Overview
The 74LVC74AD, produced by Nexperia USA Inc., is a dual edge-triggered D-type flip-flop integrated circuit. This component features individual data (nD) inputs, clock (nCP) inputs, and asynchronous set (nSD) and reset (nRD) inputs. It also includes complementary nQ and nQ outputs. The flip-flop operates on a positive-edge trigger, meaning the data input is transferred to the output on the LOW-to-HIGH transition of the clock pulse. This device is part of the LVC (Low Voltage CMOS) family, known for its low power consumption and wide supply voltage range from 1.2 V to 3.6 V, making it versatile for various 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC74AD | 1.2 - 3.6 | CMOS/LVTTL | ± 24 | 2.5 | 250 | low | -40~125 | 109 | 21 | 68 | SO14 (SOT108-1) |
Key Features
- Positive-edge trigger: Data input is transferred to the output on the LOW-to-HIGH transition of the clock pulse.
- Asynchronous set and reset: The set and reset inputs operate independently of the clock input and are active LOW.
- Schmitt trigger action: All inputs have Schmitt trigger action, making the circuit highly tolerant of slower input rise and fall times.
- 5 V tolerant inputs: Allows interlacing with 5 V logic.
- Wide supply voltage range: Operates from 1.2 V to 3.6 V.
- Low power consumption: CMOS technology ensures low power usage.
- Direct interface with TTL levels: Compatible with TTL logic levels.
- Compliance with JEDEC standards: Meets JESD8-7A, JESD8-5A, and JESD8-C/JESD36 standards.
Applications
The 74LVC74AD is suitable for a wide range of applications across various industries, including:
- Automotive: Used in automotive systems for reliable and efficient data storage and transfer.
- Industrial: Employed in industrial control systems, automation, and monitoring.
- Consumer Electronics: Found in consumer devices such as mobile phones, tablets, and other portable electronics.
- Computing and Data Storage: Used in computer peripherals, data storage devices, and other computing hardware.
- Wearables and IoT Devices: Suitable for wearables and IoT devices due to its low power consumption and compact package.
Q & A
- What is the primary function of the 74LVC74AD?
The 74LVC74AD is a dual edge-triggered D-type flip-flop with set and reset inputs, designed for data storage and transfer.
- What is the supply voltage range of the 74LVC74AD?
The supply voltage range is from 1.2 V to 3.6 V.
- What type of trigger does the 74LVC74AD use?
The 74LVC74AD uses a positive-edge trigger.
- Are the set and reset inputs synchronous or asynchronous?
The set and reset inputs are asynchronous and active LOW.
- What is the maximum clock frequency of the 74LVC74AD?
The maximum clock frequency is 250 MHz.
- What is the output drive capability of the 74LVC74AD?
The output drive capability is ± 24 mA.
- Is the 74LVC74AD compatible with TTL logic levels?
Yes, it is compatible with TTL logic levels.
- What package types are available for the 74LVC74AD?
The 74LVC74AD is available in SO14 (SOT108-1) package among others.
- What are the operating temperature ranges for the 74LVC74AD?
The operating temperature range is from -40°C to 125°C.
- Does the 74LVC74AD comply with any specific standards?
Yes, it complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36.
