Overview
The 74HC74BQ/S400115 is a dual positive edge-triggered D-type flip-flop integrated circuit produced by Nexperia. This component features individual data (nD), clock (nCP), set (nSD), and reset (nRD) inputs, along with complementary nQ and nQ outputs. It is designed to store data at the nD-input that meets the set-up and hold time requirements on the LOW-to-HIGH clock transition, making it highly versatile for various digital circuit applications.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HC74BQ | 2.0 - 6.0 | CMOS | ± 5.2 | 14 | 82 | low | -40~125 | 106 | 20.9 | 74 | DHVQFN14 |
Key Features
- Positive edge-triggered D-type flip-flop with individual data, clock, set, and reset inputs.
- Schmitt-trigger action in the clock input for high tolerance to slower clock rise and fall times.
- Inputs include clamp diodes to enable the use of current limiting resistors for interfacing with voltages in excess of VCC.
- Symmetrical output impedance and balanced propagation delays.
- High noise immunity and low power dissipation.
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V.
- Multiple package options, including DHVQFN14 with Side-Wettable Flanks for Automatic Optical Inspection (AOI) of solder joints.
Applications
The 74HC74BQ/S400115 is suitable for a wide range of digital circuit applications, including:
- Automotive systems (qualified to AEC-Q100 Grade 1 standard).
- General-purpose digital circuits requiring flip-flop functionality.
- Embedded systems and microcontrollers.
- Communication and networking equipment.
- Industrial control systems.
Q & A
- What is the operating voltage range of the 74HC74BQ?
The operating voltage range is 2.0 to 6.0 volts. - What are the logic switching levels for the 74HC74BQ?
The logic switching levels are CMOS. - What is the maximum clock frequency for the 74HC74BQ?
The maximum clock frequency is 82 MHz. - Does the 74HC74BQ have ESD protection?
Yes, it has ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V. - What is the package type of the 74HC74BQ?
The package type is DHVQFN14. - Is the 74HC74BQ suitable for automotive applications?
Yes, it is qualified to the AEC-Q100 Grade 1 standard. - What are the temperature specifications for the 74HC74BQ?
The component is specified from -40 °C to +125 °C. - Does the 74HC74BQ have symmetrical output impedance?
Yes, it has symmetrical output impedance. - What is the propagation delay of the 74HC74BQ?
The propagation delay is 14 ns. - Does the 74HC74BQ have high noise immunity?
Yes, it has high noise immunity.
