SN74ACT7802-25FN

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Logic - FIFOs Memory have been widely used in various fields. SN74ACT7802-25FN is one of the most popular products in this area. This paper is aimed to discuss the application field and working principle of SN74ACT7802-25FN.

SN74ACT7802-25FN—Application Field

SN74ACT7802-25FN is a first-in-first-out (FIFO) memory that consists of two independent memories. It provides a data storage capacity of 128 bytes (including 8 parity bits). It is used in many different applications and especially suitable for data communication and data synchronization.

• Data Communication: SN74ACT7802-25FN can be applied for device interconnections in 802.11, 802.16 and 802.20 wireless networks. The FIFO memory can transmit data from one device to another and ensures that the data is transmitted in the same order as they are stored in memory. It has an instant response meaning that no data is lost.
• Data Synchronization: SN74ACT7802-25FN can be used for data synchronization between two or more devices. It can handle incoming data streams and will ensure that the data is transmitted in the same order. It can also be used for the exact timing of data transmission, making it ideal for applications such as streaming audio/video.

SN74ACT7802-25FN—Working Principle

The main components of SN74ACT7802-25FN are two parallel memory buses, a flag bus, and five controlled, master-slave counters. It is designed to use first-in, first-out (FIFO) data structure. This ensures that data stored in the memory is sent out in the same order that it was received.

• Memory Bus: The two parallel memory buses of the SN74ACT7802-25FN are responsible for the storage and retrieval of data from the system memory. They can store up to 128 bytes of data and are 24 bits wide. Data stored in the memory is transferred to the flag bus and is then output to the system.
• Flag Bus: The flag bus of the SN74ACT7802-25FN can be used to monitor the status of the FIFO memory. It is used to track the location of the first data byte and to detect errors or data overflow. The flag bus can also be used to reset the memory if necessary.
• Controlled Counters: The five controlled, master-slave counters are used to track the location of the data stored in the memory. They can be used to monitor the number of bytes stored in the memory and also indicate when the memory is full or empty. The counters are triggered each time data is transferred into or out of the memory.

The SN74ACT7802-25FN is a highly versatile data storage and transmission system. It is ideally suited for data communication and synchronization applications due to its reliable and fast data throughput. It is also capable of handling a wide range of data types including audio/video streams. The SN74ACT7802-25FN is a true multi-use device that can be used in many areas.

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