Overview
The SN74ACT245DWRG4 is an octal bus transceiver produced by Texas Instruments, designed for asynchronous two-way communication between data buses. This device is part of the 74ACT series, known for its high-speed and low-power consumption characteristics. It operates within the voltage range of 4.5V to 5.5V, making it suitable for a variety of applications where TTL-compatible inputs are required.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5.5 | V |
| High-Level Input Voltage (VIH) | 2 | 2 | V |
| Low-Level Input Voltage (VIL) | 0.8 | 0.8 | V |
| High-Level Output Current (IOH) | -24 | -24 | mA |
| Low-Level Output Current (IOL) | 24 | 24 | mA |
| Operating Free-Air Temperature (TA) | -40 | 85 | °C |
| Propagation Delay Time (tpd) at 5V | 8 | 8 | ns |
Key Features
- VCC Operation Range: The device operates within a supply voltage range of 4.5V to 5.5V, making it compatible with TTL logic levels.
- High-Speed Operation: The SN74ACT245DWRG4 has a maximum propagation delay time of 8ns at 5V, supporting high-speed data transmission.
- TTL-Compatible Inputs: The inputs accept voltages up to 5.5V and are TTL-voltage compatible, ensuring seamless integration with other TTL-based systems.
- 3-State Outputs: The device features 3-state outputs, which can be set to high-impedance mode, allowing for bus sharing and reducing power consumption.
- Asynchronous Communication: Designed for asynchronous two-way communication between data buses, minimizing external timing requirements.
Applications
- Professional Audio Equipment: Suitable for use in professional audio systems due to its high-speed and low-noise characteristics.
- Video and Signage Systems: Used in video and signage applications where high-speed data transmission is critical.
- Appliances and Consumer Electronics: Found in various consumer electronics and appliances where reliable and fast data communication is necessary.
- Factory Automation and Control Systems: Utilized in industrial automation and control systems for efficient data exchange between different components.
Q & A
- What is the operating voltage range of the SN74ACT245DWRG4?
The SN74ACT245DWRG4 operates within a supply voltage range of 4.5V to 5.5V.
- What is the maximum propagation delay time of the SN74ACT245DWRG4 at 5V?
The maximum propagation delay time is 8ns at 5V.
- Are the inputs of the SN74ACT245DWRG4 TTL-compatible?
- What type of outputs does the SN74ACT245DWRG4 have?
The device features 3-state outputs that can be set to high-impedance mode.
- What is the operating temperature range of the SN74ACT245DWRG4?
The operating free-air temperature range is from -40°C to 85°C.
- What are some common applications of the SN74ACT245DWRG4?
It is used in professional audio equipment, video and signage systems, appliances, and factory automation and control systems.
- What package types are available for the SN74ACT245DWRG4?
The device is available in SOIC (DW), SSOP (DB), and other package types.
- Is the SN74ACT245DWRG4 RoHS compliant?
- What is the significance of the 3-state output feature in the SN74ACT245DWRG4?
The 3-state output feature allows for bus sharing and reduces power consumption by setting the outputs to high-impedance mode when not in use.
- How does the SN74ACT245DWRG4 support asynchronous communication?
The device is designed for asynchronous two-way communication between data buses, minimizing external timing requirements.
