Texas Instruments

CD74HCT109E

CD74HCT109E Description

The CD74HCT109E is a dual JK-type flip-flop designed by Texas Instruments, offering high performance and reliability in digital circuits. This IC features two independent JK flip-flops, each capable of storing one bit of data. It operates within a supply voltage range of 4.5V to 5.5V and is optimized for a clock frequency of up to 54 MHz, making it suitable for high-speed applications. The flip-flops are triggered on the positive edge of the clock signal, ensuring precise timing control.

The CD74HCT109E provides complementary outputs, which can be advantageous for applications requiring both true and complement signals. It also supports set (preset) and reset functions, allowing for flexible control over the state of the flip-flops. The device exhibits a low quiescent current of 4 µA, contributing to energy efficiency, and offers a maximum propagation delay of 40ns at 4.5V with a maximum load capacitance of 50pF.

CD74HCT109E Features

• High-Speed Operation: With a clock frequency of up to 54 MHz, the CD74HCT109E is well-suited for applications requiring fast data processing.
• Complementary Outputs: The provision of both true and complement outputs enhances the versatility of the device in various digital circuits.
• Positive Edge Triggering: Ensures precise timing control, making it ideal for synchronous digital systems.
• Low Power Consumption: A quiescent current of only 4 µA minimizes power usage, making it suitable for battery-powered and low-power applications.
• Set and Reset Functions: Provides additional control over the state of the flip-flops, enhancing flexibility in digital circuit design.
• Wide Operating Voltage Range: Operates reliably within a supply voltage range of 4.5V to 5.5V, offering compatibility with a variety of power supply configurations.
• Compliance and Reliability: The CD74HCT109E is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance. It also features a moisture sensitivity level (MSL) that is not applicable, indicating robustness against moisture-related issues.

CD74HCT109E Applications

The CD74HCT109E is ideal for a wide range of applications due to its high-speed operation, low power consumption, and versatile control features. Some specific use cases include:

• Digital Counters and Registers: The dual JK flip-flops can be used to build counters and registers, essential components in digital systems for counting and storing data.
• Synchronous Control Circuits: The positive edge triggering and complementary outputs make it suitable for synchronous control applications where precise timing is critical.
• Data Storage and Transfer: The ability to store and transfer one bit of data per flip-flop makes it useful in data storage and transfer circuits.
• Frequency Division and Signal Processing: The JK flip-flops can be employed in frequency division and signal processing applications, where they can manipulate and process digital signals efficiently.
• Low-Power Embedded Systems: The low quiescent current and wide operating voltage range make it a suitable choice for low-power embedded systems and battery-operated devices.

Conclusion of CD74HCT109E

The CD74HCT109E from Texas Instruments is a high-performance dual JK-type flip-flop that offers a combination of speed, versatility, and low power consumption. Its complementary outputs, positive edge triggering, and set/reset functions provide enhanced control and flexibility in digital circuit design. With a wide operating voltage range and compliance with environmental regulations, the CD74HCT109E is a reliable choice for a variety of applications, including digital counters, synchronous control circuits, and low-power embedded systems. Its robustness and efficiency make it a standout option in the flip-flop market, offering significant advantages over similar models.