MC74HC373ADTG

Series:	74HC
Packaging:	Tube
Part Status:	Active
Logic Type:	D-Type Transparent Latch
Circuit:	8:8
Output Type:	Tri-State
Voltage - Supply:	2 V ~ 6 V
Independent Circuits:	1
Delay Time - Propagation:	21ns
Current - Output High, Low:	7.8mA, 7.8mA
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	20-TSSOP
Base Part Number:	74HC373

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Introduction

The MC74HC373ADTG is a high speed octal latch that has two sets of four data inputs (D0-D7) and two sets of four data outputs (Q0-Q7).The MC74HC373ADTG provides a low power, non-volatile storage option for 8-bit data in a 16-pin package. The MC74HC373ADTG is well suited for use in applications that require a low powered latch or buffer with octal data storage.It is designed for low voltage (2.7V to 5.5V) CMOS applications with an operating temperature of -40°C to +85°C.

Applications

The MC74HC373ADTG is commonly used in data caching, data storage, and signal buffering applications. It is highly successful in applications where the reduced power consumption and low voltage operation required by low voltage CMOS technology are used.It is well suited for applications that require low power consumption and high speed buffering. Examples include digital signal processing (DSP) systems, analog-to-digital/digital-to-analog converters (ADC/DAC), microprocessors, digital clocks and communications devices. Other applications of the MC74HC373ADTG include high speed memory access systems and controlling high speed communications equipment. It is also used for data transfer between multiple systems, such as timing, synchronization, and general data transfer.

Features

The MC74HC373ADTG has several features that make it an attractive choice for low voltage and low power applications. It has a very low current draw and a minimum standby current of less than 1 μA. Its high input impedance reduces loading on the device and makes it suitable for very high frequency signals. Its low power operation and small size make it suitable for use in battery-powered equipment, such as portable medical devices, industrial controllers and embedded systems. The MC74HC373ADTG has internal protection circuitry which ensures functional safety in applications with under-voltage conditions and over-voltage conditions. Its power-on reset circuit ensures that the latch is reset when the power supply is applied.

Working Principle

The MC74HC373ADTG is an octal latch that stores 8-bit of data in two 4-bit latches. The two 4-bit latches are controlled by a single chip select (CS) line. When the CS line is active, the data is latched in the two 4-bit latches. The outputs of the two 4-bit latches are connected to the inputs of the two 4-bit latches. This creates a shift register where data is shifted from one 4-bit latch to the other 4-bit latch every time the CS line is activated. The data stored in the MC74HC373ADTG is non-volatile, meaning it will remain stored even when the power is removed. This makes it very useful for storing data in low power applications, such as in battery-powered equipment.

Conclusion

The MC74HC373ADTG is a popular choice for applications that require low power, high speed storage of data. It is well suited for use in digital signal processing (DSP) systems, analog-to-digital/digital-to-analog converters (ADC/DAC), microprocessors, digital clocks and communications devices. It is also used for data transfer between multiple systems, such as timing, synchronization, and general data transfer. With its low current draw and small size, it is the perfect choice for battery-powered equipment and embedded systems.

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