Overview
The 74HC73D, produced by NXP USA Inc. (now part of Nexperia), is a dual negative edge triggered JK flip-flop integrated circuit. This component features individual J, K, clock (nCP), and reset (nR) inputs, along with complementary nQ and nQ outputs. The JK flip-flop is a fundamental component in digital logic circuits, used for storing and shifting binary data.
The 74HC73D is part of the 74HC series, known for its CMOS low-power dissipation and wide supply voltage range from 2.0 to 6.0 V. This makes it versatile for various applications across different industries.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2.0 | - | 6.0 | V |
| Output Drive Capability | - | - | ± 5.2 | mA |
| tpd (Propagation Delay) | - | 16 | - | ns |
| fmax (Maximum Frequency) | - | 77 | - | MHz |
| Power Dissipation | - | - | Low | - |
| Tamb (Ambient Temperature) | -40 | - | 125 | °C |
| ESD Protection | - | - | HBM: >2000 V, CDM: >1000 V | - |
| Package | - | - | SO14 (SOT108-1) | - |
Key Features
- CMOS Low-Power Dissipation: The 74HC73D has low power consumption, making it energy-efficient.
- Wide Supply Voltage Range: Operates from 2.0 to 6.0 V, providing flexibility in various applications.
- High Noise Immunity: Features Schmitt-trigger action in the clock input, making it tolerant to slower clock rise and fall times.
- ESD Protection: Complies with HBM (Human Body Model) and CDM (Charged Device Model) standards, exceeding 2000 V and 1000 V respectively.
- Compliance with JEDEC Standards: Meets JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
- Asynchronous Reset: The reset input (nR) overrides the clock and data inputs when LOW, forcing the nQ output LOW and the nQ output HIGH.
- Input Clamp Diodes: Allows the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Applications
The 74HC73D is widely used in various digital logic circuits and applications, including:
- Automotive Systems: For storing and shifting binary data in automotive control systems.
- Industrial Control Systems: In industrial automation and control systems where reliable and low-power flip-flops are required.
- Consumer Electronics: In consumer devices such as calculators, digital clocks, and other electronic gadgets.
- Computing and Data Storage: In computer systems for data storage and retrieval.
- Communication Systems: In communication devices for data transmission and reception.
Q & A
- What is the 74HC73D?
The 74HC73D is a dual negative edge triggered JK flip-flop integrated circuit.
- What is the supply voltage range of the 74HC73D?
The supply voltage range is from 2.0 to 6.0 V.
- What is the maximum frequency of operation for the 74HC73D?
The maximum frequency is up to 77 MHz.
- Does the 74HC73D have ESD protection?
Yes, it complies with HBM and CDM standards, exceeding 2000 V and 1000 V respectively.
- What type of reset does the 74HC73D have?
The 74HC73D has an asynchronous reset input (nR).
- What is the package type of the 74HC73D?
The package type is SO14 (SOT108-1).
- Is the 74HC73D RoHS compliant?
Yes, it is RoHS compliant.
- What are the key benefits of using the 74HC73D?
Key benefits include low power dissipation, high noise immunity, and wide supply voltage range.
- Can the 74HC73D be used in high-temperature environments?
Yes, it operates from -40 °C to +125 °C.
- How does the Schmitt-trigger action in the clock input benefit the 74HC73D?
The Schmitt-trigger action makes the circuit highly tolerant to slower clock rise and fall times.
