AT25020AN-10SI-2.7-T

Product Overview

Category

AT25020AN-10SI-2.7-T 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 AT25020AN-10SI-2.7-T retains stored data even when power is removed.
• High endurance: It can withstand a large number of read/write cycles.
• Low power consumption: The chip operates at low voltage levels, making it suitable for battery-powered devices.
• Small form factor: The package size is compact, allowing for integration into space-constrained designs.
• Wide temperature range: The chip can operate reliably across a wide temperature range.

Package and Quantity

The AT25020AN-10SI-2.7-T is typically available in a surface-mount SOIC (Small Outline Integrated Circuit) package. It is supplied in reels or tubes, with a standard quantity of 2500 units per reel/tube.

Specifications

• Memory capacity: 2 Kbits (256 bytes)
• Operating voltage: 2.7V to 5.5V
• Interface: SPI (Serial Peripheral Interface)
• Maximum clock frequency: 10 MHz
• Write endurance: 1 million cycles
• Data retention: 100 years

Pin Configuration

The AT25020AN-10SI-2.7-T has 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 8 │ ├───┼───┤ │ 2 │ 7 │ ├───┼───┤ │ 3 │ 6 │ ├───┼───┤ │ 4 │ 5 │ └───┴───┘

Pin Description: 1. Chip Select (CS) 2. Serial Clock (SCK) 3. Serial Data Input/Output (SI/SO) 4. Ground (GND) 5. Write Protect (WP) 6. Hold (HOLD) 7. Vcc (Power Supply) 8. Not Connected (NC)

Functional Features

• Byte-level Read/Write: The AT25020AN-10SI-2.7-T allows individual bytes to be read from or written to the memory.
• Sequential Read: It supports sequential reading of multiple bytes, enabling efficient data retrieval.
• Software Protection: The chip provides write protection through the WP pin, preventing accidental modification of stored data.
• Hardware Hold: The HOLD pin allows pausing ongoing operations without losing data.
• Self-timed Programming: The chip automatically manages internal timing during write operations.

Advantages and Disadvantages

Advantages: - Compact size and low power consumption make it suitable for portable devices. - High endurance and long data retention ensure reliable performance over an extended period. - Easy integration with microcontrollers and other digital systems using the SPI interface.

Disadvantages: - Limited storage capacity compared to other memory technologies. - Slower write speed compared to some alternative models.

Working Principles

The AT25020AN-10SI-2.7-T utilizes EEPROM technology, which allows for electrically erasing and reprogramming specific memory locations. It employs a floating gate transistor structure to store charge, representing binary data as "0" or "1". The SPI interface facilitates communication between the chip and the controlling device, enabling read and write operations.

Application Field Plans

The AT25020AN-10SI-2.7-T finds applications in various fields, including: 1. Embedded systems: Used for storing configuration data, calibration values, and firmware updates. 2. Automotive electronics: Employed in vehicle control units for data logging and parameter storage. 3. Industrial automation: Utilized for storing device settings, production data, and event logs. 4. Consumer electronics: Integrated into devices like smartwatches, IoT devices, and audio equipment for data storage purposes.

Alternative Models

1. AT25040AN-10SI-2.7-T: Similar to AT25020AN-10SI-2.7-T but with double the memory capacity (4 Kbits).
2. AT25080AN-10SI-2.7-T: Offers 8 Kbits of memory capacity, suitable for applications requiring more storage space.
3. AT25160AN-10SI-2.7-T: Provides 16 Kbits of memory, ideal for larger-scale data storage requirements.

These alternative models offer increased memory capacity while maintaining compatibility with the same interface and package options as the AT25020AN-10SI