25LC040-I/P

Product Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - 4Kbits of memory organized into 512 bytes - SPI compatible serial interface - Self-timed erase and write cycles - 1,000,000 erase/write cycles guaranteed - Data retention > 200 years - 2.5V to 5.5V operating voltage range

Package: DIP (Dual In-line Package)

Essence: The 25LC040-I/P is a non-volatile memory IC that provides reliable data storage in various electronic devices.

Packaging/Quantity: The 25LC040-I/P is available in a DIP package and is typically sold in quantities of one or more.

Specifications

• Memory Size: 4Kbits (512 bytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage Range: 2.5V to 5.5V
• Erase/Write Cycles: 1,000,000 guaranteed
• Data Retention: > 200 years
• Package Type: DIP
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 25LC040-I/P has a total of 8 pins:

1. Chip Select (CS) - Active low input used to enable/disable the device.
2. Serial Clock (SCK) - Input for synchronizing data transfer.
3. Serial Data Input (SI) - Input for shifting data into the device.
4. Serial Data Output (SO) - Output for shifting data out of the device.
5. Write Protect (WP) - Input used to protect the memory from accidental writes.
6. VCC - Power supply input (+2.5V to +5.5V).
7. VSS - Ground reference.
8. HOLD - Input used to pause serial communication.

Functional Features

• Non-volatile memory: The 25LC040-I/P retains data even when power is removed.
• Serial interface: It uses the SPI protocol for easy integration with microcontrollers and other devices.
• Self-timed erase and write cycles: Simplifies programming operations.
• Low-power consumption: Ideal for battery-powered applications.
• High endurance: Guaranteed 1,000,000 erase/write cycles.
• Wide operating voltage range: Can be used in various electronic systems.

Advantages and Disadvantages

Advantages: - Reliable non-volatile memory storage - Easy integration with SPI-compatible devices - Low-power consumption - High endurance - Wide operating voltage range

Disadvantages: - Limited memory size (4Kbits) - Requires external components for proper operation

Working Principles

The 25LC040-I/P utilizes a floating gate transistor technology to store data. When data needs to be written, an electrical charge is applied to the floating gate, altering its threshold voltage. This change in threshold voltage represents the stored data. During read operations, the threshold voltage is measured to determine the stored information.

Detailed Application Field Plans

The 25LC040-I/P can be used in various applications, including but not limited to: - Embedded systems - Industrial control systems - Automotive electronics - Consumer electronics - Medical devices - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 25LC040-I/P are: - AT25040A-10PU-2.7 (Atmel) - CAT24C04WI-GT3 (ON Semiconductor) - M95010-WMN6TP (STMicroelectronics) - FM24C04B-G (Cypress Semiconductor)

These alternative models provide non-volatile memory storage with similar capacity and interface options.

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