Overview
The MC74AC573DWG, produced by onsemi, is a high-speed octal buffer/line driver with 3-state outputs. This component is part of the MC74AC573/74ACT573 series and is designed to provide efficient data transfer and storage in digital systems. It features eight D-type latches with buffered common Latch Enable (LE) and Output Enable (OE) inputs, making it suitable for various microprocessor applications.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| VCC (DC Supply Voltage) | −0.5 to +7.0 | 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 |
| VIH (Minimum High Level Input Voltage) | 2.1 (at VCC = 3.0V), 3.15 (at VCC = 5.5V) | V | VOUT = 0.1V or VCC - 0.1V |
| VIL (Maximum Low Level Input Voltage) | 0.9 (at VCC = 3.0V), 1.35 (at VCC = 5.5V) | V | VOUT = 0.1V or VCC - 0.1V |
| VOH (Minimum High Level Output Voltage) | 2.9 (at VCC = 3.0V), 5.4 (at VCC = 5.5V) | V | IOUT = −50 μA |
| VOL (Maximum Low Level Output Voltage) | 0.1 (at VCC = 3.0V to 5.5V) | V | IOUT = 50 μA |
| tPLH (Propagation Delay Dn to On) | 2.5 to 12 ns | ns | TA = −40°C to +85°C, CL = 50 pF |
| tPHL (Propagation Delay Dn to On) | 2.5 to 12 ns | ns | TA = −40°C to +85°C, CL = 50 pF |
| ts (Setup Time, HIGH or LOW Dn to LE) | 3.0 to 4.0 ns | ns | TA = −40°C to +85°C, CL = 50 pF |
| th (Hold Time, HIGH or LOW Dn to LE) | 2.0 ns | ns | TA = −40°C to +85°C, CL = 50 pF |
| tw (LE Pulse Width, HIGH) | 4.0 to 7.0 ns | ns | TA = −40°C to +85°C, CL = 50 pF |
Key Features
- Inputs and Outputs on Opposite Sides of Package: Allows easy interface with microprocessors.
- Useful as Input or Output Port for Microprocessors: Versatile in various microprocessor applications.
- Functionally Identical to MC74AC373/74ACT373: Except for the pinouts, making it compatible with existing designs.
- 3-State Outputs for Bus Interfacing: Enables efficient bus-oriented applications.
- Outputs Source/Sink 24 mA: High current drive capability.
- Pb-Free Devices: Compliant with environmental regulations.
- TTL Compatible Inputs (for 74ACT573): Ensures compatibility with TTL logic systems.
Applications
- Microprocessor Input/Output Ports: Ideal for interfacing with microprocessors due to its pinout configuration.
- Bus-Oriented Systems: The 3-state outputs make it suitable for bus interfacing and data transfer in complex digital systems.
- High-Speed Digital Systems: Used in applications requiring fast data transfer and storage, such as in high-speed digital circuits.
- Embedded Systems: Useful in embedded systems where efficient data handling and storage are critical.
Q & A
- What is the MC74AC573DWG? The MC74AC573DWG is a high-speed octal buffer/line driver with 3-state outputs produced by onsemi.
- What are the key features of the MC74AC573DWG? It includes inputs and outputs on opposite sides of the package, 3-state outputs, and is functionally identical to the MC74AC373/74ACT373 except for pinouts.
- What is the maximum DC supply voltage for the MC74AC573DWG? The maximum DC supply voltage is 7.0V.
- What is the propagation delay for the MC74AC573DWG? The propagation delay ranges from 2.5 to 12 ns depending on the conditions.
- Can the MC74AC573DWG be used in high-speed digital systems? Yes, it is designed for high-speed digital systems due to its fast data transfer and storage capabilities.
- Is the MC74AC573DWG Pb-free? Yes, the MC74AC573DWG is a Pb-free device, making it compliant with environmental regulations.
- What is the output current drive capability of the MC74AC573DWG? The outputs can source or sink up to 24 mA.
- How does the Latch Enable (LE) input work on the MC74AC573DWG? When the LE input is HIGH, data on the D inputs enters the latches. When LE is LOW, the latches store the information present on the D inputs before the HIGH-to-LOW transition of LE.
- What is the function of the Output Enable (OE) input on the MC74AC573DWG? The OE input controls the 3-state buffers. When OE is LOW, the buffers are enabled, and when OE is HIGH, the buffers are in the high impedance mode.
- Can the MC74AC573DWG be used as an input or output port for microprocessors? Yes, it is designed to be useful as both an input or output port for microprocessors due to its pinout configuration.
