AT45DB041B-SU

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	FLASH
Technology:	FLASH
Memory Size:	4Mb (264 Bytes x 2048 pages)
Clock Frequency:	20MHz
Write Cycle Time - Word, Page:	14ms
Memory Interface:	SPI
Voltage - Supply:	2.7 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TC)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.209", 5.30mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	AT45DB041

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Introduction

AT45DB041B-SU is a type of memory chip designed to store digital information. The chip is meant for applications that require reliable, non-volatile data storage. It is a Flash memory device with an Enhanced DataFlash architecture. The chip is often used in embedded systems, cellular phones, digital cameras and other devices that require reliable digital data storage.

Application Field

AT45DB041B-SU memory chips can be used in a wide variety of applications, including:

• Industrial Control. AT45DB041B-SU can be used to store critical data in industrial control systems, such as safety information, system log data, timer settings and more.
• Security Systems. AT45DB041B-SU can be used to store the data related to security systems, such as user passwords, access codes or personal identification data.
• Embedded Systems. AT45DB041B-SU can be used in embedded systems such as audio and video recorders, gaming systems, medical instruments and many more.
• Portable Electronic Devices. AT45DB041B-SU has a very low power consumption, making it suitable for use in devices that need to be powered on the go, such as cellular phones and digital cameras.

Working Principle

AT45DB041B-SU memory chips are based on the Enhanced DataFlash architecture. This architecture is composed of the following components:

• Page Buffer. This is a temporary storage area which holds a single page of data. A page in this case refers to a specific section of memory. It is a 512-byte area which can be written to or read from in a single transaction.
• Data Storage Array. This is a region of Flash memory which stores the actual data. This area is subdivided into pages, and data can be written to or read from it in a single transaction.
• Controller. This is a logic circuit which manages all the transactions between the page buffer, the data storage array and the host system. It is responsible for controlling the flow of data between the different components.

When a write operation is initiated, the data is first written to the page buffer. The data is then copied from the page buffer to the data storage array. The write operation is then considered complete.When a read operation is initiated, the controller first reads the data from the data storage array and stores it in the page buffer. The data can then be read from the page buffer. The read operation is then considered complete.The Enhanced DataFlash architecture used by AT45DB041B-SU is more efficient than earlier Flash memory architectures, as it allows for more transactions per second. This makes it more suitable for applications where frequent reads and writes are expected.

Conclusion

AT45DB041B-SU is a type of Flash memory chip designed for applications which require reliable, non-volatile digital data storage. It is based on the Enhanced DataFlash architecture, which allows for faster and more efficient transactions. The chip is suitable for use in a wide variety of applications, including industrial control systems, security systems, embedded systems and portable electronic devices.

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