AT27LV520-90XI

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The AT27LV520-90XI belongs to the flash memory category, with great application potential and impressive working principle. Derived from the “erasable programmable read-only memory” technology, flash memory, or flash EEPROM, is a non volatile memory technology that can be written or programmed, erased or re-recorded in blocks. The AT27LV520-90XI specifically, is a one-time programmable 8-bit CMOS microcontroller-based EEPROM with 90XI architecture. It has many appealing characteristics, such as low power consumption, high data integrity and 25 years long data retention.

Due to its advanced features and user friendly compliant pin-out, the AT27LV520-90XI makes a popular choice in a multitude of application fields, from automotive and industrial to consumer electronics and medical applications. From controlling a car\'s airbags, ignition and air-conditioning system to managing the credentials of customer tokens and smart healthcare implants, the AT27LV520-90XI is a must-have component for almost any application. Its wide range of memory options, ranging from 32 to 256 KB, and its pin-out reconfigurability, enable manufacturers to design optimized solutions for each of their specific needs, allowing them to reduce overall costs.

The AT27LV520-90XI works usually in two modes; the idle mode, during which it consumes the least power, and the active or command mode, which is power consuming. During the idle mode, the device responds to very basic signals, such as Data I/O, ALE and HOLD or READY. In order to enter the command mode, however, the device must first receive an initial signal, which comes from the initialization of the 70h command, followed by an initial byte of data. Once the command state has been established, the chip is set in the read/write data mode, which is the basis of its operation both in the idle and active modes.

The timing of the AT27LV520-90XI is fast and highly reliable, allowing for a maximum transfer speed of up to 8MHz for the read operations and up to 128 KBytes/sec for the write operations. Data integrity is ensured via both power clamping and data shielding. If a power interruption occurs, instructions to the device can be stopped in order to prevent further damage. To protect against unwanted data overrides, on-chip data shielding prevents any external entities from corrupting active data. Whenever the device is reset to its default mode, the previously recorded data is preserved.

Overall, the AT27LV520-90XI is an extremely powerful and versatile component, making it a perfect fit in many various applications across numerous industries. With its great data retention, low power consumption and high timing performance, the device is ideally suited for mission critical tasks and applications. Its customizable and programmable features, as well as its high level of data integrity and protection, make the AT27LV520-90XI a top pick for any device manufacturer.

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