STMicroelectronics

M74HC73B1R  

Flip Flops

M74HC73B1R Description

The M74HC73B1R is a dual JK-type flip-flop designed for high-speed synchronous operation, manufactured by STMicroelectronics. This logic IC chip is part of the 74HC series and is housed in a through-hole 14DIP package. It features a clock frequency of up to 80 MHz, making it suitable for high-speed digital applications. The device operates within a supply voltage range of 2V to 6V, ensuring compatibility with various power supply configurations. Each flip-flop element has a single bit of storage, and the output type is complementary, providing both true and complement outputs.

M74HC73B1R Features

• High-Speed Operation: With a maximum clock frequency of 80 MHz, the M74HC73B1R ensures rapid data processing and synchronization.
• Low Power Consumption: The device has a quiescent current of only 2 µA, making it energy-efficient and suitable for low-power applications.
• Complementary Outputs: The complementary output type allows for versatile signal handling and the ability to drive both true and complement signals.
• Negative Edge Triggering: The flip-flops are triggered on the negative edge of the clock signal, providing precise timing control.
• Wide Operating Voltage Range: The 2V to 6V supply voltage range offers flexibility in power supply design.
• High Output Current Capability: The device can source and sink up to 5.2 mA, ensuring robust signal drive capabilities.
• Low Input Capacitance: With an input capacitance of 5 pF, the M74HC73B1R minimizes signal propagation delays and ensures high-speed operation.
• Compliance and Reliability: The M74HC73B1R is REACH unaffected and RoHS3 compliant, ensuring environmental and safety standards are met. It also has a moisture sensitivity level (MSL) of 1, indicating unlimited storage conditions.
• Propagation Delay: The maximum propagation delay is 21 ns at 6V and 50 pF, ensuring fast signal transitions and minimal latency.

M74HC73B1R Applications

The M74HC73B1R is ideal for a variety of digital applications requiring high-speed, reliable data storage and processing. Specific use cases include:

• Digital Counters: The dual JK flip-flops can be used to build synchronous counters for timing and sequencing applications.
• Frequency Dividers: The device can be configured to divide input frequencies, useful in clock generation and signal conditioning.
• Data Storage and Latching: The flip-flops can store and latch data bits, making them suitable for data buffering and temporary storage in digital systems.
• Control Logic: The M74HC73B1R can be used in control logic circuits to manage the flow of data and control signals in complex digital systems.
• Synchronization Circuits: The negative edge triggering and complementary outputs make this device suitable for synchronizing signals in high-speed digital circuits.

Conclusion of M74HC73B1R

The M74HC73B1R from STMicroelectronics is a versatile and high-performance dual JK-type flip-flop designed for a wide range of digital applications. Its high-speed operation, low power consumption, and wide operating voltage range make it an excellent choice for modern digital systems. The complementary outputs and negative edge triggering provide precise control and signal handling capabilities. Despite being marked as obsolete, the M74HC73B1R remains a reliable and efficient solution for applications requiring dual flip-flops with high-speed and low-power characteristics.

M74HC73B1R Documents

Download datasheets and manufacturer documentation for M74HC73B1R