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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74ACT |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | Open Drain |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-VFQFN Exposed Pad |
| Supplier Device Package | 20-VQFN (2.5x4.5) |
| ROHS |  |
The SN74ACT7541RKSR is a single non-inverting buffer from Texas Instruments, designed for 5V systems. It features an open-drain output with a 24mA sink capability. This buffer is ideal for level shifting, driving high-voltage loads, and bus interfacing in automotive and industrial applications. The 20-VFQFN package with exposed pad provides excellent thermal dissipation for reliable operation in demanding environments.
- 5V Operation (4.5V-5.5V): Compatible with standard 5V logic systems, ensuring easy integration.
- Open-Drain Output: Allows for level shifting to higher voltages and wired-OR logic configurations.
- Extended Temperature Range (-40°C to 125°C): Suitable for automotive and industrial applications.
- Exposed Pad Package: Enhances thermal performance, improving reliability in high-temperature environments.
5V Bus Interfacing and Isolation
The SN74ACT7541RKSR is designed for 5V systems, providing robust buffering for legacy bus architectures. Its open-drain output allows for wired-OR connections, which is useful in interrupt and status lines.
Level Shifting from 5V to Higher Voltages
With an open-drain output and external pull-up, this buffer can shift 5V logic signals to higher voltages (e.g., 12V or 24V) for industrial control applications, enabling direct interface with relays or PLCs.
Driving High-Voltage Loads
The open-drain output can sink up to 24mA, allowing it to drive loads such as LEDs, optocouplers, or small relays when connected to a higher voltage supply through a pull-up resistor.
Automotive ECU Signal Conditioning
With a temperature range of -40°C to 125°C, this buffer is suitable for automotive ECUs, where it can condition and drive sensor signals or control lines in harsh environments.
Industrial Control and Automation
In industrial settings, this buffer can be used to interface 5V logic with higher-voltage actuators or sensors, providing reliable signal conversion and isolation.
Power Supply Sequencing and Monitoring
The open-drain output can be used to monitor power supply status signals, such as power-good indicators, and combine them using wired-OR logic for system-level monitoring.
- Q: What is the logic family of the SN74ACT7541RKSR?
- A: It belongs to the 74ACT family, which is known for high-speed, 5V operation with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is a single-channel, non-inverting buffer with an open-drain output.
- Q: How many channels does it have?
- A: It has 1 channel, providing a single buffer in a 20-VFQFN package.
- Q: What is the output type?
- A: The output is open-drain, requiring an external pull-up resistor for proper high-level output.
- Q: What is the voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for 5V logic systems.
- Q: What is the package type?
- A: It is available in a 20-VFQFN Exposed Pad package, which offers excellent thermal performance.
SN74ACT7541RKSR.pdf
- Q: What is the logic family of the SN74ACT7541RKSR?
- A: It belongs to the 74ACT family, which is known for high-speed, 5V operation with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is a single-channel, non-inverting buffer with an open-drain output.
- Q: How many channels does it have?
- A: It has 1 channel, providing a single buffer in a 20-VFQFN package.
- Q: What is the output type?
- A: The output is open-drain, requiring an external pull-up resistor for proper high-level output.
- Q: What is the voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for 5V logic systems.
- Q: What is the package type?
- A: It is available in a 20-VFQFN Exposed Pad package, which offers excellent thermal performance.