Encyclopedia Entry: 25A512T-I/ST

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Memory
• Characteristics: High capacity, Serial EEPROM
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Reliable data storage solution
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

The 25A512T-I/ST is a serial EEPROM IC with a capacity of 512 kilobits (64 kilobytes). It operates on a supply voltage range of 1.7V to 5.5V and supports a wide temperature range from -40°C to +85°C. The IC utilizes the I2C interface for communication and offers a maximum clock frequency of 1 MHz.

Detailed Pin Configuration

The 25A512T-I/ST features an 8-pin SOIC package with the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VCC | Power Supply Voltage | | 2 | SDA | Serial Data Input/Output | | 3 | SCL | Serial Clock Input | | 4 | WP | Write Protect | | 5 | GND | Ground | | 6 | NC | No Connection | | 7 | NC | No Connection | | 8 | NC | No Connection |

Functional Features

• Non-volatile memory: Retains data even when power is disconnected.
• High capacity: Offers 512 kilobits of storage space.
• Serial interface: Utilizes the I2C protocol for easy integration.
• Low power consumption: Operates efficiently with a wide supply voltage range.
• Write protection: Includes a write protect pin for data security.

Advantages and Disadvantages

Advantages: - Reliable data storage solution. - Compact package size for space-constrained applications. - Low power consumption extends battery life. - Easy integration with I2C interface.

Disadvantages: - Limited storage capacity compared to other memory options. - Slower write speeds compared to parallel EEPROMs.

Working Principles

The 25A512T-I/ST is based on Electrically Erasable Programmable Read-Only Memory (EEPROM) technology. It stores data by trapping electric charges within a floating gate structure. The stored charges represent binary information, which can be read or modified through the I2C interface. The IC utilizes a combination of electrical signals and voltage levels to perform read, write, and erase operations.

Detailed Application Field Plans

The 25A512T-I/ST is commonly used in various electronic devices and systems that require non-volatile memory for data storage. Some potential application fields include: - Consumer electronics: Smartphones, tablets, digital cameras. - Automotive: Infotainment systems, engine control units. - Industrial automation: Programmable logic controllers, sensors. - Medical devices: Patient monitoring systems, diagnostic equipment.

Detailed and Complete Alternative Models

• 25AA512 - Similar specifications, but with a different package (8-pin PDIP).
• 25LC512 - SPI interface alternative with similar capacity and characteristics.
• AT24C512 - I2C-compatible EEPROM with comparable capacity and features.

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