AT28HC256E-90FM/883

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The AT28HC256E-90FM/883 is a low power, 8k-Bit CMOS Nonvolatile Electrically Erasable and Programmable Memory (EEPROM). It is organized as 32 words by 256 bits. This device is a major advancement in EEPROM technology, combining the speed and flexibility of a modern microcontroller with the nonvolatile EEPROM technology. The AT28HC256E-90FM/883 device offers an ideal solution for high-density, low power applications.

The AT28HC256E-90FM/883 addresses are organized sequentially. Each address can store up to 8 bit datas. The device provides different control instructions and addresses to access data, such as Read, Program, Erase, etc. Data in the memory is protected by an array protection mechanism. The AT28HC256E-90FM/883 device contains an on-chip 2K-Bit STATUS Register, which keeps the status of the device and keeps the user informed of the progress of the instruction.

The AT28HC256E-90FM/883 device includes some of the latest features for EEPROMs. It has fast access time of 25-50ns, low supply voltage of 2.5V-5.5V, high speed programming of 0.5 µ-sec/word, chip enable/disable, high endurance, and unparalleled nonvolatile retention of 10 years and more. The AT28HC256E-90FM/883 also provides many data protection features such as hardware write protect, hardware write protect, hardware erase protect, hardware sector protect, hardware write protect inhibit, and erase confirmation. The AT28HC256E-90FM/883 device is available in the industry standard 8-SOIC package.

The AT28HC256E-90FM/883 device is primarily used in embedded applications like network systems, sensors, field data devices, automotive systems and for mobile device data storage. It is suitable for applications where data must be stored permanently and has wide range of temperature operating range. The device can also be used in memory cards and other data processing applications.

The AT28HC256E-90FM/883 working principle is straightforward, data is written and moved back with the help of program and erase instructions. Data is written into the memory by sending program instructions with address setup and data, the program instructions will write the data into the memory. Data can be read from the memory by sending read instructions with address setup and data, the read instructions will fetch the data from the memory. To erase the data the erase instruction is sent with address setup and the data stored in the memory is erased.

The AT28HC256E-90FM/883 device also provides fail-safe operation and ensures that the stored data is not lost during line and power failures. The device is also capable of operating in a wide range of temperatures from -40°C to +85°C, thus making it suitable for different outdoor applications. The device contains an on-chip 2K-Bit STATUS register which contains the status of the device, thus indicating the progress of the instructions. It also features a built-in erase suspend/resume feature, which allows read and write operations while the memory is being erased.

In summary, the AT28HC256E-90FM/883 is a low power, 8k-Bit CMOS Nonvolatile Electrically Erasable and Programmable Memory (EEPROM). The device offers fast access time, low supply voltage, high speed programming, on-chip STATUS register, wide temperature operating range, data protection features, and built-in erase suspend/resume feature. It is suitable for embedded applications like network systems, sensors, field data devices, automotive systems, mobile device data storage, memory cards, and other data processing applications.

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