74LV373D,118

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The 74LV373D,118 is a member of the Logic - Latches family. It is an octal D-type transparent latch device with output registers. It is capable of latching up to eight bits of parallel data and tracking the data on its input and output buffers. The device has active-high Enable (E) and Strobe (S) inputs for latching data. The Enable (E) input is used to latch data into the registers at the positive active-high edge of the Strobe (S) input. When the Enable input is active-high, the information at the data inputs is held by the flip-flops, providing transparent latch operation.

The device allows data to be transferred serially or in parallel depending on the application. If a parallel interface is used, eight bits of data can be transferred at a time across the eight data lines. Data is allowed to flow freely into the input lines and is forced out of the output lines. When the Enable input is active-high, the device will latch the data on the data lines into the output registers. Any changes that occur on the data lines after the latch is enabled will not be observed on the output lines until the latch is again enabled.

The Strobe input allows for the 74LV373D,118 to interface with a wide variety of devices. The Strobe is most commonly used with an external clock signal for latched serial data transmission. When used with two-way synchronous handshaking protocol like RS-232 or SPI, the Strobe is used to synchronize the data between the connected devices. The device is also used in which a master device or a CPU is used to initiate and control data flow. In these cases, the Strobe input is connected to the control lines on the master device and the Enable input is connected to the clock line.

The 74LV373D,118 device also has active-high Overwrite (OW) input. This input enables or disables the outputening and overwriting of output signals by input data directly to the output register. The Overwrite input can also be used to reset the output registers, effectively erasing any data latched at the input and output for read purposes. The enable and overwrite feature of the device make it ideal for applications involving multiple IO devices.

The 74LV373D,118 device is widely used in a variety of applications and systems requiring a simple parallel latching device. It is commonly used in programmable logic controllers (PLCs), data acquisition systems, industrial RS-485 applications, bus transceivers and communications controllers. The device is built to operate in both 5V and 3.3V logic systems and is compatible with TTL and CMOS logic environments.

In summary, the 74LV373D,118 is a versatile latching device that is capable of latching data in both parallel and serial formats. It can be used in a variety of applications and systems requiring data latching, such as PLCs, data acquisition systems, industrial RS-485 applications and bus transceivers. The device is built to operate in a variety of logic systems and is compatible with both TTL and CMOS logic environments.

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