Overview
The 74HC74DR2G, produced by onsemi, is a high-performance Silicon-Gate CMOS dual D flip-flop with set and reset inputs. This device is identical in pinout to the LS74 and is designed to be compatible with standard CMOS outputs, as well as LSTTL outputs when used with pullup resistors. It consists of two D flip-flops, each with individual set, reset, and clock inputs. The information at the D-input is transferred to the corresponding Q output on the next positive-going edge of the clock input. Both Q and Q' outputs are available from each flip-flop, and the set and reset inputs are asynchronous.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Operating Voltage Range | VCC | 2.0 to 6.0 V |
| Minimum Operating Supply Voltage | VCC | 2.0 V |
| Maximum Operating Supply Voltage | VCC | 6.0 V |
| Minimum Storage Temperature | TSTG | -55°C |
| Maximum Storage Temperature | TSTG | 125°C |
| Operating Temperature Range | TA | -55°C to 125°C |
| Maximum Propagation Delay @ V, Max CL | tPD | 17 ns @ 6V, 50pF |
| Input Capacitance | CIN | 10 pF |
| Quiescent Current | Iq | 2 µA |
| Output High, Low Current | Ioh, Iol | 5.2 mA, 5.2 mA |
| Clock Frequency | fCLK | 28 MHz |
| ESD Performance | HBM, MM | 2000 V, 200 V |
Key Features
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Low Input Current: 1.0 µA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the JEDEC Standard No. 7A Requirements
- Pb-Free Packages are Available
- Asynchronous Set and Reset Inputs
- Positive Edge Triggered
Applications
The 74HC74DR2G is suitable for a variety of digital circuit applications, including:
- Sequential Logic Circuits
- Counters and Shift Registers
- Memory Elements
- Timing and Control Circuits
- General Purpose Digital Logic
Q & A
- What is the operating voltage range of the 74HC74DR2G?
The operating voltage range is from 2.0 to 6.0 V.
- What is the maximum propagation delay at 6V and 50pF load?
The maximum propagation delay is 17 ns.
- Is the 74HC74DR2G compatible with LSTTL outputs?
Yes, it is compatible with LSTTL outputs when used with pullup resistors.
- What is the quiescent current of the 74HC74DR2G?
The quiescent current is 2 µA.
- What is the clock frequency of the 74HC74DR2G?
The clock frequency is up to 28 MHz.
- Does the 74HC74DR2G have Pb-Free packages available?
Yes, Pb-Free packages are available.
- What is the ESD performance of the 74HC74DR2G?
The ESD performance is HBM ≥ 2000 V and Machine Model ≥ 200 V.
- What is the input capacitance of the 74HC74DR2G?
The input capacitance is 10 pF.
- What are the output high and low current capabilities of the 74HC74DR2G?
The output high and low current capabilities are both 5.2 mA.
- Is the 74HC74DR2G compliant with industry standards?
Yes, it is in compliance with the JEDEC Standard No. 7A Requirements.
