AT25040-10PI-2.7

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - 4K (4096) bits of EEPROM memory - 2-wire serial interface - Wide operating voltage range: 1.8V to 5.5V - High-speed clock frequency: 20 MHz - Write protect pin for hardware data protection - Self-timed write cycle with auto-erase - 32-byte page write mode for faster programming - More than 1 million erase/write cycles - Data retention: 100 years

Package: PDIP (Plastic Dual In-line Package)

Essence: The AT25040-10PI-2.7 is a non-volatile serial EEPROM memory IC that provides reliable and low-power storage for various applications.

Packaging/Quantity: The AT25040-10PI-2.7 is available in a PDIP package and is typically sold in reels or tubes containing multiple units.

Specifications

• Memory Size: 4K bits (512 bytes)
• Interface: 2-wire serial (I2C-compatible)
• Operating Voltage: 1.8V to 5.5V
• Clock Frequency: Up to 20 MHz
• Write Protect Pin: Yes
• Write Cycle Time: 5 ms (typical)
• Erase/Write Cycles: >1 million
• Data Retention: 100 years
• Package Type: PDIP
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT25040-10PI-2.7 has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 8 │ └───┴───┘

1. VCC: Power supply voltage (1.8V to 5.5V)
2. SDA: Serial data input/output pin
3. SCL: Serial clock input pin
4. WP: Write protect pin (active low)
5. NC: No connection
6. GND: Ground
7. NC: No connection
8. NC: No connection

Functional Features

• Non-volatile memory: The AT25040-10PI-2.7 retains data even when power is disconnected.
• Serial interface: It uses a 2-wire serial interface, making it easy to integrate into various systems.
• Low-power consumption: The IC operates on low power, making it suitable for battery-powered devices.
• Hardware data protection: The write protect pin allows for hardware-based data protection.
• Self-timed write cycle: The IC performs self-timed write cycles with auto-erase, simplifying the programming process.
• Page write mode: The 32-byte page write mode enables faster programming by allowing multiple bytes to be written at once.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention even during power loss. - Wide operating voltage range allows compatibility with various systems. - High-speed clock frequency enables fast data transfer. - Write protect pin provides additional data security. - Self-timed write cycle and page write mode enhance programming efficiency.

Disadvantages: - Limited memory size (4K bits) may not be sufficient for certain applications. - PDIP package may not be suitable for space-constrained designs. - Temperature range (-40°C to +85°C) may not cover extreme environments.

Working Principles

The AT25040-10PI-2.7 utilizes non-volatile EEPROM technology to store and retrieve data. It communicates with the host system through a 2-wire serial interface (SDA and SCL pins). The IC operates on an operating voltage between 1.8V and 5.5V and supports clock frequencies up to 20 MHz.

To write data, the IC performs self-timed write cycles with auto-erase. The write protect pin can be used to prevent accidental modification of stored data. The 32-byte page write mode allows for faster programming by enabling multiple bytes to be written at once.

During operation, the AT25040-10PI-2.7 consumes low power, making it suitable for battery-powered devices. It also offers high reliability with over 1 million erase/write cycles and data retention of up to 100 years.

Detailed Application Field Plans

The AT25040-10PI-2.7 is widely used in various applications that require non-volatile memory storage, such as: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Communication equipment

In consumer electronics, it can be utilized for storing configuration settings, user preferences,