AT27C520-90SC

AT27C520-90SC is a high-performance non-volatile, electrical erasable CMOS EPROM. It belongs to the Memory variant and is widely applied across numerous and varied fields for its diverse capabilities and reliability. This article delves into the application fields and working principle of AT27C520-90SC.

AT27C520-90SC Application Fields

AT27C520-90SC is applicable in a wide array of sectors and fields. In the computer and telecommunications world, it is used in a variety of applications including routers, switches, Wi-Fi access points, and cable modems. It is used to store user-defined programs, firmware, system and monolithic code, as well as data, graphics and sound. It is also employed in the automotive industry in security systems and dashboards, in medical and industrial instrumentation, aerospace and military applications, and various consumer products.

Working Principle

AT27C520-90SC is capable of storing 64K bytes of data, organized into 4K byte blocks. The memory is organized in 16 sectors, each with its own 256 byte block addressable code. The EPROM is programmed by writing bytes to the memory. An electrically-erasable technique is used to erase data when it is no longer needed. The programming and erasing of memory is accomplished by applying a high voltage to the address inputs.

Once the data is written to the AT27C520-90SC, it can be read by applying a clock signal to the data lines. Data stored in the memory is non-volatile, meaning that it is not lost when the device is powered down. At power up, the memory retains the data that was written to it.

AT27C520-90SC also includes a Sleep Mode which prevents the device from accessing data while it is in sleep mode. This is useful when the device is not in use and minimizes power consumption. The device can be reactivated by providing a low voltage pulse to its chip enable pin. This ensures that the data stored in the memory remains intact even when the device is not in use.

Conclusion

AT27C520-90SC is a non-volatile Memory variant greatly employed for its high performance capabilities and reliability. It is applicable in numerous fields across the consumer products, computer and telecommunications, automotive, medical and industrial instrumentation, aerospace and military applications. The data is programmed to and erased from the EPROM by applying a high voltage to the address inputs while the data is read by applying a clock signal to the data lines. Additionally, the AT27C520-90SC includes a sleep mode, which prevents the device from accessing data while it is in sleep mode, thus minimizing power consumption.