Overview
The MC74HC574ADWR2, produced by onsemi, is a high-performance Silicon-Gate CMOS octal 3-state noninverting D flip-flop. This device is identical in pinout to the LS574 and is designed to facilitate easy PC board layout by having the flip-flop inputs on the opposite side of the package from the outputs. It is part of the HC series, known for its compatibility with standard CMOS outputs and, with pull-up resistors, compatibility with LSTTL outputs. The MC74HC574A is also capable of acting as a level converter for interfacing TTL or NMOS outputs to high-speed CMOS inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 2.0 to 6.0 | V |
| DC Input Voltage (VIN) | −0.5 to VCC + 0.5 | V |
| DC Output Voltage (VOUT) | −0.5 to VCC + 0.5 | V |
| Maximum Clock Frequency | 6.0 to 35 MHz (depending on VCC) | MHz |
| Propagation Delay, Clock to Q | 27 to 160 ns (depending on VCC) | ns |
| Input Current | 1.0 μA | μA |
| Output Drive Capability | 15 LSTTL Loads | |
| Operating Temperature Range | −55 to +125 °C | °C |
| Storage Temperature Range | −65 to +150 °C | °C |
Key Features
- Output Drive Capability: 15 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V
- Low Input Current: 1.0 μA
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Chip Complexity: 286 FETs or 71.5 Equivalent Gates
- Pb-Free and RoHS Compliant
- AEC-Q100 Qualified and PPAP Capable for automotive and other applications requiring unique site and control change requirements
Applications
The MC74HC574ADWR2 is versatile and can be used in a variety of applications, including:
- Digital Logic Circuits: As an octal 3-state noninverting D flip-flop, it is suitable for storing and transferring data in digital systems.
- Level Conversion: It can act as a level converter for interfacing TTL or NMOS outputs to high-speed CMOS inputs.
- Automotive Systems: With its AEC-Q100 qualification, it is suitable for use in automotive applications.
- General Purpose Logic: In any application requiring high-performance CMOS logic with 3-state outputs.
Q & A
- What is the operating voltage range of the MC74HC574ADWR2?
The operating voltage range is 2.0 to 6.0 V.
- What is the maximum clock frequency for the MC74HC574ADWR2?
The maximum clock frequency ranges from 6.0 to 35 MHz, depending on the supply voltage (VCC).
- What is the output drive capability of the MC74HC574ADWR2?
The output drive capability is 15 LSTTL loads.
- Is the MC74HC574ADWR2 compatible with other logic families?
- What is the input current of the MC74HC574ADWR2?
The input current is 1.0 μA.
- Is the MC74HC574ADWR2 RoHS compliant?
- What is the storage temperature range for the MC74HC574ADWR2?
The storage temperature range is −65 to +150 °C.
- Can the MC74HC574ADWR2 be used in automotive applications?
- What is the propagation delay from clock to Q for the MC74HC574ADWR2?
The propagation delay from clock to Q ranges from 27 to 160 ns, depending on the supply voltage (VCC).
- How should unused inputs be handled on the MC74HC574ADWR2?
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC).
