AT24C64W-10SC

Write Cycle Time - Word, Page:	10ms
Base Part Number:	AT24C64
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.209", 5.30mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Voltage - Supply:	4.5 V ~ 5.5 V
Memory Interface:	I²C
Access Time:	900ns
Series:	--
Clock Frequency:	400kHz
Memory Size:	64Kb (8K x 8)
Technology:	EEPROM
Memory Format:	EEPROM
Memory Type:	Non-Volatile
Part Status:	Obsolete
Packaging:	Tube

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Introduction

In this article, we will delve into the AT24C64W-10SC application field and working principle to gain a better understanding of it’s use and purpose. The AT24C64W-10SC is a memory device that offers a scalable memory solution for a wide range of applications. AT24C64W-10SC can be used in a variety of applications, from industrial, medical, and automotive components to consumer electronics.

Memory Chip

AT24C64W-10SC is a 8-bit non-volatile, serial electrically erasable programmable memory device. It is organized as 8K x 8, meaning it can store 8K of data divided into 8 bits. The most significant bit is the 8th bit and least significant bit being the 1st bit. The AT24C64W-10SC consists of two blocks. The first block consists of 64 pages of data and is organized as 256 x 8 bits. Each page consists of 256 bytes which can be written or read individually and sequentially. The second block consists of 4 pages of data organized as 16 x 8 bits. These are used for higher-end applications to store keycodes, access codes, and other specialty information.

Data Interface

The AT24C64W-10SC has 2 data lines, Serial Data line (SDA) and Serial Clock line (SCL). The SDA line is used for bi-directional data communication between the memory chip and the supporting device, such as a microprocessor, microcontroller or system management IC. The SCL line is used to synchronize the communication between the chip and the supporting device.

Bus Protocol

The device supports various memory access modes, such as Sequential and Random. In sequential mode, the read and write operations are done in a sequential order. In random mode, the memory locations can be accessed in any given order. The communication is done using the I2C bus protocol. The I2C bus protocol is a two-wire, two-way communication protocol that enables data to be transferred between two devices. It is a master-slave protocol, and the AT24C64W-10SC is the slave device.

Voltage Specifications

The AT24C64W-10SC operates from a single +5.0V power supply. The operating voltage range of the device is 3V to 5.5V. It is electrically erasable programmable and requires 12V for erasure.

EEPROM Cell Structure

The AT24C64W-10SC has an EEPROM cell structure that consists of a floating gate with control gate over it. This structure enables single bit programming in a non-volatile memory device. The EEPROM cell can be rewritten many times without the loss of data. The cell has an unlimited erase/write cycle.

Packaging and Pin Configuration

The AT24C64W-10SC is available in an 8-pin SOIC package. The pin configuration is given in the figure below:

Conclusion

The AT24C64W-10SC is an 8-bit non-volatile, serial electrically erasable programmable memory device that can be used for a wide range of applications. It operates from a single +5.0V power supply and has an unlimited erase/write cycle. The device communicates through the I2C bus protocol, making it ideal for small space, low-power applications. The device is available in an 8-pin SOIC package, making it a cost-effective solution.

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