CD74ACT373MG4

Series:	74ACT
Packaging:	Tube
Part Status:	Active
Logic Type:	D-Type Transparent Latch
Circuit:	8:8
Output Type:	Tri-State
Voltage - Supply:	4.5 V ~ 5.5 V
Independent Circuits:	1
Delay Time - Propagation:	3ns
Current - Output High, Low:	24mA, 24mA
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SOIC
Base Part Number:	74ACT373

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Logic - Latches

Latches are typically used in digital circuits to hold values, either temporarily or permanently. The CD74ACT373MG4 is a transparent 4-bit latch integrated circuit (IC) used in a variety of applications requiring a higher data rate. It is designed to interface bus systems with different electrical characteristics and is compatible with established TTL/CMOS power standards.The CD74ACT373MG4 is a CMOS logic device with two four-bit latches organized into two 8-bit bytes, each available in three packages; a 24-pin dual-in-line (DIP), a 20-pin small-outline integrated circuit (SOIC), and an 18-pin narrow DIP (NDIP). This makes it suitable for use with a wide range of applications.The CD74ACT373MG4 is designed for high-speed data rates, with a toggle time (tpd) of about 10 ns. The data outputs are individually enabled by the latch enable inputs. Data is transferred to or from the D or D0 through D5 inputs/outputs along with the latch enable, OE, inputs. When enabled, the latch is set or cleared depending on the value of the Data input. The Data, OE1 and OE2 outputs will then remain in the same state until the latch enable is activated again.The CD74ACT373MG4 can operate with a supply voltage of 3.3, 5.0 or 15 volts and is compatible with both the standard two-level and the Schottky input logic systems. The device is made on a 5-micron process with an operating frequency of 520 MHz and can also operate with a wide range of temperature ranges between -55 and +125 degrees Celsius.The CD74ACT373MG4 is extremely useful in application fields such as general-purpose data and information exchange, programmable logic controllers, digital signal processing and audio/video systems, as well as industrial instruments such as A/D converters, driving equipment and field controllers. The device is also used in FPGA and microcontroller projects, as well as print-in field applications.In terms of its working principle, the CD74ACT373MG4 can be thought of as a four-bit latch. The latch consists of four individual data lines, each connected to one of the four Data inputs. The latch enable control line (LE) is then connected to the data lines such that when it is asserted, the Data lines are locked into their current state and can not be changed until the latch enable line is de-asserted again.The data line is kept in either the ‘on’ or the ‘off’ state and the Data outputs remain in the same state until the latch enable line is asserted again. This provides the user with a way to store data over time regardless of what is going on outside of the latch, allowing it to serve as a data storage device.In summary, the CD74ACT373MG4 is a 4-bit latch IC with a wide range of applications, from digital information exchange to audio/video systems. It is designed for high-speed data rates and is suitable for use with a variety of voltage levels. In terms of its working principle, the device serves as a data storage device and can be used to store data over time regardless of what is happening externally.

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