SN74ABT373DBR Integrated Circuits (ICs)

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The SN74ABT373DBR is a high performance octal D-type transparent latch with tri-state drivers. It is designed for low power, high speed operation and is a member of the ABT family of advanced BiCMOS products from Texas Instruments. It is a general purpose octal latch with transparent inputs and outputs that allow easy expansion of the data buses in various digital systems. The latch is organized as two individual 4-bit registers, each with independent transparency inputs and outputs. The low active latency time of the part ensures that it is suitable for synchronizing fast data streams applications, such as audio data communication.

The SN74ABT373DBR is primarily used in address latches, bus expansion, and other address. Each 4-bit section of the device has two independent transparency inputs and two independent tri-state outputs. It is capable of holding 8-bit values, and the outputs can be configured in two modes. In the first mode, the outputs reflect the inputs, while in the second mode, the outputs produce the uncontended value that is set by the latch control lines.

The SN74ABT373DBR features an active-high enable pin, two active-low Chip Select pins, two active-low Data Input pins, two active-high Data Output pins, two active-high Clock Input pins, and one active-low latch Enable pin. The input pins are for the data that is to be latched, the clock input pins are for providing the clocking signal to the latch, and the latch enable pin sets the truth value of the output pins. The enable pin provides the power to the part and sets the outputs to the correct levels when enabled. The chip select pins enable or disable the part as needed.

The function of the SN74ABT373DBR is to store digital signals in a stable state similar to a flip flop and permit the output to be readand written. In this way this latch enables easy expansion of the data buses of various digital systems. It is used in memory address and bus expansion applications, gate and counter applications, multiplexers and transmission gate systems, logic comparators, audio and data communication and other applications where data needs to be latched are stored and managed.

The types of memory that the SN74ABT373DBR can be used in include synchronous, asynchronous, SRAM, EPROM, EEPROM, and many other kinds. Asynchronous memory, such as SRAM, operates at the highest speed but can be volatile and can be written to without first having to erase the current content. Asynchronous memory is commonly used in digital systems where speed is important and can be expanded using the SN74ABT373DBR latch. The device may also be used to expand the address bus in many digital systems.

The working principle of the SN74ABT373DBR is the same as the working principle of any other latch. The device is used to transfer information from two inputs, A and B and lock it in place until the latch is disabled. When the latch is enabled, the output, Q, is set to the same value as either input A or B, whichever is clocked into the latch. The output, QN, is the complement of the other output, Qt, and is always the opposite logic level of the other output. The device also contains an enable pin which regulates the input and output connections to the latch.

The SN74ABT373DBR is a versatile and powerful octal latch for use in a wide range of digital systems. It can be used to expand the memory bus, expand the address bus, and allow for easy expansion of data buses in various digital systems. It has low power consumption and high speed performance, making it an ideal choice for many applications. With its wide range of features and versatile applications, the SN74ABT373DBR is sure to be a valuable part of your design.

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