AT25640W-10SI-2.7

Product Overview

Category

AT25640W-10SI-2.7 belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

This product is commonly used for storing small amounts of non-volatile data in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile memory: The data stored in AT25640W-10SI-2.7 remains intact even when power is removed.
• High storage capacity: This chip has a storage capacity of 256 kilobits (32 kilobytes).
• Serial interface: It utilizes a serial communication protocol for easy integration into electronic systems.
• Low power consumption: AT25640W-10SI-2.7 operates at a low voltage and consumes minimal power.
• Wide temperature range: It can operate reliably in temperatures ranging from -40°C to +85°C.

Package and Quantity

AT25640W-10SI-2.7 is available in a standard 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels containing multiple units.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Maximum Clock Frequency: 10 MHz
• Write Time: 5 ms (typical)
• Data Retention: 100 years (minimum)

Pin Configuration

The pin configuration of AT25640W-10SI-2.7 is as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | CS | Chip Select | | 2 | DO | Data Output | | 3 | WP | Write Protect | | 4 | VSS | Ground | | 5 | DI | Data Input | | 6 | CLK | Clock Input | | 7 | HOLD | Hold Input | | 8 | VCC | Supply Voltage |

Functional Features

• Byte and Page Write: AT25640W-10SI-2.7 supports both byte-level and page-level write operations, allowing for flexible data storage.
• Sequential Read: It enables sequential read operations, allowing efficient retrieval of stored data.
• Software Protection: The chip provides a write protection feature that can be enabled to prevent accidental modification of stored data.
• High Reliability: AT25640W-10SI-2.7 incorporates advanced error detection and correction mechanisms, ensuring reliable data storage.

Advantages

• Compact Size: The small form factor of this chip makes it suitable for space-constrained applications.
• Low Power Consumption: Its low power requirements make it ideal for battery-powered devices.
• Wide Temperature Range: The ability to operate in extreme temperature conditions enhances its versatility.
• Easy Integration: The serial interface simplifies the integration process into various electronic systems.

Disadvantages

• Limited Storage Capacity: While sufficient for many applications, the 32-kilobyte capacity may not be suitable for scenarios requiring larger data storage.
• Slower Write Speed: The write time of 5 ms may be considered slow for certain real-time applications.

Working Principles

AT25640W-10SI-2.7 utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It stores information in memory cells consisting of floating-gate transistors. When data needs to be written or erased, electrical charges are applied to the floating gates, altering their state and storing the desired information.

Application Field Plans

AT25640W-10SI-2.7 finds applications in various fields, including: 1. Automotive Electronics: Used for storing vehicle configuration data, mileage information, and other critical parameters. 2. Industrial Control Systems: Employed in programmable logic controllers (PLCs) and industrial automation equipment for storing program code and configuration settings. 3. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles to store user preferences, firmware updates, and system configurations.

Alternative Models

1. AT25640A-10PU-2.7: Similar to AT25640W-10SI-2.7 but available in a DIP (Dual Inline Package) format.
2. AT25DF321A-SH-T: A higher-capacity serial flash memory chip with 32 megabits (4 megabytes) of storage.

In conclusion, AT25640W-10SI-2.7 is a versatile Serial EEPROM chip offering non-volatile data storage, low power consumption, and a wide temperature range. Its compact size and easy integration make it suitable for various applications in automotive electronics, industrial control systems, and consumer electronics. While it has limitations in terms of storage capacity and write speed, alternative models are available to