Overview
The 74HC73D is a dual negative-edge triggered JK flip-flop integrated circuit produced by Nexperia (formerly part of NXP USA Inc.). This component features individual J, K, clock (nCP), and reset (nR) inputs, along with complementary nQ and nQ outputs. It is designed to operate within a wide voltage range and is known for its low power consumption and high noise immunity.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| VCC | 2.0 - 6.0 | V | |
| Logic Switching Levels | CMOS | ||
| Output Drive Capability | ± 5.2 | mA | |
| Propagation Delay (tpd) | 16 | ns | CL = 50 pF |
| Maximum Clock Frequency (fmax) | 77 | MHz | |
| Operating Temperature Range | -40°C to +125°C | °C | |
| Power Dissipation | Low | ||
| Package Type | SO14 (SOT108-1) |
Key Features
- Dual negative-edge triggered JK flip-flop with individual J, K, clock (nCP), and reset (nR) inputs.
- Complementary nQ and nQ outputs.
- Asynchronous reset; when nR is LOW, it overrides the clock and data inputs, forcing the nQ output LOW and the nQ output HIGH.
- Schmitt-trigger action in the clock input for improved noise immunity and tolerance to slower clock rise and fall times.
- Inputs include clamp diodes, enabling the use of current limiting resistors to interface inputs to voltages in excess of VCC.
- Low power consumption; CMOS low-power dissipation.
- High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5 V.
- Wide operating temperature range: -40°C to +125°C.
Applications
The 74HC73D is versatile and can be used in a variety of applications across different industries, including:
- Automotive systems: For reliable and low-power logic functions.
- Industrial control systems: Where robust and noise-immune logic circuits are required.
- Consumer electronics: In devices that need efficient and low-power flip-flop logic.
- Computing and data processing: For clocked logic circuits in digital systems.
- Mobile and wearable devices: Due to its low power consumption and compact package.
Q & A
- What is the 74HC73D?
The 74HC73D is a dual negative-edge triggered JK flip-flop integrated circuit.
- What are the key inputs and outputs of the 74HC73D?
The 74HC73D has individual J, K, clock (nCP), and reset (nR) inputs, along with complementary nQ and nQ outputs.
- What is the voltage range for the 74HC73D?
The 74HC73D operates within a voltage range of 2.0 to 6.0 volts.
- What is the maximum clock frequency of the 74HC73D?
The maximum clock frequency is 77 MHz.
- What is the propagation delay of the 74HC73D?
The propagation delay is approximately 16 ns with a load capacitance of 50 pF.
- Does the 74HC73D have any special features for noise immunity?
Yes, it features Schmitt-trigger action in the clock input for improved noise immunity.
- What is the operating temperature range of the 74HC73D?
The operating temperature range is -40°C to +125°C.
- What type of package does the 74HC73D come in?
The 74HC73D comes in an SO14 (SOT108-1) package.
- Is the reset input synchronous or asynchronous?
The reset input is asynchronous.
- What are some typical applications of the 74HC73D?
It is used in automotive, industrial, consumer electronics, computing, and mobile devices.
