AT28C040-20FC

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The AT28C040-20FC is a type of memory used in computers and digital systems. It is a 4-megabit, 32K×128, nonvolatile reprogrammable CMOS CMOS EPROM, or electrically programmable read-only memory. It was developed by Atmel, now a subsidiary of Microchip Technology. The memory is unique in that it has an integrated power source and a self-timed write cycle, making it easy to use in complex applications.

AT28C040-20FC Application Fields

The AT28C040-20FC is ideal for use in a number of applications, and is particularly well-suited for embedded systems, where its nonvolatile nature and low operating voltage make it a great choice. It is also a popular choice for industrial, automotive systems, and medical applications, and is used in the military due to its extreme ruggedness. The device is capable of withstanding high temperatures and ESD strikes, making it exceptionally reliable.

AT28C040-20FC Working Principle

The AT28C040-20FC is a 32K×128 memory chip. It features an internal voltage regulator and an onboard oscillator, which make it self-timing and easy to use. The device has two address lines, A14 and A15, which are both active, allowing for a 2K byte page size. It is programmed through an 8-bit byte mode, or a 16-bit word mode, for faster execution. The device also supports a programming margin test to ensure data integrity and verify programming.

The AT28C040-20FC also features a host interface, which supports UART, SPI and JTAG protocols. This makes it easy to interface with various systems. It also boasts a low-power standby mode, in which it draws just 4 mA of current. This makes the AT28C040-20FC an ideal choice for applications where power conservation is a priority.

The AT28C040-20FC is a robust memory device with a long lifespan and excellent reliability. It is well-suited for applications where speed, power consumption and data integrity are important. Its nonvolatile nature ensures that data is safely stored even when the device is powered off, making it ideal for many embedded systems where data needs to be stored reliably and in a tamper-proof manner. The device\'s self-timing write cycle makes it easy to use, and its wide range of interface options ensures compatibility with all kinds of digital systems.

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