SN74AHCT374PWR Integrated Circuits (ICs)

Max Propagation Delay @ V, Max CL:	10.4ns @ 5V, 50pF
Base Part Number:	74AHCT374
Package / Case:	20-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Input Capacitance:	4pF
Current - Quiescent (Iq):	4µA
Voltage - Supply:	4.5 V ~ 5.5 V
Current - Output High, Low:	8mA, 8mA
Trigger Type:	Positive Edge
Series:	74AHCT
Clock Frequency:	130MHz
Number of Bits per Element:	8
Number of Elements:	1
Output Type:	Tri-State, Non-Inverted
Type:	D-Type
Function:	Standard
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

SN74AHCT374PWR is a high-speed, low-power, octal D flip-flop that was designed for applications requiring low-power operation. The device has a data latch, D type flip-flop and a programmable clear. It is available in various packages such as a 20-pin plastic DIP and 14-pin plastic SOIC. It is specifically designed for use with TTL and CMOS logic circuits.

Application Field

The SN74AHCT374PWR provides significant power savings in applications powered by battery. These devices lack internal power-on-reset circuit, so a reset should be applied by an external circuit or by the user’s application code through the data latch. These features make the SN74AHCT374PWR suitable for numerous applications such as automotive, industrial, medical and compute peripherals. Due to its low power consumption, it is a perfect fit for applications that require low power consumption, such as medical monitoring, glove-box models and small electrical components, among others. The device’s low power consumption makes it very reliable in sensitive applications.The SN74AHCT374PWR is also suitable for applications which require very high frequencies, such as frequency synthesisers, optical encoders, smart student systems and data capturing solutions. It can process frequencies in the range from 10 Mhz to 200 Mhz. The SN74AHCT374PWR is also suitable for applications which require multiple data transfers, such as dual-port memory, online banking, smart cards, embedded microcontrollers, gateways, and PC and peripheral devices. With its low power consumption feature, the SN74AHCT374PWR can detect input levels that are as low as 3V.

Working Principle

The SN74AHCT374PWR is a programmable, 8-bit digital flip-flop which is used to store data bits. Each flip-flop receives an independent data bit from the device’s parallel data input port, which is then routed to the outputs of the flip-flop. The flip-flops are clocked by the rising edge of the incoming clock signal. This results in the stored data on the data inputs being transferred to the flip-flops’ output.The SN74AHCT374PWR can be configured as a master and slave flip-flop. In the master configuration, all of the flip-flops are loaded with data at the same time. The output of the master flip-flop acts as the clock signal for all the other flip-flops and ensures that they are loaded with data in the correct sequence. When all the flip-flops are loaded in the correct order, the data can be read back out of the device.The SN74AHCT374PWR is also capable of cascading multiple flip-flops together to create more complex devices. This allows for more data to be stored in the device and be read back out sequentially. For example, the SN74AHCT374PWR can be used as part of a synchronous counter, where the data is input in the form of a binary counter, the series of output are determined by the increment of the input data, and eventually it can be read back from the device sequentially.

Conclusion

The SN74AHCT374PWR is a low-power, octal D flip-flop which is suitable for a variety of applications. It is most suitable for applications requiring low power such as medical monitoring, glove-box models and small electrical components, as well as data capturing solutions and high speed frequency synthesisers. The device can be configured as a master and slave flip-flop, and can be cascaded together to create more complex devices. With its superior performance and low power consumption, the SN74AHCT374PWR is the perfect choice for any application.

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