SN74ACT7801-15FN

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Logic - FIFOs Memory, or First-In-First-Out Memory, are widely used in high speed applications and are an integral component of most modern systems. The SN74ACT7801-15FN is an Advanced Low-Power CMOS FIFO Memory that operates at a high speed of up to 200 Mega Transfers per second (MT/s). It has a wide application field which includes high-speed data transfer, bus interfaces, memory controllers, image processing, high-speed sorting, and multiplexer control.

The SN74ACT7801-15FN consists of an 8-bit memory array embedded between the input and output sections. This device is designed to store up to 1536 words of 8-bit data, with each word having a depth of up to 15 bits. The configuration of the device is such that the first-in-first out organization can be implemented. Data is written in sequence starting with the empty register and then progressing through the subsequently loaded registers until the highest number register is loaded. The next time data is loaded, it will be written into the first or empty register, thus allowing for data flow from input to output.

The working principle of the SN74ACT7801-15FN is based on a programmable wait state. When data is written into the memory, a default wait state is assigned to each of its stored registers. This wait state is dependent on the cycle time of the device, whether it is a read or write cycle, and a minimum wait state of two cycles is required. Once the memory is full, the wait state is increased to full-fill the process. Once this is done, the wait state is decreased to the initial value, thus allowing for data to be written in sequence. The purpose of the wait state is to ensure that the data written into the memory is not read out instantly, and instead is kept in the memory.

The SN74ACT7801-15FN also has an advanced programmable write cycle system that allows for Burst Mode operations. This feature enables the user to set up the memory for burst operations in which the data written in the first wait state cycle is retrieved on the second wait state cycle, and so on. This results in extremely high-speed operations, where the device can achieve a throughput of up to 200 MT/s. Additionally, the device is also equipped with multiple interrupts and flags for easy system control and monitoring.

In conclusion, the SN74ACT7801-15FN is an excellent choice for many applications where high-speed data transfer and storage is required. Its wide application field, combined with its advanced features, make it an ideal choice for many systems. Its programmable wait state feature and advanced Burst Mode operations allow the device to achieve ultra high-speed operations and makes it the perfect choice for many high-speed applications.

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