74HCT4538D,118?
The device is available in SO16 (SOT109-1) and TSSOP16 (SOT403-1) packages.
- What is the propagation delay of the 74HCT4538D,118?
The propagation delay is approximately 30 ns.
- What is the operating temperature range of the 74HCT4538D,118?
The operating temperature range is -40°C to 125°C.
- Is the 74HCT4538D,118 compatible with TTL logic levels?
Yes, the inputs are TTL-compatible.
- What is the output drive capability of the 74HCT4538D,118?
The output drive capability is ± 4 mA.
- Is the 74HCT4538D,118 suitable for high-speed applications?
Yes, it is suitable due to its low propagation delay and high-speed operation.
- What are some common applications of the 74HCT4538D,118?
Common applications include timing and pulse generation, signal processing, automotive and industrial control systems, and consumer electronics.
- How many independent monostable pulses can the 74HCT4538D,118 generate?
The device can generate two independent monostable pulses.
- Is the 74HCT4538D,118 RoHS compliant?
Yes, the device is RoHS compliant.
