AT25640-10PI-2.7

Overview

Product Category

AT25640-10PI-2.7 belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

This product is primarily used for non-volatile data storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: The data stored in AT25640-10PI-2.7 remains intact even when power is removed.
• Electrically erasable and programmable: The memory can be erased and reprogrammed electrically, allowing for flexibility in data storage.
• High storage capacity: AT25640-10PI-2.7 has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: This chip operates at a low voltage and consumes minimal power during read and write operations.

Package and Quantity

AT25640-10PI-2.7 is available in a standard 8-pin DIP (Dual Inline Package) format. It is typically sold in packs of 25 units.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 100 years
• Write Endurance: 1 million cycles

Pin Configuration

The AT25640-10PI-2.7 chip has the following pin configuration:

┌───┬───┐ │ 1 │ 8 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 4 │ 5 │ └───┴───┘

1. Chip Select (CS): Used to enable or disable the chip for communication.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Master Input Slave Output (MISO): Transmits data from the chip to the microcontroller.
4. Ground (GND): Connected to the ground reference of the system.
5. Serial Data Input (SI): Receives data from the microcontroller.
6. Write Protect (WP): Allows write protection when connected to a logic low.
7. Serial Data Output (SO): Transmits data from the chip to the microcontroller.
8. Power Supply (VCC): Connected to the power source of the system.

Functional Features

• Byte and Page Write Operations: AT25640-10PI-2.7 supports both byte-level and page-level write operations, providing flexibility in data storage.
• Sequential Read: The chip allows sequential read operations, enabling efficient retrieval of stored data.
• Software Protection: It offers software-based write protection, preventing accidental modification of stored data.
• High-Speed Performance: AT25640-10PI-2.7 operates at high-speed, ensuring quick read and write operations.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data integrity even during power loss.
• Electrically erasable and programmable, allowing for easy updates and modifications.
• High storage capacity provides ample space for data storage requirements.
• Low power consumption makes it suitable for battery-powered devices.
• Compact package size enables integration into various electronic systems.

Disadvantages

• Limited endurance with a maximum of 1 million write cycles.
• Relatively slower write speed compared to other non-volatile memory technologies.
• Vulnerable to electromagnetic interference (EMI) due to its serial interface.

Working Principles

AT25640-10PI-2.7 utilizes the Serial Peripheral Interface (SPI) for communication with the microcontroller. It stores data in non-volatile memory cells, which can be electrically erased and reprogrammed. The chip operates by receiving commands and data from the microcontroller through the SPI interface. It then performs the requested read or write operations and transfers the data accordingly.

Application Field Plans

AT25640-10PI-2.7 finds applications in various fields, including: 1. Automotive Electronics: Used for storing configuration data, firmware updates, and vehicle-specific settings. 2. Industrial Automation: Employed for storing calibration data, system parameters, and user preferences in control systems. 3. Consumer Electronics: Utilized in devices like smart TVs, set-top boxes, and gaming consoles for storing user profiles, settings, and firmware updates. 4. Medical Devices: Used for storing patient data, device configurations, and firmware updates in medical equipment. 5. Internet of Things (IoT): Integrated into IoT devices for