AT25040A-10PI-1.8

Overview

Product Category

AT25040A-10PI-1.8 belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuits.

Use

This product is commonly used for non-volatile storage applications in various electronic devices, such as microcontrollers, computers, automotive systems, and consumer electronics.

Characteristics

• Non-volatile memory: The AT25040A-10PI-1.8 retains data even when power is removed.
• High reliability: It offers excellent data retention and endurance characteristics.
• Low power consumption: The device operates at low power levels, making it suitable for battery-powered applications.
• Small form factor: The package size is compact, enabling easy integration into space-constrained designs.
• Wide voltage range: The AT25040A-10PI-1.8 supports a voltage range of 1.8V to 5.5V, providing flexibility in different applications.

Package and Quantity

The AT25040A-10PI-1.8 is available in a standard 8-pin DIP (Dual Inline Package) format. It is typically sold in reels or tubes containing multiple units.

Specifications

• Memory capacity: 4 kilobits (512 bytes)
• Organization: 256 x 8 bits
• Interface: Serial Peripheral Interface (SPI)
• Operating voltage: 1.8V - 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million cycles
• Data retention: 100 years

Pin Configuration

The AT25040A-10PI-1.8 features an 8-pin DIP package with the following pin configuration:

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

Pin Description: 1. Chip Select (CS): Used to enable or disable the device for communication. 2. Serial Clock (SCK): Provides the clock signal for data transfer. 3. Master Input Slave Output (MISO): Transmits data from the device to the master. 4. Ground (GND): Common ground reference. 5. Serial Data Input (SI): Receives data from the master. 6. Write Protect (WP): Allows write protection of the memory array. 7. Serial Data Output (SO): Transmits data from the device to the master. 8. Power Supply (VCC): Positive power supply voltage.

Functional Features

• Byte-level Read and Write: The AT25040A-10PI-1.8 allows individual byte read and write operations, providing flexibility in data manipulation.
• Sequential Read: It supports sequential read operations, enabling efficient retrieval of consecutive data bytes.
• Software Protection: The device offers a write protect feature that can be enabled to prevent accidental modification of stored data.
• Hardware Write Protection: The WP pin can be used to permanently protect the memory array from being written.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for portable and battery-powered devices.
• High reliability ensures data integrity in critical applications.
• Wide operating voltage range allows compatibility with various systems.
• Easy integration into existing designs due to standard package format.
• Cost-effective solution for non-volatile storage requirements.

Disadvantages

• Limited memory capacity compared to other EEPROM options.
• Slower write speed compared to some competing technologies.
• Requires an external microcontroller or interface for communication.

Working Principles

The AT25040A-10PI-1.8 operates based on the principles of EEPROM technology. It utilizes a floating gate transistor structure to store and retrieve data. When data is written, charge is trapped in the floating gate, altering the transistor's behavior. This change can be detected during read operations, allowing the stored data to be retrieved.

Detailed Application Field Plans

The AT25040A-10PI-1.8 finds applications in various fields, including:

1. Automotive Systems: Used for storing configuration data, calibration parameters, and event logs in automotive electronic control units (ECUs).
2. Industrial Control Systems: Employed for non-volatile storage of system settings, user preferences, and firmware updates in industrial automation equipment.
3. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles to store user profiles, application data, and system configurations.
4. Medical Devices: Utilized for storing