AT28C256E-15DM/883

Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	256Kb (32K x 8)
Write Cycle Time - Word, Page:	10ms
Access Time:	150ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-55°C ~ 125°C (TC)
Mounting Type:	Through Hole
Package / Case:	28-CDIP (0.600", 15.24mm)
Supplier Device Package:	28-CDIP
Base Part Number:	AT28C256

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AT28C256E-15DM/883 Application Field and Working Principle

Introduction

AT28C256E-15DM/883 is a high performance 8-bit CMOS electrically programmable read only memory (EPROM). It is an ideal solution for applications that require frequent reprogramming. This article will provide a brief introduction of its working principle, application fields and technical parameters to help better understand its use cases.

Working Principle

AT28C256E-15DM/883 consists of semi-implausible CMOS circuit technology. It is fabricated by using the company\'s 0.6-micron CMOS process and is compatible with existing compatible packages.This chip consists of 256K, 512K and 1M memory cells. The cell can be divided into 4 parts, the control circuit, the addr/data register, the address decoder and the SRAM array. The addr/data register is connected to an external microcontroller or CPU to read or write data. A write command is set by the control circuit, and the data is read or written to the selected address. The address decoder then decodes the address and selects the corresponding row or column of the target cell.The AT28C256E-15DM/883 device offers various levels of program speed and different memory protection levels, which makes it suitable for a variety of applications. The device can talk to one device at a time, meaning that it can read or write data to a specific address.

Applications

AT28C256E-15DM/883 has wide range of applications, including but not limited to industrial automation, medical equipment, automotive, security systems and other areas that require frequent reprogramming. For example, in industrial automation, it can be used to store codes and settings, while in automotive applications, it can be used to store information such as engine performance parameters.In sectors such as communications, military, aerospace and automobile that require high reliability and stability, this chip can also be utilized as it has the ability to store large volumes of data reliably and over long periods of time.The AT28C256E-15DM/883 also offers data transmitting and receiving capabilities, which makes it suitable for applications where fast data communication between multiple systems is needed.

Technical Parameters

Memory

The half-byte security password can be set to read and write the data. The data can be stored securely and only accessed by authorized users through the password protection procedure.

Operating Voltage

The chip supports operating voltages of 5V, 3V and 2.7V.

Architecture

This architecture of AT28C256E-15DM/883 consists of a 256K, 512K, and 1M bit cell array, with a 256-byte page structure. The dense-array architecture was designed to reduce EPROM programming time and increase reliability.

Access Time

The chip boasts access times of 250 nano-seconds.

Conclusion

AT28C256E-15DM/883 is a highly reliable and stable 8-bit CMOS electrically programmable read-only memory, suitable for various applications that require secure data storage and frequent reprogramming. It boasts the technical parameters described in this article, proving its usability and compatibility with other chips in many industries.

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