ON Semiconductor MM74HCT574SJ Octal D-Type Flip-Flop with 3-State Outputs

The MM74HCT574SJ from ON Semiconductor is a high-performance CMOS octal flip-flop with clear and 3-state outputs, designed for use in applications requiring the capture and storage of data. This integrated circuit is part of the HCT family, which is compatible with low-power Schottky TTL (LSTTL), ensuring seamless integration into mixed-technology systems.

Each flip-flop has individual clear and clock inputs, as well as a Q output. The device comes in a surface-mount package, specifically an SOIC-20 (SJ) package, which is suitable for automated assembly processes and space-constrained applications. The MM74HCT574SJ operates with a supply voltage range of 4.5V to 5.5V, making it ideal for 5V systems.

The 3-state outputs allow for connection to a bus-organized system without the need for external pull-up resistors. This feature is particularly useful for bus interfacing in multi-master systems, as it enables the outputs to be disabled to allow other devices to drive the bus without interference.

The MM74HCT574SJ is characterized for operation from -40°C to +85°C, ensuring reliable performance across a wide range of environmental conditions. Its fast propagation delay and transition times make it an excellent choice for high-speed data storage and transfer applications.

Key features of the MM74HCT574SJ include:

• Octal D-type flip-flops with clear
• 3-State outputs for bus interfacing
• Compatible with LSTTL outputs
• Wide operating voltage range of 4.5V to 5.5V
• Direct LSTTL input logic compatibility, VIL=0.8V (Max), VIH=2V (Min)
• CMOS input compatibility, Il≤1µA at VOL, VOH
• SOIC-20 package for space-saving applications
• Operating temperature range: -40°C to +85°C

With its robust design and versatile features, the MM74HCT574SJ is a reliable and efficient solution for designers looking to implement flip-flops with high drive capability and the added benefit of 3-state outputs. Whether used in computers, data storage, or complex control systems, this component from ON Semiconductor ensures data integrity and system stability.