AT25040-10PC

Product Overview

Category

AT25040-10PC belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuits.

Use

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

Characteristics

• Non-volatile memory: The stored data remains intact even when power is removed.
• Electrically erasable and programmable: Allows for easy modification of stored data.
• Low power consumption: Operates efficiently with minimal power requirements.
• High reliability: Provides stable and reliable data storage.
• Small form factor: Compact size enables integration into space-constrained designs.

Package

AT25040-10PC is available in a standard 8-pin DIP (Dual Inline Package) format.

Essence

The essence of AT25040-10PC lies in its ability to provide reliable and flexible non-volatile data storage in electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Memory capacity: 4 kilobits (512 bytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating voltage: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million write cycles
• Data retention: 100 years

Detailed Pin Configuration

1. Chip Select (/CS): Enables communication with the device.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Transfers data from the microcontroller to the device.
4. Serial Data Output (SO): Transfers data from the device to the microcontroller.
5. Write Protect (/WP): Protects the memory from accidental writes.
6. VCC: Power supply voltage.
7. Ground (GND): Common ground reference.
8. Hold (/HOLD): Suspends ongoing operations temporarily.

Functional Features

• Byte-level Read/Write: Allows individual byte access for efficient data manipulation.
• Sequential Read: Enables continuous reading of multiple bytes without readdressing.
• Software Protection: Provides write protection to prevent unauthorized modifications.
• Hardware Protection: Supports hardware write protection using the /WP pin.
• Chip Erase: Allows erasing of the entire memory array in a single operation.
• Write Enable Latch: Ensures proper data programming by requiring a specific sequence of commands.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for portable devices.
• High reliability ensures data integrity in critical applications.
• Flexible interface allows easy integration with various microcontrollers.
• Wide operating voltage range enables compatibility with different systems.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower write speeds compared to some alternatives.
• Susceptible to electromagnetic interference due to its serial nature.

Working Principles

AT25040-10PC utilizes EEPROM technology, which stores data by trapping electric charges within floating gate transistors. When a byte is written, an electrical charge is applied to the floating gate, altering its threshold voltage. This change determines whether the transistor represents a logical 0 or 1. Reading involves sensing the threshold voltage to retrieve the stored data.

Detailed Application Field Plans

AT25040-10PC finds applications in various fields, including: 1. Automotive electronics: Used for storing configuration data and vehicle parameters. 2. Industrial automation: Enables non-volatile storage of calibration settings and system parameters. 3. Consumer electronics: Utilized for firmware storage in devices like smart TVs and gaming consoles. 4. Medical devices: Stores patient data, device settings, and firmware updates. 5. IoT devices: Provides non-volatile memory for sensor data logging and configuration storage.

Detailed and Complete Alternative Models

1. AT25080A-10PU: 8 kilobit (1 kilobyte) capacity, SPI interface, wider operating temperature range (-40°C to +125°C).
2. AT25160N-10SI-2.7: 16 kilobit (2 kilobyte) capacity, SPI interface, lower operating voltage (2.7V to 3.6V), smaller package size.

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