24LC64XT-I/ST Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	64Kb (8K x 8)
Clock Frequency:	400kHz
Write Cycle Time - Word, Page:	5ms
Access Time:	900ns
Memory Interface:	I²C
Voltage - Supply:	2.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	8-TSSOP
Base Part Number:	24LC64X

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Introduction
Performance plays an important role in today’s electronics devices, and with the rapid advancement in technology, higher performance is needed to optimize product performance and efficiency. And thus, memory devices are playing an increasing role, in making sure the products achieve their desired functionality.One such memory device is the 24LC64XT-I/ST, which is a 64K serial EEPROM from Microchip Technology Inc. It is specially designed for embedded system applications, and boasts high performance, low power, and robust design for harsh environments. In this article, we will discuss the application field and working principle of 24LC64XT-I/ST.

Application Field
24LC64XT-I/ST is used primarily in industrial and automotive embedded systems, due to its high-performance and low power characteristics. This device is also suitable for a wide array of low-end embedded systems such as home appliances, security and access control systems, automation and metering systems. Additionally, 24LC64XT-I/ST is also used in medical and healthcare applications where accurate and reliable data storage is needed.The low power of the 24LC64XT-I/ST also allows it to be used in battery-powered applications, such as medical and healthcare devices. In addition, it is also commonly used in automotive applications, such as preventing the ECU from tampering and theft, as well as providing data protection and secure configuration in body and engine control applications.

Working Principle
The 24LC64XT-I/ST consists of an 8-bit internally organized memory. It contains 44 blocks that are broken up into 8 16-byte pages. Each page is further divided into 8-byte segments, which are addressed separately.The device has a self-timed write cycle which uses two write cycles for each byte. This two cycle write process allows for smooth transitions at the byte boundary and increases the endurance of the device.The device also incorporates error detection in the form of both a cyclic redundancy check (CRC) and a parity check. This allows for the detection of incorrect programming due to any source, including brownout conditions and ESD damage.In terms of communication interface, the 24LC64XT-I/ST can be connected to the two-wire serial interface, which allows for fast data transfer across the device. It is also very convenient for interconnection with other peripherals, as it eliminates the need for (extra) wires and connections. It supports a current limit of 1.7mA during write operations, reducing power draw when programming large amounts of data.

Conclusion
The 24LC64XT-I/ST is a highly-specialized memory device designed for industrial, automotive, and embedded systems. Its robust design and low power characteristics mean that it can be used in a variety of applications, such as medical and healthcare devices, automotive control systems, and home appliances. It also has an efficient write cycle and error detection, which further improve its reliability and performance.

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