SN74AHC374N

Series:	74AHC
Packaging:	Tube
Part Status:	Active
Function:	Standard
Type:	D-Type
Output Type:	Tri-State, Non-Inverted
Number of Elements:	1
Number of Bits per Element:	8
Clock Frequency:	120MHz
Max Propagation Delay @ V, Max CL:	10.1ns @ 5V, 50pF
Trigger Type:	Positive Edge
Current - Output High, Low:	8mA, 8mA
Voltage - Supply:	2 V ~ 5.5 V
Current - Quiescent (Iq):	4µA
Input Capacitance:	4pF
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	20-DIP (0.300", 7.62mm)
Base Part Number:	74AHC374

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Introduction

A logic flip flop is an electronic, combinational logic device which has two stable state outputs. Flip flops are used in a wide variety of digital systems and analog circuits, including clocking and clock recovery circuits, digital signal processing (DSP) circuits, and memory systems. The SN74AHC374N is a high-performance flip-flop logic integrated circuit (IC) part from Texas Instruments®. The SN74AHC374N is part of the High-Speed CMOS TTL Compatible family of ICs from TI, which provides fast switching, low power consumption and compatibility with standard TTL logic levels for applications requiring high-speed performance.

SN74AHC374N Application Field

The SN74AHC374N is used for signal conditioning and buffering, clocking and time synchronization, signal timing and control, signal regeneration, and AC data and voltage level shifting. It can also be used to reduce power consumption in electronic systems and can be employed in areas such as digital signal transmission and reception, biomedical instrumentation, digital signal processing and high-speed data transfer systems. In addition, the Dual D-type flip-flop feature of the SN74AHC374N makes it suitable for synchronous data transmission.The SN74AHC374N is an ideal choice for applications with stringent timing requirements and noise constraints due to its high speed operation, low power consumption and reliable operation in noisy environments. For example, it can be used for data communications to ensure proper data integrity, correct data transmission timing, and that transmitted data is of the correct format. Moreover, its low power consumption makes it suitable for use in battery-powered and low-power applications.

SN74AHC374N Working Principle

The SN74AHC374N is a type of dual D-type flip-flop logic IC that contains two flip-flops with clock enable and reset inputs. The flip-flops are used to store and transfer data based on the state of the clock enable and reset inputs. The SN74AHC374N will receive two data bits (D1 and D2) on the two data inputs and has a clocking input (CP) for controlling data transfers between the flip-flops.The flip-flop system uses a positive-edge triggered D-type flip-flop design, which changes states on the rising edge of the clock input. The SN74AHC374N is an asynchronous type of flip-flop, meaning that the data is stored and transferred when the clock input transitions from a Low to a High state. The flip-flops are also transparent, meaning that the data bits can be read from the output while the CP pin is Low and the data fed into the output available at the same time, allowing data to be clocked in and out of the device.The IC also features two asynchronous (active-low) reset input pins that can be used to reset the state of both flip-flops simultaneously or individually. Furthermore, the clock enable pins can be used to disable the clock inputs of the two flip-flops. This allows the state of the flip-flops to remain fixed during clocking, as long as the clock enable pins remain low.

Conclusion

The SN74AHC374N is a versatile and reliable dual D-type flip-flop logic IC from Texas Instruments®. It is designed to meet the stringent timing and noise requirements of applications such as digital signal transmission and reception, biomedical instrumentation, digital signal processing, and high-speed data transfer systems. Moreover, its low power consumption and fast switching make it suitable for use in battery-powered and low-power applications. The flip-flops are operated by clock signals and two asynchronous reset inputs, and the data can be read or written while the clock is disabled.

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