AT28HC256F-90SA

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	256Kb (32K x 8)
Write Cycle Time - Word, Page:	3ms
Access Time:	90ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 125°C (TC)
Mounting Type:	Surface Mount
Package / Case:	28-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	28-SOIC
Base Part Number:	AT28HC256

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Memory

AT28HC256F-90SA is a high-performance non-volatile memory IC created by Atmel Corporation in the early 1990s. This memory IC is used in many applications such as industrial controllers, medical diagnostic systems, avionics, and communications equipment. The memory IC is also used in the automotive and consumer markets. This article will discuss the application field and working principle of the AT28HC256F-90SA.The AT28HC256F-90SA is an 8-bit CMOS non-volatile memory IC. It is based on High Performance CMOS (HP-CMOS) technology which combines CMOS logic and non-volatile memory in a single package, resulting in a more reliable and economical product. The AT28HC256F-90SA provides 256Kbytes of memory space, which is suitable for a wide range of applications. It has a three-state, output-enable/high voltage pin, with TTL compatible inputs and outputs. The AT28HC256F-90SA is offered in both 8-pin and 24-pin versions.The AT28HC256F-90SA is a versatile, low-power and cost-effective alternative to rotating backup capacitors. This memory IC utilizes a special CMOS memory cell called a Fat-Cell which offers increased speed and precision when compared to regular CMOS cells. It is extremely reliable, with a minimum endurance of over 500,000 writes and an operating temperature range of -55°C to +125°C. The AT28HC256F-90SA also features an embedded trim-capacitor, which enables a higher speed of data storage than standard CMOS memories.The AT28HC256F-90SA uses a proprietary High-Voltage CMOS (HV-CMOS) technology that allows the IC to store data even after the power has been turned off. The HV-CMOS architecture allows for faster data access and higher reliability than regular CMOS memory.The AT28HC256F-90SA is used in a wide range of applications, from industrial controllers and medical diagnostic systems to avionics and communications equipment. It is also used in the automotive and consumer markets. The main reason for its widespread use is its high memory capacity and versatility.The working principle of the AT28HC256F-90SA is very simple. It operates by storing data in a special type of logic gate called a fat-cell which is comprised of two transistors. When a voltage is applied to the fat-cell, one of the transistors will be turned off, while the other remains on. This allows the IC to store a single bit of information.The AT28HC256F-90SA is a versatile, low-power and cost-effective alternative to rotating backup capacitors, and is used in many applications. Its immense memory capacity and use of HV-CMOS technology make it an ideal choice for a variety of applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description