AT25256W-10SC-1.8

Product Overview

Category

AT25256W-10SC-1.8 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 memory: The AT25256W-10SC-1.8 retains stored data even when power is removed.
• High storage capacity: This chip has a storage capacity of 256 kilobits (32 kilobytes).
• Serial interface: It utilizes a serial communication protocol for data transfer.
• Low power consumption: The AT25256W-10SC-1.8 operates at low power levels, making it suitable for battery-powered devices.
• Wide operating voltage range: It can operate within a voltage range of 1.8V to 5.5V.
• Small package size: The chip is available in a small surface mount package.

Package and Quantity

The AT25256W-10SC-1.8 is typically packaged in a small outline integrated circuit (SOIC) package. It is commonly sold in reels or tubes containing multiple units.

Specifications

• Memory capacity: 256 kilobits (32 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating voltage: 1.8V - 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million write cycles
• Data retention: 100 years

Pin Configuration

The AT25256W-10SC-1.8 has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 8 │ └───┴───┘

Pin Description: 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): Used to input data into the chip. 4. Serial Data Output (SO): Outputs data from the chip during read operations. 5. Write Protect (WP): Allows write protection of the memory contents. 6. VCC: Power supply voltage. 7. Ground (GND): Ground reference for the chip. 8. Hold (HOLD): Used to pause serial communication temporarily.

Functional Features

• High-speed data transfer: The AT25256W-10SC-1.8 supports fast data transfer rates, allowing for efficient read and write operations.
• Flexible write protection: The chip provides a write protect feature that allows users to protect specific memory areas from being overwritten.
• Sequential and random access: It supports both sequential and random access to memory locations, providing flexibility in data retrieval.
• Software and hardware compatibility: The AT25256W-10SC-1.8 is compatible with various microcontrollers and can be easily integrated into existing systems.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• Small package size allows for space-efficient integration into electronic devices.
• Low power consumption makes it suitable for battery-powered applications.
• High-speed data transfer enables quick read and write operations.
• Write protect feature provides enhanced data security.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per kilobit compared to larger capacity EEPROMs.
• Susceptible to electromagnetic interference due to its small size.

Working Principles

The AT25256W-10SC-1.8 utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It stores information in a grid of memory cells that can be individually accessed and modified using the serial interface.

During write operations, data is sent to the chip through the Serial Data Input pin (SI) and clocked in using the Serial Clock pin (SCK). The data is then stored in the appropriate memory location. Reading data involves sending a read command and receiving the data through the Serial Data Output pin (SO).

The chip's internal circuitry manages the erase and program operations, ensuring reliable and accurate data storage.

Application Field Plans

The AT25256W-10SC-1.8 finds applications in various fields, including:

1. Embedded systems: Used for storing configuration settings, firmware updates, and user data in microcontroller-based systems.
2. Automotive electronics: Employed for storing critical data such as vehicle parameters, calibration values, and fault codes.
3. Industrial automation: Utilized for storing production data, machine settings, and system configurations.
4. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and gaming