25LC1024-I/SM

Product Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - High-speed SPI interface - 1 Mbit (128K x 8) memory size - 1.8V to 5.5V operating voltage range - Industrial temperature range (-40°C to +85°C) - Small surface mount package (SOIC-8) - RoHS compliant

Package: SOIC-8 (Small Outline Integrated Circuit)

Essence: The 25LC1024-I/SM is a non-volatile serial EEPROM memory chip that provides reliable data storage in various electronic devices.

Packaging/Quantity: The 25LC1024-I/SM is available in tape and reel packaging, with 2,000 units per reel.

Specifications

• Memory Size: 1 Mbit (128K x 8)
• Operating Voltage Range: 1.8V to 5.5V
• Interface: SPI (Serial Peripheral Interface)
• Data Retention: > 200 years
• Write Endurance: 1,000,000 cycles
• Maximum Clock Frequency: 10 MHz
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The 25LC1024-I/SM has 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 8 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 4 │ 5 │ └───┴───┘

1. Chip Select (CS)
2. Serial Clock (SCK)
3. Master Input Slave Output (MISO)
4. Ground (GND)
5. Serial Data Input/Output (SDI/SDO)
6. Write Protect (WP)
7. Hold (HOLD)
8. Power Supply (VCC)

Functional Features

• Non-volatile memory: The 25LC1024-I/SM retains data even when power is removed.
• High-speed SPI interface: Enables fast and efficient data transfer.
• Low-power consumption: Ideal for battery-powered devices.
• Write protection: The WP pin can be used to protect the memory from accidental writes.
• Hold function: The HOLD pin allows pausing serial communication without losing data.

Advantages and Disadvantages

Advantages: - Reliable non-volatile memory storage - High-speed data transfer - Low-power consumption - Compact package size - Wide operating voltage range

Disadvantages: - Limited memory size (1 Mbit) - Requires an external microcontroller or host device for operation

Working Principles

The 25LC1024-I/SM utilizes a floating gate EEPROM technology, which allows for non-volatile data storage. It communicates with a microcontroller or host device through the SPI interface. The chip select (CS) pin is used to enable communication, while the serial clock (SCK) synchronizes data transfer. The serial data input/output (SDI/SDO) pin handles the bidirectional data exchange between the memory and the controller.

Detailed Application Field Plans

The 25LC1024-I/SM is widely used in various electronic devices that require reliable non-volatile memory storage. Some common application fields include:

1. Consumer Electronics: Used in smart TVs, set-top boxes, and audio/video equipment for storing configuration settings and user preferences.
2. Industrial Automation: Employed in industrial control systems, PLCs (Programmable Logic Controllers), and data loggers for storing critical data and program code.
3. Automotive Electronics: Integrated into automotive ECUs (Engine Control Units), infotainment systems, and instrument clusters for storing calibration data and vehicle settings.
4. Medical Devices: Utilized in medical equipment such as patient monitors and diagnostic devices for storing patient data and device configurations.

Detailed and Complete Alternative Models

1. 25LC512-I/SM: 512 Kbit (64K x 8) serial EEPROM memory with similar features and package.
2. 25AA1024-I/SM: 1 Mbit (128K x 8) serial EEPROM memory with an I2C interface.
3. 24LC1025-I/SM: 1 Mbit (128K x 8) serial EEPROM memory with a different pin configuration.

These alternative models offer similar functionality and can be considered as substitutes for the 25LC1024-I/SM depending on specific requirements.

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