AT25020-10PC

Product Overview

Category

AT25020-10PC belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

This product is primarily used for non-volatile storage of small amounts 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: Data can be erased and reprogrammed electronically.
• Small form factor: The chip is compact and suitable for integration into space-constrained devices.
• Low power consumption: It operates efficiently with minimal power requirements.

Package

AT25020-10PC is available in a standard 8-pin DIP (Dual Inline Package) format.

Essence

The essence of AT25020-10PC lies in its ability to provide reliable and flexible non-volatile memory storage in electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of AT25020-10PC chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory capacity: 2 kilobits (256 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): Used to enable or disable the chip for communication.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Transfers data from the microcontroller to the chip.
4. Serial Data Output (SO): Transfers data from the chip to the microcontroller.
5. Write Protect (/WP): Allows or prevents write operations on the chip.
6. VCC: Power supply voltage.
7. Ground (GND): Common ground reference.
8. Hold (/HOLD): Pauses ongoing operations without resetting the chip.

Functional Features

• Byte-level Read and Write Operations: Allows reading and writing of individual bytes within the memory array.
• Sequential Read: Enables continuous reading of multiple bytes without requiring repeated address input.
• Software Protection: Provides a write protection mechanism to prevent accidental modification of stored data.
• Chip Erase: Allows erasing 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 various electronic devices.
• High write endurance ensures long-term reliability.
• Wide operating voltage range allows compatibility with different systems.
• Easy integration due to the widely used SPI interface.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower write speed compared to some alternative models.
• Vulnerable to electromagnetic interference, requiring proper shielding in sensitive applications.

Working Principles

AT25020-10PC utilizes EEPROM technology, which employs floating-gate transistors to store charge representing binary data. The stored charge can be electrically manipulated to erase or program the memory cells. The SPI interface facilitates communication between the microcontroller and the chip, enabling read and write operations.

Detailed Application Field Plans

AT25020-10PC finds applications in various fields, including: 1. Automotive electronics: Used for storing configuration data, mileage records, and fault codes. 2. Industrial automation: Employed for parameter storage, calibration data, and device identification. 3. Consumer electronics: Utilized in smart devices, wearables, and IoT applications for data storage.

Detailed and Complete Alternative Models

1. AT25040-10PC: Similar to AT25020-10PC but with double the memory capacity (4 kilobits).
2. AT25080-10PC: Offers 8 kilobits of memory capacity, suitable for applications requiring more storage.
3. AT25160-10PC: Provides 16 kilobits of memory, ideal for larger data storage requirements.

These alternative models offer increased memory capacity while maintaining similar characteristics and compatibility with the SPI interface.

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