SN74HC74PWT

The SN74HC74PWT is a dual D-type flip-flop integrated circuit (IC) manufactured by Texas Instruments. It is part of the 74HC (High-speed CMOS) family, which is known for its high-speed operation and low power consumption. Here’s a detailed description of its features and specifications:

General Description:

• Type: Dual D-type Flip-Flop
• Package: TSSOP (Thin Shrink Small Outline Package)
• Pin Count: 14 pins
• Functionality: The SN74HC74PWT contains two independent D-type flip-flops, which are used for data storage and transfer. Each flip-flop has a data input (D), a clock input (CLK), a set input (SET), a reset input (RESET), and two outputs (Q and Q’).

Key Features:

• High-Speed Operation: The device operates at high speeds, with propagation delays typically around 15 ns at a supply voltage of 5V.
• Low Power Consumption: The SN74HC74PWT is designed to operate with low power, making it suitable for battery-powered applications.
• Wide Supply Voltage Range: It can operate with a supply voltage ranging from 2V to 6V, providing flexibility for various applications.
• TTL Compatibility: The outputs are compatible with TTL (Transistor-Transistor Logic) levels, allowing for easy interfacing with other digital logic families.
• Asynchronous Set and Reset: The flip-flops can be asynchronously set or reset, allowing for immediate control of the output states regardless of the clock signal.

Electrical Characteristics:

• Input Voltage Levels: The input high voltage (VIH) is typically 2V (for a 5V supply), and the input low voltage (VIL) is typically 0.8V.
• Output Voltage Levels: The output high voltage (VOH) is typically close to the supply voltage, while the output low voltage (VOL) is typically close to ground.
• Maximum Output Current: The device can source or sink up to 25 mA per output, making it capable of driving other logic devices or small loads.

Applications:

The SN74HC74PWT is widely used in various digital applications, including:

• Data storage and transfer in digital circuits.
• Frequency division and signal synchronization.
• State machines and control logic in embedded systems.
• Shift registers and counters in digital systems.

Pin Configuration:

The SN74HC74PWT has a standard pin configuration:

• Pin 1: Q1 (Output of Flip-Flop 1)
• Pin 2: Q1' (Inverted Output of Flip-Flop 1)
• Pin 3: D1 (Data Input for Flip-Flop 1)
• Pin 4: CLK1 (Clock Input for Flip-Flop 1)
• Pin 5: CLR1 (Clear Input for Flip-Flop 1)
• Pin 6: SET1 (Set Input for Flip-Flop 1)
• Pin 7: GND (Ground)
• Pin 8: VCC (Supply Voltage)
• Pin 9: SET2 (Set Input for Flip-Flop 2)
• Pin 10: CLR2 (Clear Input for Flip-Flop 2)
• Pin 11: CLK2 (Clock Input for Flip-Flop 2)
• Pin 12: D2 (Data Input for Flip-Flop 2)
• Pin 13: Q2 (Output of Flip-Flop 2)
• Pin 14: Q2' (Inverted Output of Flip-Flop 2)

Conclusion:

The SN74HC74PWT is a versatile and efficient dual D-type flip-flop that is suitable for a wide range of digital applications. Its combination of high-speed performance, low power consumption, and TTL compatibility makes it a popular choice among engineers and designers in the field of electronics.