25LC320A-E/MS

Product Overview

Category: Integrated Circuit (IC)

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 available

Package: MSOP (Mini Small Outline Package)

Essence: The 25LC320A-E/MS is a non-volatile memory IC that provides reliable storage of digital information. It offers a compact form factor and low power consumption, making it suitable for various applications.

Packaging/Quantity: The 25LC320A-E/MS is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Memory Size: 32 kilobits (4 kilobytes)
• Organization: 4096 bytes x 8 bits
• Interface: SPI (Serial Peripheral Interface)
• Supply Voltage: 2.5V - 5.5V
• Maximum Clock Frequency: 10 MHz
• Write Time: 3 ms (typical)
• Erase Time: 5 ms (typical)
• Data Retention: 100 years (minimum)
• Endurance: 1,000,000 erase/write cycles

Detailed Pin Configuration

The 25LC320A-E/MS has a total of 8 pins:

1. Chip Select (CS) - Input pin used to enable/disable the device.
2. Serial Clock (SCK) - Input pin for clock signal during data transfer.
3. Serial Data Input (SI) - Input pin for receiving data from the master device.
4. Serial Data Output (SO) - Output pin for transmitting data to the master device.
5. Write Protect (WP) - Input pin used to protect the memory from accidental writes.
6. VCC - Power supply pin (2.5V - 5.5V).
7. Ground (GND) - Ground reference pin.
8. Hold (HOLD) - Input pin used to pause serial communication.

Functional Features

• Non-volatile storage: The 25LC320A-E/MS retains data even when power is disconnected.
• SPI compatibility: It supports a widely-used serial interface for easy integration with microcontrollers and other devices.
• Self-timed erase and write cycles: The IC manages the timing of erase and write operations, simplifying the control process.
• Power-on/off data protection: The memory content remains intact during power transitions.
• High endurance and data retention: With 1,000,000 erase/write cycles and 100-year data retention, it ensures long-term reliability.
• Industrial temperature range: The IC operates reliably in harsh environments with temperatures ranging from -40°C to +85°C.

Advantages and Disadvantages

Advantages: - Compact size and low power consumption - Easy integration with microcontrollers - High endurance and data retention - Wide operating temperature range

Disadvantages: - Limited memory capacity (32 kilobits)

Working Principles

The 25LC320A-E/MS utilizes non-volatile memory technology to store digital information. It employs an SPI-compatible serial interface for communication with external devices. The IC features self-timed erase and write cycles, ensuring reliable data storage. Additionally, it incorporates power-on/off data protection mechanisms to prevent data loss during power transitions.

Detailed Application Field Plans

The 25LC320A-E/MS is commonly used in various applications, including but not limited to: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Communication equipment

In consumer electronics, it can be utilized for storing configuration settings, user preferences, and firmware updates. In industrial automation, the IC can store calibration data, device parameters, and event logs. Automotive systems can benefit from its use in storing vehicle-specific data, such as mileage and diagnostic information. Medical devices can utilize it for storing patient data and device settings. Communication equipment can employ it for storing network configurations and encryption keys.

Detailed and Complete Alternative Models

• 25LC640A-E/MS: Similar to the 25LC320A-E/MS, but with double the memory capacity (64 kilobits).
• 25AA320A-E/MS: A smaller variant with the same memory capacity (32 kilobits), but without the self-timed erase and write cycles feature.
• 25LC320A-I/SN: Lead-free version of the 25LC320A-E/MS, available in a different package (SOIC).

These alternative models offer options