SN74AHC74PWG4 Dual D-Type Positive Edge-Triggered Flip-Flop

The SN74AHC74PWG4 from Texas Instruments is a high-performance, dual D-type positive edge-triggered flip-flop integrated circuit. This device is part of the 'AHC' family, which stands for Advanced High-Speed CMOS, providing the perfect balance between speed and power consumption. This makes it an ideal choice for a wide range of applications, from consumer electronics to complex industrial systems.

The SN74AHC74PWG4 features two independent D-type flip-flops with individual clear and preset inputs for each flip-flop. The device operates on a 2-V to 5.5-V V<sub>CC supply voltage, making it versatile for interfacing with both 3.3V and 5V logic levels. With its edge-triggered design, each flip-flop changes state on the positive-going transition of the clock input signal when the clock enable (CLKEN) input is at a low level.

Clear (CLR) and preset (PRE) inputs can be used to override the clock and directly set or reset the Q output to 1 or 0, respectively. These inputs are active low, providing added flexibility and control in system design. It is important to note that the CLR and PRE inputs must never be asserted simultaneously, as this would lead to unpredictable behavior of the flip-flop outputs.

Additional features of the SN74AHC74PWG4 include a wide operating temperature range of -40°C to 85°C and a standard TSSOP package, which is suitable for surface-mount technology (SMT) and offers a compact footprint for space-constrained applications. The device also provides maximum t<sub>pd (propagation delay time) of 8.5 ns at 5 V, ensuring fast response times for critical applications.

With its robust design and high functionality, the SN74AHC74PWG4 is a reliable choice for designers looking to implement flip-flop logic in their digital circuits. Its combination of speed, low power consumption, and a wide range of operating voltages make it a versatile component for any electronics project.

Key Features:

• Dual D-type positive edge-triggered flip-flop
• Operating voltage range: 2 V to 5.5 V
• Independent clear and preset inputs for each flip-flop
• Maximum propagation delay time (t<sub>pd): 8.5 ns at 5 V
• Operating temperature range: -40°C to 85°C
• Compact TSSOP packaging