24LC32AT-E/SN

Product Overview

Category

The 24LC32AT-E/SN belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Electrically erasable: The 24LC32AT-E/SN can be erased and reprogrammed electronically, making it convenient for updating stored data.
• Non-volatile: The chip retains its stored data even when power is removed.
• Low power consumption: It operates at low voltage levels, making it suitable for battery-powered devices.
• High endurance: The chip supports a high number of write/erase cycles, ensuring long-term reliability.
• Small form factor: The chip comes in a compact package, allowing for space-efficient integration into electronic circuits.

Package and Quantity

The 24LC32AT-E/SN is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Memory capacity: 32 kilobits (4 kilobytes)
• Organization: 256 pages, each consisting of 16 bytes
• Operating voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million write/erase cycles
• Data retention: Up to 200 years

Pin Configuration

The 24LC32AT-E/SN has the following pin configuration:

```

---

| | | 1 2 3 4| | 5 6 7 8| |___________|

1. A0: Address input bit 0
2. A1: Address input bit 1
3. A2: Address input bit 2
4. VSS: Ground
5. SDA: Serial data input/output
6. SCL: Serial clock input
7. WP: Write protect (optional)
8. VCC: Power supply ```

Functional Features

• I2C interface: The chip communicates using the I2C (Inter-Integrated Circuit) protocol, allowing for easy integration into I2C bus systems.
• Byte-level read/write operations: Data can be read from or written to the chip at the byte level, providing flexibility in accessing specific portions of memory.
• Hardware write protection: The optional write protect pin (WP) allows for hardware-based protection against accidental writes.

Advantages and Disadvantages

Advantages

• High endurance ensures long-term reliability.
• Low power consumption makes it suitable for battery-powered devices.
• Compact form factor enables space-efficient integration.
• I2C interface simplifies communication with other devices.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Slower write/erase speeds compared to some other memory types.

Working Principles

The 24LC32AT-E/SN utilizes a floating gate transistor structure to store data. When programming, an electric charge is applied to the floating gate, altering its electrical characteristics. This change determines whether the corresponding memory cell represents a logical "0" or "1". Erasing the chip involves removing the electric charge from the floating gates, resetting the memory cells to their initial state.

Detailed Application Field Plans

The 24LC32AT-E/SN finds applications in various fields, including: - Embedded systems: Used for storing configuration data, firmware updates, and user settings in microcontroller-based systems. - Automotive electronics: Employed for storing critical data, such as calibration values and fault codes in automotive control units. - Industrial automation: Utilized for storing parameters, calibration data, and event logs in programmable logic controllers (PLCs) and industrial sensors.

Detailed and Complete Alternative Models

Some alternative models to the 24LC32AT-E/SN include: - 24LC64: A similar EEPROM chip with double the memory capacity (64 kilobits). - 24LC256: An EEPROM chip with a larger memory capacity (256 kilobits) suitable for applications requiring more storage space. - 24AA32A: A compatible EEPROM chip from the same manufacturer, Microchip Technology, with identical specifications but a different package.

In conclusion, the 24LC32AT-E/SN is a versatile EEPROM chip offering non-volatile data storage, low power consumption, and high endurance. Its compact form factor and I2C interface make it suitable for various electronic devices across different industries. While it has limitations in terms of storage capacity and write/erase speeds, it provides reliable and flexible data storage solutions.