Overview
The MC74AC541DTR2G is an octal buffer/line driver produced by onsemi. This device is part of the MC74AC541/74ACT541 series, which are designed to be used as memory and address drivers, clock drivers, and bus-oriented transmitter/receivers. The MC74AC541 is a noninverting option of the MC74AC540, providing complementary functionality. These devices are particularly useful for their flow-through architecture, where inputs and outputs are located on opposite sides of the package, facilitating easier interface with microprocessors and enhancing PC board density.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| VCC (DC Supply Voltage) | −0.5 to +6.5 | V | Referenced to GND |
| VIN (DC Input Voltage) | −0.5 to VCC + 0.5 | V | Referenced to GND |
| VOUT (DC Output Voltage) | −0.5 to VCC + 0.5 | V | Referenced to GND |
| IIK (DC Input Diode Current) | ±20 | mA | |
| IOK (DC Output Diode Current) | ±50 | mA | |
| IOUT (DC Output Sink/Source Current) | ±50 | mA | |
| ICC (DC Supply Current, per Output Pin) | ±50 | mA | |
| TSTG (Storage Temperature Range) | −65 to +150 | °C | |
| TL (Lead temperature, 1 mm from Case for 10 Seconds) | 260 | °C | |
| TJ (Junction Temperature Under Bias) | 140 | °C | |
| VIH (Minimum High Level Input Voltage) | 3.0 to 5.5 | V | VCC = 3.0 to 5.5 V |
| VIL (Maximum Low Level Input Voltage) | 0.9 to 1.65 | V | VCC = 3.0 to 5.5 V |
| VOH (Minimum High Level Output Voltage) | 2.9 to 5.4 | V | IOUT = −50 μA |
| tPLH (Propagation Delay Data to Output) | 5.0 to 8.5 | ns | TA = −40°C to +85°C, CL = 50 pF |
| tPHL (Propagation Delay Data to Output) | 5.0 to 8.5 | ns | TA = −40°C to +85°C, CL = 50 pF |
Key Features
- 3-State Outputs: Allows for high impedance state, which is useful in bus applications.
- Flow-Through Architecture: Inputs and outputs are on opposite sides of the package, facilitating easier interface with microprocessors and enhancing PC board density.
- Outputs Source/Sink 24 mA: Capable of driving moderate loads.
- Noninverting Outputs: The MC74AC541 provides noninverted outputs, making it suitable for applications where signal inversion is not required.
- TTL Compatible Inputs: The ACT series has TTL compatible inputs, ensuring compatibility with TTL logic levels.
- Pb-Free Packages: Available in lead-free packages, making them environmentally friendly and compliant with RoHS regulations.
Applications
- Memory and Address Drivers: Suitable for driving memory and address lines in digital systems.
- Clock Drivers: Can be used to distribute clock signals across the system.
- Bus Oriented Transmitter/Receivers: Ideal for bus applications where multiple devices need to communicate.
- Microprocessor Output Ports: The flow-through architecture makes these devices useful as output ports for microprocessors, enhancing layout ease and board density.
Q & A
- What is the primary function of the MC74AC541DTR2G?
The MC74AC541DTR2G is an octal buffer/line driver designed for use as memory and address drivers, clock drivers, and bus-oriented transmitter/receivers.
- What is the difference between MC74AC541 and MC74AC540?
The MC74AC541 provides noninverted outputs, while the MC74AC540 provides inverted outputs.
- What is the significance of the flow-through architecture in the MC74AC541?
The flow-through architecture, where inputs and outputs are on opposite sides of the package, facilitates easier interface with microprocessors and enhances PC board density.
- What are the output current capabilities of the MC74AC541?
The outputs can source or sink up to 24 mA.
- Are the MC74AC541 devices TTL compatible?
Yes, the ACT series of these devices has TTL compatible inputs.
- What is the operating voltage range for the MC74AC541?
The operating voltage range is from 2 V to 6 V.
- What are the package options available for the MC74AC541DTR2G?
The device is available in TSSOP-20 packages.
- What is the storage temperature range for the MC74AC541?
The storage temperature range is from −65°C to +150°C.
- Are the MC74AC541 devices lead-free?
Yes, Pb-free packages are available, making them compliant with RoHS regulations.
- What are the typical propagation delays for the MC74AC541?
The typical propagation delays range from 5.0 ns to 8.5 ns for data to output.
