AT24C32E-XHM-B

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AT24C32E-XHM-B is a two-wire serial EEPROM memory device, it is classified into a type of non–volatile electrically programmable read-only memory (EEPROM) whose contents are retained even when the power is switched off. The AT24C32E-XHM-B is designed to provide 1536–bit of memory organized into 32 pages of 8 bytes each, addressing 32K bit of memory. Few of the outstanding features of AT24C32E are Write protection, low–power standby mode, a write-protection pin, and “data polling” which provides an indication of write success.

The AT24C32E-XHM-B is, most commonly, used in applications which require low power consumption, reliable non-volatile storage, and fast write operation. This device is utilized in designing electronics items, industrial controls, remote controls, medical equipment, intelligent instrument, embedded systems and many more. One of the major advantage of this device is its compatibility, due to its low power consumption and two wire serial interface, allowing it to be easily connected via standard I2C bus with other microcontrollers.

Application Fields

As mentioned above, AT24C32E-XHM-B has been designed with a wide range of applications, specifically designed for low power consumption, memory storage requirements and fast write operations. Some of the common applications of the AT24C32E-XHM-B are as follows:

• Industrial controls
• Remote Controls
• Medical Equipment
• Intelligent Instruments
• Electronics Devices
• Embedded Systems

With such flexibility, this device is one of the most widely used memory devices in the world. The device is capable of helping users designing complex electronics items with full reliability.

Working Principles

The AT24C32E-XHM-B device operates using a two–wire serial interface. It contains a 1K x 8 SRAM data buffer, simplifying the write process to the arbitrary location in the main memory without unnecessary data output is required. During write operations, the data is continued to the EEPROM by I2C protocol, with commands recorded in the WR bit to control the write timing of write operations. After the write operation is finished, the device stays in standby mode to reduce power consumption.

The programming of the AT24C32E-XHM-B EEPROM can be considered as divided into two parts; the first part is the write cycle, and the second part is the page write cycle. During the write cycle from 0x00 to 0x07, if the address data reaches 0x08, an internal write cycle will be triggered up to 0x0F, and the programming is finished. The device also has a write protection pin, which when triggered, helps to protect its contents.

Thanks to the upper EEPROM automatic detection circuit, the internal main storage array can be accessible automatically, which is designed to make the access operations to the internal main storage array faster and more convenient. The device also has “data polling”, which helps indicate the status of write operation. Data on the poll can be seen on the SDA line.

Benefits of AT24C32E-XHM-B

The AT24C32E-XHM-B EEPROM offers various benefits that makes it stand out from other memory devices. These advantages include:

• Low–power standby mode, which helps to reduce the power consumption of the device.
• Reliability required for its applications, through the use of write protection.
• Fast write operation, with the internal SRAM data buffer that helps facilitate data from EEPROM.
• Compatibility with the various microcontrollers.
• Data polling provided to help indicate the status of write operations.
• Upper EEPROM automatic detection circuit, which helps to make the access operations faster and more convenient.

The AT24C32E-XHM-B can be considered as one of the most reliable memory devices used in a wide range of applications, due to its fast write operation, low–power standby mode, and write protection. Its compatibility with microcontrollers through the two–wire serial interface also contributes to the device’s reliability.

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