The M74HC74 is a high speed CMOS dual D type flip flop with clear function. It has the characteristics of high speed, low power consumption, high noise immunity, symmetrical output impedance and balanced propagation delay.
The M74HC74 is a high‑speed CMOS dual D‑type flip‑flop with asynchronous preset and clear inputs. It transfers data from the D inputs to the Q outputs on the rising edge of the clock and includes protection against static discharge and transient voltages.
The document lists absolute maximum ratings, recommended operating conditions, DC and AC electrical specifications, pin‑out diagrams, timing diagrams, and mechanical data for the TSSOP‑14 and DIP packages. Key parameters such as supply voltage range, power dissipation, and propagation delays are provided for designers integrating the device into digital circuits.
| Maximum Clock Frequency (typ) | 87 MHz |
|---|---|
| Supply Voltage Range | 2 V to 6 V |
| Power Dissipation (max) | 500 mW |
| Propagation Delay (typ, VCC=2.0 V) | 48 ns |
| Input High Level Voltage (typ) | 1.5 V |
The recommended supply voltage range is 2 V to 6 V.
The device can operate up to a typical maximum clock frequency of 87 MHz.
The absolute maximum power dissipation is 500 mW (derated to 300 mW at 85 °C).
Typical propagation delay is about 48 ns at a 2 V supply.