MT47H128M8CF-3 AAT:H

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Memory is an important part of all systems, whether they are computing, communications, or embedded devices. Memory devices such as MT47H128M8CF-3 AAT:H are used in all of these devices. This article will discuss the application field and working principle of MT47H128M8CF-3 AAT:H.

MT47H128M8CF-3 AAT:H is a type of Synchronous Dynamic Random Access Memory (SDRAM) designed for portable devices. It is a 128Mbit, eight- Bank device that is composed of thirty-two (32) 512Kx4 bit memory arrays. The device has a single 64-bit I/O port that is used for data and commands. The SDRAM is designed to operate at DQS clock frequency up to 400MHz and has a maximum burst access time of 8 clocks. It operates from a single power supply of 2.6V to 2.9V.

In terms of its application field, the MT47H128M8CF-3 AAT:H is often used in mobile phones, digital cameras and PDAs where memory capacity and power consumption are important considerations. It is also used in information and communication devices, embedded systems and consumer-electronics products such as digital TVs, set-top boxes and Blu-Ray players.

MT47H128M8CF-3 AAT:H uses a synchronous design to access the I/O port. Read/Write commands are sent to the SDRAM through the I/O port. A read/write burst can be initiated by either a read or write command. The burst will continue until it is terminated by a specific number of accesses or by a pre-defined refresh. This burst can be up to four clock cycles long.

When a read or write command is issued, the MT47H128M8CF-3 AAT:H will begin a burst sequence. During the burst sequence, the address inputs move sequentially and data moves in or out of the SDRAM depending on whether a read or write command was issued. The clock frequency ensures that the burst is asynchronous and is independent of other system activity.

At the end of a burst sequence, the SDRAM will issue a Refresh command to ensure data consistency. The Refresh command must be issued at least once every 64ms by the device\'s controller. This command will reset all internal counters and will reset the output buffer and data registers.

In conclusion, the MT47H128M8CF-3 AAT:H is a type of Synchronous Dynamic Random Access Memory (SDRAM) which has a wide range of applications in portable and consumer-electronics products due to its low power consumption and high-data throughput capabilities. Its operation is driven by synchronous commands and it requires periodic Refresh commands to maintain data protection.

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