CAT1021LI45

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Memory
• Characteristics: Low-power, Serial EEPROM
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Stores and retrieves data even when power is turned off
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on customer requirements

Specifications

• Memory Size: 1 kilobit (128 x 8 bits)
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 100 years
• Interface: I2C (Inter-Integrated Circuit) compatible

Detailed Pin Configuration

1. VCC: Power supply voltage
2. SDA: Serial Data Input/Output
3. SCL: Serial Clock Input
4. WP: Write Protect (optional)
5. GND: Ground
6. NC: No Connection
7. NC: No Connection
8. NC: No Connection

Functional Features

• Non-volatile memory: Retains data even without power
• Low-power consumption: Ideal for battery-powered devices
• I2C interface: Allows easy integration with microcontrollers
• Write protection: Optional write protect pin for added security
• High endurance: Can withstand frequent write operations
• Long data retention: Ensures data integrity over extended periods

Advantages

• Compact package size allows for space-efficient designs
• Wide operating voltage range enables compatibility with various systems
• Easy integration with microcontrollers simplifies system development
• High endurance and long data retention ensure reliable data storage
• Optional write protection enhances data security

Disadvantages

• Limited memory size may not be suitable for applications requiring larger storage capacity
• I2C interface may have slower data transfer rates compared to other interfaces
• Write protect pin adds complexity to the circuit design if not utilized

Working Principles

The CAT1021LI45 is a serial EEPROM that utilizes non-volatile memory technology. It stores data in a series of memory cells, which can be electrically programmed and erased. The integrated circuit communicates with a microcontroller or other devices through the I2C interface. When powered on, the CAT1021LI45 allows data to be read or written. Even when power is turned off, the stored data remains intact.

Detailed Application Field Plans

• Consumer electronics: Used in smart home devices, wearable technology, and portable audio players for storing configuration settings and user data.
• Automotive: Employed in automotive infotainment systems, instrument clusters, and electronic control units (ECUs) for storing calibration data and vehicle-specific information.
• Industrial automation: Utilized in programmable logic controllers (PLCs), sensors, and industrial control systems for storing configuration parameters and log data.
• Medical devices: Integrated into medical equipment such as patient monitors and diagnostic devices for storing patient data and device settings.

Detailed and Complete Alternative Models

• CAT1021WI25: 256-bit serial EEPROM with similar features but lower memory size.
• CAT1025LI30: 4 kilobit serial EEPROM with higher memory size and extended temperature range.
• CAT24C02WI-GT3: 2 kilobit serial EEPROM with additional write protection features.

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