AT25640AN-10SI-2.7-T

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - 256 Kb (32 K x 8) of electrically erasable programmable read-only memory (EEPROM) - High-speed SPI-compatible bus interface - Wide operating voltage range: 1.8V to 5.5V - Industrial temperature range: -40°C to +85°C

Package: SOIC (Small Outline Integrated Circuit)

Essence: The AT25640AN-10SI-2.7-T is a high-performance, low-power EEPROM memory chip that provides non-volatile storage for various applications.

Packaging/Quantity: The AT25640AN-10SI-2.7-T is typically sold in reels containing 2500 units per reel.

Specifications

• Memory Size: 256 Kb
• Organization: 32 K x 8 bits
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage Range: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 100 years
• Package Type: SOIC-8

Detailed Pin Configuration

The AT25640AN-10SI-2.7-T has an 8-pin Small Outline Integrated Circuit (SOIC) package. The pin configuration is as follows:

1. Chip Select (/CS)
2. Serial Clock (SCK)
3. Serial Data Input/Output (SI/O)
4. Ground (GND)
5. Write Protect (/WP)
6. Hold (/HOLD)
7. VCC (Power Supply)
8. Not Connected (NC)

Functional Features

• High-speed SPI bus interface allows for fast data transfer.
• Low-power CMOS technology ensures efficient operation and extended battery life.
• Write protection and hold functions provide additional control over memory operations.
• Wide operating voltage range enables compatibility with various systems.
• Data can be written, read, and erased at the byte or page level.

Advantages and Disadvantages

Advantages: - High-speed data transfer - Low power consumption - Wide operating voltage range - Long data retention period - Compact package size

Disadvantages: - Limited storage capacity compared to other memory technologies - Relatively higher cost per bit compared to larger memory chips

Working Principles

The AT25640AN-10SI-2.7-T utilizes EEPROM technology to store data. It employs a Serial Peripheral Interface (SPI) for communication with the host system. The chip operates by sending commands and data through the SPI bus, allowing for reading, writing, and erasing of memory contents. The low-power CMOS technology ensures efficient operation, while the non-volatile nature of EEPROM guarantees data retention even when power is removed.

Detailed Application Field Plans

The AT25640AN-10SI-2.7-T is widely used in various electronic devices and systems that require non-volatile memory storage. Some common application fields include:

1. Consumer Electronics:

   • Smartphones
   • Tablets
   • Digital cameras
   • Portable media players

2. Automotive:

   • Engine control units
   • Infotainment systems
   • Instrument clusters

3. Industrial Automation:

   • Programmable logic controllers (PLCs)
   • Human-machine interfaces (HMIs)
   • Data loggers

4. Medical Devices:

   • Patient monitoring systems
   • Medical imaging equipment
   • Diagnostic devices

Detailed and Complete Alternative Models

1. AT25080AN-10SI-2.7-T: 8 Kb (1 K x 8) Serial EEPROM, SOIC-8 package.
2. AT25160AN-10SI-2.7-T: 16 Kb (2 K x 8) Serial EEPROM, SOIC-8 package.
3. AT25320AN-10SI-2.7-T: 32 Kb (4 K x 8) Serial EEPROM, SOIC-8 package.
4. AT25256AN-10SI-2.7-T: 256 Kb (32 K x 8) Serial EEPROM, SOIC-8 package.

These alternative models offer different memory sizes to suit specific application requirements while maintaining compatibility with the same interface and package type.

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