Overview
The SN74AHC244DWR is a high-speed CMOS octal buffer and line driver manufactured by Texas Instruments. This component is designed to provide robust signal buffering and driving capabilities, making it suitable for a wide range of digital applications. The SN74AHC244DWR is part of the AHC family, which offers improved speed and power efficiency compared to standard CMOS devices. Its market positioning targets engineers and designers working on industrial automation, consumer electronics, and automotive systems, where reliable signal integrity and high-speed operation are critical. The product stands out for its low power consumption, high noise immunity, and compatibility with a broad range of voltage levels.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Family | AHC | - | Advanced High-Speed CMOS |
| Number of Channels | 8 | - | Octal Buffer/Line Driver |
| Supply Voltage Range | 2 V to 5.5 V | V | Wide operating range |
| Propagation Delay | 6.5 ns | ns | Typical at 5 V |
| Output Current | ±8 mA | mA | High drive capability |
| Operating Temperature Range | -40°C to 85°C | °C | Industrial grade |
| Package | SOIC-20 | - | Surface Mount |
| Input Capacitance | 3 pF | pF | Typical |
| Power Dissipation | 500 mW | mW | Maximum |
| RoHS Compliance | Yes | - | Environmentally friendly |
Key Features
- High-Speed Operation: Optimized for fast signal propagation, with a typical delay of 6.5 ns at 5 V.
- Wide Voltage Range: Supports operation from 2 V to 5.5 V, making it versatile for various logic levels.
- High Noise Immunity: Ensures reliable performance in noisy environments.
- Low Power Consumption: Designed for energy-efficient applications.
- Octal Configuration: Provides eight independent buffer/driver channels in a single package.
- Robust Output Drive: Capable of sourcing or sinking up to 8 mA per channel.
Applications
The SN74AHC244DWR is widely used in applications requiring signal buffering and line driving. Typical use cases include:
- Industrial Automation: For interfacing sensors, actuators, and control systems.
- Consumer Electronics: In devices such as smartphones, tablets, and gaming consoles for signal conditioning.
- Automotive Systems: For communication buses like CAN and LIN, where reliable signal integrity is essential.
- Telecommunications: In networking equipment for signal amplification and distribution.
- Embedded Systems: For general-purpose I/O expansion and level shifting.
Q & A
1. What is the purpose of the SN74AHC244DWR?
The SN74AHC244DWR is an octal buffer and line driver designed to amplify and condition digital signals for reliable transmission over long distances or to multiple destinations.
2. What is the operating voltage range of this component?
It operates within a voltage range of 2 V to 5.5 V, making it compatible with various logic levels.
3. What is the typical propagation delay?
The typical propagation delay is 6.5 ns when operating at 5 V.
4. Is the SN74AHC244DWR RoHS compliant?
Yes, it is RoHS compliant, ensuring it meets environmental standards.
5. What is the maximum output current per channel?
Each channel can source or sink up to 8 mA.
6. What package does the SN74AHC244DWR come in?
It is available in an SOIC-20 package, suitable for surface-mount applications.
7. Can this component be used in automotive applications?
Yes, it is suitable for automotive systems, particularly for communication buses like CAN and LIN.
8. What is the operating temperature range?
It operates reliably from -40°C to 85°C, making it suitable for industrial environments.
9. How does the AHC family differ from standard CMOS?
The AHC family offers faster operation and lower power consumption compared to standard CMOS devices.
10. What are the key advantages of using the SN74AHC244DWR?
Its key advantages include high-speed operation, wide voltage range, low power consumption, and robust output drive capability.
