Overview
The SN74AHCT245DWR is an octal buffer and line driver with 3-state outputs, manufactured by Texas Instruments. This device is designed for high-speed data transfer applications, particularly in scenarios requiring bidirectional communication between data buses. It features a wide operating voltage range from 4.5 V to 5.5 V, making it compatible with both 3V and 5V systems, although the specified range for this model is 4.5 V to 5.5 V.
The SN74AHCT245DWR is housed in a 20-pin SOIC-20_300mil RoHS package, which is compact and suitable for various digital systems. The device includes separate logic inputs and outputs for each buffer, enabling Hi-Z outputs for bus turnaround and matching typical 15 Ohm bus impedances.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (V) | 4.5 | - | 5.5 | V |
| Number of Channels | 8 | - | - | - |
| Output Drive Current | - | ±6 | - | mA |
| Propagation Delay (tpd) | 14 | - | - | ns |
| Input Current | - | - | 1 | µA |
| Supply Current (ICC) | - | - | 80 | µA |
| Operating Temperature Range (°C) | -40 | - | 85 | °C |
| Package Type | - | - | SOIC-20_300mil RoHS | - |
Key Features
- Advanced Logic Integration: Designed for high-speed data transfer applications with advanced logic integration.
- Fast Switching Speed: Typical propagation delay of 14 ns, ensuring fast data transfer.
- Compact Package Design: Available in a 20-pin SOIC-20_300mil RoHS package, which is compact and suitable for various digital systems.
- High-Current 3-State Outputs: Can drive bus lines directly or up to 15-LSTTL loads.
- Low Power Consumption: Maximum static supply current of 80 µA.
- TTL-Voltage Compatible Inputs: Inputs are compatible with TTL voltage levels.
- Dual Bus Tristate Driver: Enables high-speed data transfer while minimizing power consumption.
- Thermal Shutdown Protection and Integrated Output Protection Diodes: Enhances device reliability and protection.
Applications
The SN74AHCT245DWR is versatile and can be used in a variety of applications, including:
- Industrial Control Systems: For high-speed data transfer and reliable communication between different parts of the system.
- Automotive Systems: Suitable for the harsh environments and high-speed data transfer requirements in automotive applications.
- Telecommunications: For reliable and fast data transfer in telecommunications equipment.
- Digital Systems: In any digital system requiring increased drive capability and bidirectional communication between data buses.
Q & A
- What is the operating voltage range of the SN74AHCT245DWR?
The operating voltage range is from 4.5 V to 5.5 V.
- How many channels does the SN74AHCT245DWR have?
The device has 8 channels.
- What is the typical propagation delay of the SN74AHCT245DWR?
The typical propagation delay is 14 ns.
- What is the maximum supply current of the SN74AHCT245DWR?
The maximum static supply current is 80 µA.
- Are the inputs of the SN74AHCT245DWR TTL-voltage compatible?
Yes, the inputs are TTL-voltage compatible.
- What type of package does the SN74AHCT245DWR come in?
The device is housed in a 20-pin SOIC-20_300mil RoHS package.
- What is the operating temperature range of the SN74AHCT245DWR?
The operating temperature range is from -40°C to 85°C.
- Does the SN74AHCT245DWR have thermal shutdown protection?
Yes, it features thermal shutdown protection and integrated output protection diodes.
- Can the SN74AHCT245DWR drive up to 15-LSTTL loads?
Yes, the device can drive bus lines directly or up to 15-LSTTL loads.
- What are some common applications of the SN74AHCT245DWR?
Common applications include industrial control systems, automotive systems, telecommunications, and other digital systems requiring high-speed data transfer.
