Overview
The SN74LS645DW is a high-performance octal bus transceiver manufactured by Texas Instruments. Designed for asynchronous bidirectional communication between data buses, this component is part of the 74LS logic family and is widely used in digital systems. Its primary function is to enable data transfer between two buses based on the direction control input. The SN74LS645DW is particularly suitable for applications requiring reliable data transmission and isolation in industrial, automotive, and consumer electronics.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Logic Family | 74LS | - | - |
| Package | SOIC-20 | - | - |
| Supply Voltage | 4.75V ~ 5.25V | V | - |
| Number of Channels | 8 | - | - |
| Output Type | 3-State | - | - |
| Propagation Delay | 15 ns | ns | - |
| Operating Temperature | 0°C ~ 70°C | °C | - |
| Mounting Type | Surface Mount | - | - |
| Output Current (High/Low) | 15mA, 48mA | mA | - |
Key Features
- Enables bidirectional data transfer between two buses.
- Supports 3-state outputs for bus isolation.
- Operates within a wide supply voltage range (4.75V to 5.25V).
- Low propagation delay of 15 ns ensures high-speed data transmission.
- Robust design suitable for industrial and automotive applications.
Applications
The SN74LS645DW is ideal for use in various digital systems, including industrial automation, automotive electronics, and consumer electronics. It is commonly employed in data communication systems, where it facilitates reliable and efficient data transfer between buses. Its ability to isolate buses using 3-state outputs makes it particularly useful in systems requiring multiple data paths.
Q & A
1. What is the primary function of the SN74LS645DW?
The SN74LS645DW is an octal bus transceiver designed for bidirectional data transfer between two buses.
2. What is the operating voltage range of this component?
The operating voltage range is 4.75V to 5.25V.
3. What is the propagation delay of the SN74LS645DW?
The propagation delay is 15 ns.
4. Can the SN74LS645DW isolate buses?
Yes, it supports 3-state outputs for bus isolation.
5. What is the package type of the SN74LS645DW?
It comes in an SOIC-20 package.
6. What is the maximum operating temperature of this component?
The maximum operating temperature is 70°C.
7. Is the SN74LS645DW suitable for automotive applications?
Yes, its robust design makes it suitable for automotive electronics.
8. How many channels does the SN74LS645DW support?
It supports 8 channels.
9. What is the output current capability of this component?
The output current is 15mA for high and 48mA for low.
10. What is the logic family of the SN74LS645DW?
It belongs to the 74LS logic family.
