AT27C080-90PC

AT27C080-90PC application field and working principle

AT27C080-90PC is a type of UV EPROM (Erasable Programmable Read-Only Memory) produced by AT&T, with the capacity of 8Kbits (1KB). It is widely used in Automotive, Industrial, Telecommunications, and Aerospace applications.

Application field

At its core, the AT27C080-90PC is designed to replace a variety of other types of EEPROMs with a single, integrated, and cost-effective solution. Originally designed as a replacement for the AT28C256-90PC, this EEPROM can provide a cost-effective way for automotive, industrial, and telecommunications applications to keep data safe and secure.

In the automotive industry, AT27C080-90PC offers the ability to read and store engine control, vehicle electronic control, and sensor information. This information is critical for proper maintenance of the vehicles and can be used to detect problems early on and prevent potential accidents from happening.

In industrial applications, the AT27C080-90PC can be used to store factory settings, production information, and diagnostic data. This will ensure that the manufacturing processes are done precisely and efficiently and thus avoiding expensive errors.

In telecommunications, this EEPROM can be used to store and secure telephone billing data and other important information such as system settings, line quality, and call history.

In aerospace applications, the AT27C080-90PC is used to store critical aircraft control and navigation data, ensuring the safety of passengers and personnel on board.

Working Principle

The AT27C080-90PC is programmed by UV light and its detection sensor. Since UV light erases and resets all the memory within the device, it prevents hackers from accessing the data stored within or sabotaging the devices.

The programming process of the AT27C080-90PC involves a three-phase protocol. The first phase is loading, in which the data stored in the programming circuit is loaded into the EEPROM to be programmed. The second phase is the programming itself, in which the data stored in the EEPROM is written and formatted into the desired format. Finally, the last phase is the verification phase, in

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