Overview
The SN74HC245APWR is a high-speed CMOS logic level transceiver manufactured by Texas Instruments. This 8-bit bidirectional bus transceiver is designed to facilitate signal conversion between different voltage level systems. It is housed in a 20-pin TSSOP package, making it suitable for surface mount applications. The device is particularly useful in scenarios requiring data bus communication with minimal propagation delay, making it a popular choice in industrial and consumer electronics.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Function | Bus Transceiver | - | Single 8-CH |
| Technology | CMOS | - | - |
| Input Logic Level | TTL | - | - |
| Output Type | 3-State | - | - |
| Number of Channels | 8 | - | - |
| Operating Temperature | -40 to 85 | °C | - |
| Supply Voltage (Typical) | 5 | V | - |
| Supply Voltage (Min) | 4.5 | V | - |
| Supply Voltage (Max) | 5.5 | V | - |
| Propagation Delay Time | 38 | ns | - |
Key Features
- Bidirectional 8-bit data transfer capability.
- Supports TTL input logic levels with CMOS output levels.
- 3-State outputs for bus-oriented applications.
- Operates at a wide supply voltage range from 4.5V to 5.5V.
- Low propagation delay of 38ns ensures high-speed operation.
Applications
The SN74HC245APWR is widely used in various applications including industrial automation, consumer electronics, and automotive systems. Its ability to handle bidirectional data transfer makes it ideal for use in data buses, memory interfaces, and communication systems where different voltage levels need to be interfaced. Additionally, its robust design and high-speed capabilities make it suitable for applications requiring reliable and fast data transmission.
Q & A
1. What is the primary function of the SN74HC245APWR?
The SN74HC245APWR is an 8-bit bidirectional bus transceiver designed to facilitate signal conversion between different voltage level systems.
2. What is the operating voltage range of the SN74HC245APWR?
The device operates within a supply voltage range of 4.5V to 5.5V.
3. What type of output does the SN74HC245APWR support?
It supports 3-State outputs, which are essential for bus-oriented applications.
4. What is the propagation delay of the SN74HC245APWR?
The propagation delay is 38ns, ensuring high-speed operation.
5. In what package is the SN74HC245APWR available?
It is available in a 20-pin TSSOP package, suitable for surface mount applications.
6. What are the typical applications of the SN74HC245APWR?
Typical applications include industrial automation, consumer electronics, and automotive systems.
7. What is the input logic level supported by the SN74HC245APWR?
It supports TTL input logic levels.
8. What is the output logic level of the SN74HC245APWR?
The output logic level is CMOS.
9. How many channels does the SN74HC245APWR have?
It has 8 bidirectional channels.
10. What is the operating temperature range of the SN74HC245APWR?
The device operates within a temperature range of -40°C to 85°C.
