CD74HCT40105M96

Logic - FIFOs Memory

The FIFO (First In First Out) principle is a method of storing and retrieving data where the first data stored is the first data retrieved. In Integrated Circuits (ICs), this retrieving concept is applied to random access memory (RAM) chips that are used to store an instruction or data stream. The IC is responsible for delivering the data or instructions in the same order they were written, with the first piece of data or instruction out first.One such IC used in this purpose is the CD74HCT40105M96. It falls under the logic- FIFO family, where it stores and retrieves data as well as controls data information flow. The CD74HCT40105M96 has sixteen bits organized into eight eight-bit words each of which can be written to and from directly. It is designed to work at high speed, and contains a built in control circuit that allows the user to control the access and transmission of data in and out of the IC’s memory space.The CD74HCT40105M96 is a two-port FIFO, capable of performing operations on two ports at the same time. It handles both the reading and writing of sixteen bit data with a single read/write (R/W) operation. A third port allows users to check the status of the device; it also contains a reset feature which can be used to reset the FIFO’s internal state and data paths.To operate, the device needs to be provided with clock signals on all three pins, which are connected to four separate clock inputs. It also needs to be provided with write, read, and reset signals along with the input/output (I/O) signals. The first port is read port and the second port is the write port; hence, the data is written to one port and then read from the other. When the read and write ports are enabled, data is moved from the write port to the read port. This way, the first data written is the first data read.The CD74HCT40105M96 can be used in applications such as pipeline and memory buffers, digital or analog signal processing, communications, dynamic random-access memory (DRAM)! read, write and arbiter functions, optical addresses, and as a general-purpose FIFO memory. Its 2-port read/write feature allows the user to read out two data words simultaneously, and its four separate clock inputs provide the user with the ability to match the desired data transfer rate.In summary, the CD74HCT40105M96 is an IC designed to perform the FIFO operation. It falls under the logic- FIFO family and it is capable of performing operations on two ports at the same time. It is used for applications such as pipeline and memory buffers, digital or analog signal processing, communications, dynamic random-access memory (DRAM)! read, write and arbiter functions, and optical addresses. Thanks to its 2-port read/write feature and four separate clock inputs, it is fast and can match the desired data transfer rate.