AT24C32D-XHM-B

Product Overview

Category

AT24C32D-XHM-B belongs to the category of EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

This chip is commonly used for non-volatile data storage in various electronic devices such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains even when power is removed.
• Electrically erasable and programmable: Data can be modified electronically without requiring physical removal.
• High storage capacity: The AT24C32D-XHM-B has a storage capacity of 32 kilobits (4 kilobytes).
• Low power consumption: It operates at low voltage and consumes minimal power.
• I2C interface: It uses the I2C (Inter-Integrated Circuit) protocol for communication.

Package

The AT24C32D-XHM-B is available in a small surface-mount package, which makes it suitable for compact electronic devices.

Essence

The essence of this chip lies in its ability to provide reliable and non-volatile data storage in a compact form factor.

Packaging/Quantity

The AT24C32D-XHM-B is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Storage Capacity: 32 kilobits (4 kilobytes)
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C (Two-wire Serial Interface)
• Write Cycle Endurance: 1 million cycles
• Data Retention: 100 years

Detailed Pin Configuration

The AT24C32D-XHM-B chip has a total of 8 pins, which are as follows:

1. VCC: Power supply voltage
2. GND: Ground reference
3. SDA: Serial Data Line (I2C)
4. SCL: Serial Clock Line (I2C)
5. WP: Write Protect (optional)
6. A0: Chip Address Bit 0 (for device addressing)
7. A1: Chip Address Bit 1 (for device addressing)
8. A2: Chip Address Bit 2 (for device addressing)

Functional Features

• Random Access: Allows reading and writing of data at any memory location.
• Byte-Level Read/Write: Enables individual byte-level access to the stored data.
• Page Write: Supports writing multiple bytes in a single operation, improving efficiency.
• Software Write Protection: Provides the option to protect specific memory areas from being overwritten.
• Hardware Write Protection: Allows the entire chip to be write-protected using the WP pin.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss.
• High storage capacity for various applications.
• Low power consumption prolongs battery life.
• Compact package size suitable for space-constrained designs.
• I2C interface enables easy integration with other devices.

Disadvantages

• Limited write cycle endurance may affect long-term usage.
• Relatively slower write speed compared to other memory technologies.
• Vulnerable to electromagnetic interference due to its small form factor.

Working Principles

The AT24C32D-XHM-B utilizes EEPROM technology, which allows for electrically erasing and programming data. It consists of an array of memory cells that can be individually addressed for read or write operations. The I2C interface facilitates communication between the chip and the controlling device, enabling seamless data transfer.

Detailed Application Field Plans

The AT24C32D-XHM-B finds applications in various fields, including but not limited to:

1. Embedded Systems: Used for storing configuration data, firmware updates, and user settings in microcontrollers.
2. Automotive Electronics: Employed for storing critical data such as mileage, vehicle identification, and calibration values.
3. Industrial Automation: Utilized for storing parameters, calibration data, and event logs in programmable logic controllers (PLCs).
4. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for storing user preferences and application data.

Detailed and Complete Alternative Models

1. AT24C02D-XHM-B: A lower-capacity variant with 2 kilobits (256 bytes) of storage.
2. AT24C64D-XHM-B: A higher-capacity variant with 64 kilobits (8 kilobytes) of storage.
3. AT24C128D-XHM-B: An even higher-capacity variant with 128 kilobits (16 kilobytes) of storage.

These alternative models offer different storage capacities to cater to various application requirements.

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