onsemi 74AC541SC
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.78 | $1.78 |
| 15+ | $1.72 | $25.80 |
| 25+ | $1.68 | $42.00 |
| 50+ | $1.59 | $79.50 |
| 100+ | $1.40 | $140.00 |
| N+ | $0.28 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74AC |
| Packaging | Factory | Tube |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC |
| ROHS |
The 74AC541SC from onsemi is a high-speed, non-inverting octal buffer designed for bus-oriented applications. Operating from 2V to 6V, it provides 3-State outputs that can source or sink 24mA, making it suitable for driving bus lines, LEDs, or other logic inputs. Its 74AC logic family ensures low power consumption while maintaining high switching speeds. The 20-SOIC package is ideal for space-constrained PCBs. Typical applications include memory buffering, signal conditioning, and level translation in mixed-voltage systems.
- Wide 2V to 6V Supply Range: Compatible with both 3.3V and 5V systems, simplifying design and reducing power supply complexity.
- High Output Current (24mA): Can directly drive LEDs, relays, or multiple logic inputs, eliminating extra driver components.
- 3-State Outputs: Enable bus sharing and prevent data contention in multi-device systems.
- High-Speed 74AC Logic: Provides fast propagation delays, suitable for high-frequency signal buffering.
Bus Interfacing for Microcontrollers
Use the 74AC541SC to buffer address or data lines between a microcontroller and memory/peripherals. The 3-State outputs allow the bus to be released when not in use, preventing contention.
Signal Buffering for High-Speed Digital Lines
With 74AC logic, this buffer provides fast propagation delays, making it ideal for buffering high-frequency clock or data signals without significant skew.
Level Shifting Between 3.3V and 5V Logic
Operating from 2V to 6V, the 74AC541SC can be powered at 5V to accept 3.3V inputs (with proper thresholds) or at 3.3V to interface with 5V-tolerant systems, simplifying mixed-voltage designs.
Driving LED Arrays or Relays
The 24mA sink/source capability allows direct driving of LEDs or small relays with external resistors, reducing the need for additional driver ICs.
Industrial Control Input/Output Modules
In PLCs or industrial controllers, this buffer can isolate and condition digital signals from sensors or switches, ensuring clean logic levels for the control unit.
Memory Address Decoding
Use the buffer to fan out address signals to multiple memory banks, ensuring signal integrity and preventing loading effects on the source.
- Q: What logic family does the 74AC541SC belong to?
- A: It belongs to the 74AC (Advanced CMOS) logic family, offering high speed and low power consumption.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 8 channels (1 channel per bit) and 3-State outputs for bus-oriented applications.
- Q: What is the operating voltage range?
- A: The 74AC541SC operates from 2V to 6V, making it compatible with 3.3V and 5V systems.
- Q: What is the output type?
- A: The outputs are 3-State, allowing multiple devices to share a bus without contention.
- Q: What package is available?
- A: It comes in a 20-SOIC (0.295", 7.50mm Width) package, suitable for surface-mount PCBs.
- Q: What is the output current capability?
- A: It can source and sink 24mA, suitable for driving moderate loads.
- Q: What logic family does the 74AC541SC belong to?
- A: It belongs to the 74AC (Advanced CMOS) logic family, offering high speed and low power consumption.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 8 channels (1 channel per bit) and 3-State outputs for bus-oriented applications.
- Q: What is the operating voltage range?
- A: The 74AC541SC operates from 2V to 6V, making it compatible with 3.3V and 5V systems.
- Q: What is the output type?
- A: The outputs are 3-State, allowing multiple devices to share a bus without contention.
- Q: What package is available?
- A: It comes in a 20-SOIC (0.295", 7.50mm Width) package, suitable for surface-mount PCBs.
- Q: What is the output current capability?
- A: It can source and sink 24mA, suitable for driving moderate loads.

74AC541SC.pdf