25LC320T-I/SN

Product Overview

Category: Integrated Circuits (ICs)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - 32K x 8-bit organization - SPI compatible serial interface - Self-timed erase and write cycles - Power-on/off data protection - 1,000,000 erase/write cycles endurance - 100-year data retention - Industrial temperature range (-40°C to +85°C) - Lead-free package options

Package: SOIC (Small Outline Integrated Circuit)

Essence: The 25LC320T-I/SN is a non-volatile serial EEPROM memory chip that provides reliable data storage in various electronic devices. It offers low-power consumption, high endurance, and long-term data retention.

Packaging/Quantity: The 25LC320T-I/SN is available in tape and reel packaging with 2,500 units per reel.

Specifications

• Memory Size: 32 kilobits (4 kilobytes)
• Organization: 4,096 bytes x 8 bits
• Interface: Serial Peripheral Interface (SPI)
• Supply Voltage: 2.5V - 5.5V
• Maximum Clock Frequency: 10 MHz
• Erase/Write Endurance: 1,000,000 cycles
• Data Retention: 100 years
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 25LC320T-I/SN has an 8-pin SOIC package with the following pin configuration:

1. Chip Select (/CS) - Input
2. Serial Clock (SCK) - Input
3. Serial Data Input/Output (SI/O) - Bi-directional
4. Ground (GND) - Power supply ground
5. Serial Data Output (SO) - Output
6. Write Protect (/WP) - Input
7. Hold (/HOLD) - Input
8. Power Supply (VCC) - Power supply voltage

Functional Features

• Self-timed erase and write cycles: The chip manages the timing of erase and write operations, simplifying the interface requirements.
• Power-on/off data protection: The memory content is protected during power transitions, ensuring data integrity.
• High endurance and data retention: The EEPROM can withstand 1,000,000 erase/write cycles and retain data for up to 100 years.
• Wide operating temperature range: Suitable for industrial applications with a temperature range of -40°C to +85°C.

Advantages and Disadvantages

Advantages: - Low-power consumption - Compact package size - High endurance and data retention - Easy integration with SPI interface - Reliable performance in harsh environments

Disadvantages: - Limited storage capacity (32 kilobits) - Slower write speed compared to some other memory technologies

Working Principles

The 25LC320T-I/SN utilizes non-volatile memory technology to store data. It employs an SPI-compatible serial interface for communication with the host device. The chip supports self-timed erase and write cycles, ensuring efficient and reliable data storage. Power-on/off data protection safeguards the memory content during power transitions, preventing data corruption. The EEPROM's low-power CMOS technology enables energy-efficient operation.

Detailed Application Field Plans

The 25LC320T-I/SN finds application in various electronic devices that require non-volatile memory storage. Some potential fields of use include: - Consumer electronics (e.g., smart TVs, set-top boxes) - Industrial automation systems - Automotive electronics - Medical devices - Internet of Things (IoT) devices - Communication equipment

Detailed and Complete Alternative Models

• 25LC640-I/SN: 64 kilobits (8 kilobytes) memory size, similar features and package as 25LC320T-I/SN.
• 25AA1024-I/MS: 1 megabit (128 kilobytes) memory size, SPI interface, surface-mount package.

These alternative models offer different memory capacities while maintaining compatibility with the SPI interface and sharing similar characteristics to the 25LC320T-I/SN.

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