Overview
The 74HC74D,653 is a dual D-type flip-flop integrated circuit produced by Nexperia USA Inc. This component is part of the 74HC and 74HCT family, known for their high-speed CMOS logic. The 74HC74D is specifically designed for positive edge-triggered operations, making it suitable for a wide range of digital circuit applications.
The device features individual data, clock, set, and reset inputs, along with complementary outputs. This flexibility and the inclusion of Schmitt-trigger action in the clock input enhance the circuit's tolerance to slower clock rise and fall times, ensuring reliable operation in various environments.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Type Number | 74HC74D | Part number designation |
| Orderable Part Number | 74HC74D,653 | Specific part number for ordering |
| Package | SO14 (SOT108-1) | 14-pin Small Outline Integrated Circuit package |
| Operating Voltage | 2V to 6V | Range of supply voltages the device can operate with |
| Maximum Clock Frequency | 82 MHz | Maximum frequency at which the clock input can operate |
| Input Levels | CMOS level | Type of logic levels the inputs are compatible with |
| ESD Protection | HBM: >2000 V, CDM: >1000 V | Electrostatic discharge protection levels |
| Operating Temperature | -40 °C to +85 °C (or +125 °C) | Temperature range over which the device is specified to operate |
Key Features
- Positive Edge-Triggered: The flip-flops are triggered on the positive edge of the clock signal.
- Individual Inputs: Each flip-flop has individual data (nD), clock (nCP), set (nSD), and reset (nRD) inputs.
- Complementary Outputs: The device provides complementary nQ and nQ outputs.
- Schmitt-Trigger Action: The clock input features Schmitt-trigger action, enhancing tolerance to slower clock rise and fall times.
- Input Clamp Diodes: Inputs include clamp diodes to enable the use of current limiting resistors for interfacing with voltages in excess of VCC.
- High Noise Immunity: The device offers high noise immunity due to its CMOS technology.
- Balanced Propagation Delays: Symmetrical output impedance and balanced propagation delays ensure consistent performance.
- ESD Protection: High levels of electrostatic discharge protection (HBM > 2000 V, CDM > 1000 V).
Applications
The 74HC74D,653 is versatile and can be used in a variety of digital circuit applications across different industries, including:
- Automotive: For control and monitoring systems in vehicles.
- Industrial: In automation, control systems, and industrial electronics.
- Consumer Electronics: In devices such as TVs, audio equipment, and other consumer electronics.
- Computing: In computer peripherals and other computing hardware.
- Mobile and Wearables: In mobile devices and wearable technology.
Q & A
- What is the 74HC74D,653 used for?
The 74HC74D,653 is a dual D-type flip-flop integrated circuit used in various digital circuit applications for storing and transferring data.
- What is the maximum clock frequency of the 74HC74D,653?
The maximum clock frequency is 82 MHz.
- What type of input levels does the 74HC74D support?
The 74HC74D supports CMOS level inputs.
- What is the operating voltage range of the 74HC74D,653?
The operating voltage range is from 2V to 6V.
- What kind of ESD protection does the 74HC74D,653 have?
The device has ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).
- What is the package type of the 74HC74D,653?
The package type is SO14 (SOT108-1).
- What are the key features of the Schmitt-trigger action in the clock input?
The Schmitt-trigger action enhances tolerance to slower clock rise and fall times.
- What are the typical applications of the 74HC74D,653?
It is used in automotive, industrial, consumer electronics, computing, and mobile/wearable devices.
- How does the device handle noise immunity?
The device offers high noise immunity due to its CMOS technology.
- What are the propagation delays like in the 74HC74D,653?
The device has balanced propagation delays.
