Overview
The SN74AHCT244DWR is an 8-bit buffer/line driver produced by Texas Instruments. This integrated circuit belongs to the AHCT logic family, which combines high-speed performance with low power consumption. It is designed to provide high-current drive capability, making it suitable for driving heavy loads such as bus lines in digital systems. The SN74AHCT244DWR is commonly used in applications requiring signal buffering, isolation, and driving, such as in microcontrollers, memory interfaces, and communication systems. Its key selling points include its compatibility with TTL levels, robust noise immunity, and the ability to drive up to 15 LSTTL loads, making it a versatile choice for various digital circuit designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Family | AHCT | - | High-speed CMOS with TTL compatibility |
| Number of Channels | 8 | - | 8-bit buffer/line driver |
| Input Voltage Range | 0 to 5.5 | V | Compatible with TTL levels |
| Output Voltage Range | 0 to 5.5 | V | - |
| Propagation Delay | 8.5 | ns | Typical at 5V |
| Output Drive Capability | 15 | LSTTL Loads | - |
| Operating Temperature Range | -40 to 85 | °C | - |
| Package | SOIC-20 | - | Surface-mount package |
Key Features
- High-speed performance with low power consumption.
- Compatible with TTL input and output levels.
- High-current drive capability, suitable for driving bus lines.
- Robust noise immunity, ensuring reliable operation in noisy environments.
- 3-state outputs for bus-oriented applications.
- Wide operating voltage range of 4.5V to 5.5V.
Applications
The SN74AHCT244DWR is widely used in various digital systems for signal buffering and driving. Its typical applications include:
- Microcontroller Systems: Used to drive I/O ports and interface with external devices.
- Memory Interfaces: Provides buffering for address and data lines in memory systems.
- Communication Systems: Ensures signal integrity in data transmission lines.
- Industrial Automation: Used in control systems for driving sensors and actuators.
- Consumer Electronics: Employed in devices requiring reliable signal handling, such as printers and displays.
Q & A
1. What is the logic family of the SN74AHCT244DWR?
The SN74AHCT244DWR belongs to the AHCT logic family, which is a high-speed CMOS family with TTL compatibility.
2. What is the operating voltage range of this IC?
The operating voltage range is 4.5V to 5.5V.
3. How many channels does the SN74AHCT244DWR have?
It has 8 channels, making it an 8-bit buffer/line driver.
4. What is the propagation delay of the SN74AHCT244DWR?
The typical propagation delay is 8.5 ns at 5V.
5. Can the SN74AHCT244DWR drive TTL loads?
Yes, it can drive up to 15 LSTTL loads.
6. What is the package type of the SN74AHCT244DWR?
It comes in an SOIC-20 surface-mount package.
7. Is the SN74AHCT244DWR suitable for bus-oriented applications?
Yes, it features 3-state outputs, making it ideal for bus-oriented applications.
8. What is the maximum operating temperature of this IC?
The maximum operating temperature is 85°C.
9. Can the SN74AHCT244DWR be used in industrial automation?
Yes, it is commonly used in industrial automation for driving sensors and actuators.
10. What is the primary function of the SN74AHCT244DWR?
Its primary function is to buffer and drive signals in digital systems, ensuring signal integrity and high-current drive capability.
