Overview
The MC74AC574DTR2G, produced by Onsemi, is a high-speed, low power octal D-type flip-flop with a buffered common Clock (CP) and a buffered common Output Enable (OE). This component is designed to store the state of its individual D inputs on the LOW-to-HIGH Clock (CP) transition. It is functionally identical to the MC74AC374/74ACT374, except for the pinouts, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| VCC (DC Supply Voltage) | −0.5 to +6.5 | V | Referenced to GND |
| Operating Ambient Temperature Range | −40 to 85 | °C | |
| IOH (Output Current - High) | −24 | mA | |
| IOL (Output Current - Low) | 24 | mA | |
| fmax (Maximum Clock Frequency) | 75 (3.3V), 100 (5.0V) | MHz | CL = 50 pF |
| tPLH (Propagation Delay CP to On) | 3.5 (3.3V), 2.5 (5.0V) | ns | CL = 50 pF |
| tPZH (Output Enable Time) | 2.5 (3.3V), 2.0 (5.0V) | ns | CL = 50 pF |
| tPHZ (Output Disable Time) | 4.0 (3.3V), 2.0 (5.0V) | ns | CL = 50 pF |
| ts (Setup Time, HIGH or LOW Dn to CP) | 2.5 (3.3V), 1.5 (5.0V) | ns | |
| th (Hold Time, HIGH or LOW Dn to CP) | 1.5 (3.3V), 1.0 (5.0V) | ns |
Key Features
- Inputs and Outputs on Opposite Sides of Package Allowing Easy Interface with Microprocessors
- Useful as Input or Output Port for Microprocessors
- Functionally Identical to MC74AC374/74ACT374
- 3-State Outputs for Bus-Oriented Applications
- Outputs Source/Sink 24 mA
- ACT574 Has TTL Compatible Inputs
- Pb-Free Packages are Available
Applications
The MC74AC574DTR2G is suitable for a variety of applications, including:
- Bus-oriented systems where 3-state outputs are necessary
- Microprocessor input/output ports
- High-speed digital circuits requiring low power consumption
- Systems requiring edge-triggered flip-flops with buffered clock and output enable
Q & A
- What is the MC74AC574DTR2G?
The MC74AC574DTR2G is a high-speed, low power octal D-type flip-flop with a buffered common Clock (CP) and a buffered common Output Enable (OE).
- What is the operating voltage range of the MC74AC574DTR2G?
The operating voltage range is from −0.5 to +6.5 V.
- What is the maximum clock frequency of the MC74AC574DTR2G?
The maximum clock frequency is 75 MHz at 3.3V and 100 MHz at 5.0V.
- What is the propagation delay from CP to On?
The propagation delay is 3.5 ns at 3.3V and 2.5 ns at 5.0V.
- Does the MC74AC574DTR2G have TTL compatible inputs?
- What is the output current capability of the MC74AC574DTR2G?
The outputs can source/sink up to 24 mA.
- What are the key features of the MC74AC574DTR2G?
Key features include inputs and outputs on opposite sides of the package, 3-state outputs, and Pb-free packages.
- What are the typical applications of the MC74AC574DTR2G?
Typical applications include bus-oriented systems, microprocessor input/output ports, and high-speed digital circuits.
- What is the setup and hold time for the D inputs relative to the clock pulse?
The setup time is 2.5 ns at 3.3V and 1.5 ns at 5.0V, and the hold time is 1.5 ns at 3.3V and 1.0 ns at 5.0V.
- Is the MC74AC574DTR2G available in Pb-free packages?
