Overview
The MC74HC574ADTR2G is a high-performance silicon-gate CMOS octal 3-state noninverting D flip-flop manufactured by onsemi. This device is identical in pinout to the LS574 and is designed to facilitate easy integration into various digital circuits. The inputs of the MC74HC574A are compatible with standard CMOS outputs, and with pull-up resistors, they can also interface with LSTTL outputs. The device features a rising edge clocked data transfer mechanism, where data meeting the setup time is clocked to the outputs on the rising edge of the clock. The Output Enable input allows the outputs to be forced into a high-impedance state, enabling data storage even when the outputs are not enabled.
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 (50% Duty Cycle) | Up to 35 MHz | MHz |
| Maximum Propagation Delay, Clock to Q | Up to 200 ns | ns |
| Maximum Propagation Delay, Output Enable to Q | Up to 240 ns | ns |
| Input Current | 1.0 μA | μA |
| Output Drive Capability | 15 LSTTL Loads | |
| Storage Temperature Range | −65 to +150 | °C |
| Junction Temperature Under Bias | +150 | °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 Packages are Available and RoHS Compliant
- AEC-Q100 Qualified and PPAP Capable for automotive and other applications requiring unique site and control change requirements
Applications
The MC74HC574ADTR2G is versatile and can be used in a variety of digital circuit applications, including:
- Bus Interface Circuits: The device's 3-state outputs make it suitable for bus-oriented systems.
- Memory Address Decoding: Its ability to handle multiple inputs and outputs efficiently makes it useful in memory address decoding circuits.
- Level Conversion: The MC74HCT574A version can be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs.
- Automotive Systems: AEC-Q100 qualification and PPAP capability make it suitable for automotive applications.
Q & A
- What is the operating voltage range of the MC74HC574ADTR2G?
The operating voltage range is from 2.0 to 6.0 V.
- What is the maximum clock frequency of the MC74HC574ADTR2G?
The maximum clock frequency is up to 35 MHz.
- What is the output drive capability of the MC74HC574ADTR2G?
The output drive capability is 15 LSTTL loads.
- Is the MC74HC574ADTR2G compatible with TTL outputs?
Yes, with pull-up resistors, the inputs are compatible with LSTTL outputs.
- What is the storage temperature range of the MC74HC574ADTR2G?
The storage temperature range is from −65 to +150°C.
- Is the MC74HC574ADTR2G RoHS compliant?
Yes, the device is Pb-Free and RoHS compliant.
- What is the junction temperature under bias for the MC74HC574ADTR2G?
The junction temperature under bias is +150°C.
- Can the MC74HC574ADTR2G be used in automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements.
- What is the package type of the MC74HC574ADTR2G?
The device is available in TSSOP-20 packages.
- How many flip-flops are included in the MC74HC574ADTR2G?
The device includes eight D-type flip-flops).
