AT25256-10PI-2.7

Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Serial EEPROM Memory
• Characteristics:
  • Low-power CMOS technology
  • High-speed performance
  • Wide voltage range
  • Extended temperature range
• Package: PDIP (Plastic Dual In-line Package)
• Essence: The AT25256-10PI-2.7 is a 256K-bit (32K x 8) electrically erasable programmable read-only memory (EEPROM) designed for use in various electronic devices.
• Packaging/Quantity: Available in tubes or tape and reel packaging, with quantities varying based on customer requirements.

Specifications

• Memory Size: 256K bits (32K x 8)
• Operating Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: SPI (Serial Peripheral Interface)
• Write Time: 5ms (typical)
• Data Retention: 100 years (minimum)

Pin Configuration

The AT25256-10PI-2.7 has a total of 8 pins, which are assigned specific functions as follows:

| Pin Number | Name | Function | |------------|------|----------| | 1 | CS | Chip Select (active low) | | 2 | DO | Data Output | | 3 | WP | Write Protect (active low) | | 4 | GND | Ground | | 5 | DI | Data Input | | 6 | CLK | Clock Input | | 7 | NC | No Connection | | 8 | VCC | Power Supply |

Functional Features

• High-speed SPI interface for fast data transfer.
• Byte and page-level write operations for flexible data storage.
• Software and hardware write protection options to prevent accidental modification of stored data.
• Low-power consumption, making it suitable for battery-powered devices.
• Reliable data retention, ensuring long-term storage of critical information.

Advantages

• Compact size and low power consumption make it ideal for portable electronic devices.
• Wide operating voltage range allows compatibility with various systems.
• High-speed performance enables quick data access and transfer.
• Extended temperature range ensures reliable operation in harsh environments.
• Flexible write protection options provide enhanced security for stored data.

Disadvantages

• Limited storage capacity compared to larger EEPROMs or other memory technologies.
• Requires an external microcontroller or host device for interfacing and control.

Working Principles

The AT25256-10PI-2.7 operates based on the principles of electrically erasable programmable read-only memory (EEPROM). It utilizes a floating gate transistor structure to store and retrieve digital data. The SPI interface facilitates communication between the memory and the controlling device, enabling read and write operations.

Detailed Application Field Plans

The AT25256-10PI-2.7 is widely used in various applications, including but not limited to: - Consumer electronics - Automotive systems - Industrial automation - Medical devices - Communication equipment

Alternative Models

• AT25080A-10PU-2.7: 8K-bit (1K x 8) EEPROM with similar specifications.
• AT25128B-SSHL-T: 128K-bit (16K x 8) EEPROM with extended temperature range.
• AT25320A-10TU-2.7: 32K-bit (4K x 8) EEPROM with higher endurance.

These alternative models offer different memory sizes and features, allowing users to choose the most suitable option for their specific requirements.

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