AT24C64D-XHM-T

Product Overview

Category

AT24C64D-XHM-T belongs to the category of EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

This product is primarily 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: Data can be erased and reprogrammed electronically.
• High storage capacity: The AT24C64D-XHM-T has a capacity of 64 kilobits (8 kilobytes).
• Low power consumption: It operates at low voltage and consumes minimal power.
• I2C interface: The chip communicates using the I2C (Inter-Integrated Circuit) protocol.

Package

The AT24C64D-XHM-T is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in a compact and low-power package.

Packaging/Quantity

The AT24C64D-XHM-T is typically packaged in reels containing 2500 units.

Specifications

• Capacity: 64 kilobits (8 kilobytes)
• Interface: I2C
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Cycle Endurance: 1 million cycles
• Data Retention: 100 years

Detailed Pin Configuration

The AT24C64D-XHM-T has the following pin configuration:

1. A0: Chip Address Input
2. A1: Chip Address Input
3. A2: Chip Address Input
4. GND: Ground
5. SDA: Serial Data Input/Output
6. SCL: Serial Clock Input
7. WP: Write Protect
8. VCC: Power Supply

Functional Features

• Random access: Allows reading and writing data at any memory location.
• Page write mode: Supports writing multiple bytes in a single operation.
• Software write protection: The WP pin can be used to protect the memory from accidental writes.
• Hardware write protection: The chip supports an additional hardware write protection mechanism.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss.
• High storage capacity for various applications.
• Low power consumption extends battery life.
• Compact package size allows integration into small devices.
• I2C interface enables easy communication 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 non-shielded package.

Working Principles

The AT24C64D-XHM-T utilizes EEPROM technology, which stores data using electrically isolated floating-gate transistors. When data needs to be written, a high voltage is applied to the gate, allowing electrons to tunnel through the insulating layer and modify the charge on the floating gate. Reading data involves sensing the charge level on the floating gate. The I2C interface facilitates communication between the chip and the controlling device.

Detailed Application Field Plans

The AT24C64D-XHM-T finds applications in various fields, including: 1. Embedded systems: Used for storing configuration data, firmware updates, and user settings. 2. Automotive electronics: Stores critical data like mileage, calibration values, and security information. 3. Industrial automation: Enables data logging, parameter storage, and system configuration. 4. Consumer electronics: Utilized in devices like smart TVs, set-top boxes, and gaming consoles for data storage.

Detailed and Complete Alternative Models

1. AT24C32D-XHM-T: A lower capacity variant with 32 kilobits (4 kilobytes) of storage.
2. AT24C128D-XHM-T: A higher capacity variant with 128 kilobits (16 kilobytes) of storage.
3. AT24C256D-XHM-T: An even higher capacity variant with 256 kilobits (32 kilobytes) of storage.

These alternative models provide options for different storage requirements while maintaining similar functionality and characteristics.

In conclusion, the AT24C64D-XHM-T is a versatile EEPROM chip that offers reliable non-volatile data storage in various electronic applications. Its high capacity, low power consumption, and compact package make it an ideal choice for many embedded systems and consumer electronics.