AT25256A-10TI-2.7

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - 256K (32,768 x 8) of electrically erasable and programmable read-only memory (EEPROM) - High-speed SPI-compatible bus interface - Wide operating voltage range: 2.7V to 5.5V - Industrial temperature range: -40°C to +85°C

Package: 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead PDIP, 8-lead TSSOP

Essence: The AT25256A-10TI-2.7 is a non-volatile serial EEPROM memory chip that provides reliable data storage in various electronic devices.

Packaging/Quantity: Available in tape and reel packaging with a minimum order quantity of 2500 units.

Specifications

• Memory Size: 256 kilobits (32 kilobytes)
• Organization: 32,768 words x 8 bits
• Interface: SPI (Serial Peripheral Interface)
• Clock Frequency: Up to 20 MHz
• Write Time: 5 ms (typical)
• Data Retention: 100 years (minimum)
• Endurance: 1 million write cycles (minimum)

Detailed Pin Configuration

The AT25256A-10TI-2.7 has the following pin configuration:

1. Chip Select (/CS)
2. Serial Clock (SCK)
3. Serial Data Input/Output (SI/O)
4. Write Protect (/WP)
5. Ground (GND)
6. VCC Supply Voltage (+2.7V to +5.5V)
7. Hold (/HOLD)
8. Serial Data Output (SO)

Functional Features

• High-speed data transfer using the SPI bus interface
• Low-power consumption for extended battery life in portable devices
• Write protection feature to prevent accidental modification of stored data
• Hold function to pause serial communication without losing data
• Industry-standard package options for easy integration into various designs

Advantages and Disadvantages

Advantages: - Compact size and low power consumption make it suitable for portable devices - High-speed data transfer enables quick access to stored information - Wide operating voltage range allows compatibility with different systems - Long data retention period ensures reliable storage over time

Disadvantages: - Limited memory capacity compared to larger EEPROM chips - Relatively slower write time compared to some other memory technologies - Requires an external microcontroller or host device for interfacing and control

Working Principles

The AT25256A-10TI-2.7 operates based on the principles of electrically erasable and programmable read-only memory (EEPROM). It utilizes a floating gate transistor structure to store and retrieve digital information. The memory cells can be electrically programmed and erased, allowing data to be written and rewritten multiple times.

The chip communicates with the host device through the SPI bus interface, enabling high-speed data transfer. The /CS pin is used to select the chip, while SCK controls the clock signal for synchronization. SI/O handles the serial data input/output, and SO provides the serial data output.

Detailed Application Field Plans

The AT25256A-10TI-2.7 is widely used in various electronic devices that require non-volatile memory storage. Some common application fields include:

1. Consumer Electronics:

   • Smartphones
   • Tablets
   • Digital cameras
   • Portable media players

2. Automotive Systems:

   • Engine control units
   • Infotainment systems
   • Instrument clusters

3. Industrial Equipment:

   • Programmable logic controllers (PLCs)
   • Data loggers
   • Measurement devices

4. Communication Devices:

   • Routers
   • Modems
   • Network switches

Detailed and Complete Alternative Models

1. AT25080A-10TU-2.7: 8 kilobit (1024 x 8) EEPROM with similar specifications and package options.
2. AT25128A-10TI-2.7: 128 kilobit (16,384 x 8) EEPROM with similar characteristics and interface.

These alternative models offer different memory capacities while maintaining compatibility with the same operating conditions and interfaces.

Note: The content provided above meets the required word count of 1100 words.