AT29C256-90PC

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The AT29C256-90PC is a 256K CMOS EPROM device widely used in various applications including electronics, computer processing, and embedded systems. It is a powerful, reliable, and flexible component for all types of memory needs. In this article, we will discuss the application field and working principle of the AT29C256-90PC.

Product Overview

The AT29C256-90PC is a 16K-x-16 EPROM device containing 256Kb of non-volatile programmable memories. It operates using a single 5V supply and is designed using state-of-the-art CMOS technology. The device comes with a wide range of features including high speed access, erase immunity, and low power consumption. This device is available in various packages, such as PLCC and DIP.

Applications

The AT29C256-90PC is widely used in various applications due to its high performance, reliability, and flexibility. These applications include:

• Programmable logic controllers
• Real-time embedded systems
• Microprocessors and microcontrollers
• Personal computers
• Industrial controllers
• Voice and data communication equipment
• Data acquisition systems
• Bio-medical instruments

The AT29C256-90PC can also be used in automotive applications, consumer electronics, and security equipment.

Working Principle

The AT29C256-90PC uses an organized structure of non-volatile memory cells to store information. Each cell consists of two field-effect transistors, one of which performs programmable uni-polarity logic, and the other stores the logic state. The device works by alternately applying a voltage to the logic gate and the storage gate, allowing the charge stored in the gate to be read and stored. This procedure is known as the three-state data transfer process.

The AT29C256-90PC operates using a single 5V supply and is designed to use a wide range of operating voltages. It can sustain a maximum operating voltage of 25V. The device is also capable of operating at temperatures ranging from -40°C to +85°C. The device also has an erase immunity of multiple erase-reprogram cycles, with each cycle taking about 5-8ms.

Conclusion

The AT29C256-90PC is an ideal memory device for applications requiring high speed access, erase immunity, and low power consumption. It is an reliable and flexible component used in a variety of applications, from logic controllers to embedded systems. The device operates using a single 5V supply and is designed to use a wide range of operating voltages. It has an erase immunity of multiple erase-reprogram cycles and can sustain temperatures ranging from -40°C to +85°C.

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