24LC21A-I/SN

Product Overview

Category

The 24LC21A-I/SN belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

It is used for non-volatile data storage in various electronic devices, such as microcontrollers, sensors, and communication modules.

Characteristics

• Non-volatile memory
• I2C interface
• Low power consumption
• Small form factor

Package

The 24LC21A-I/SN is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the 24LC21A-I/SN lies in its ability to store and retrieve data reliably in electronic systems.

Packaging/Quantity

It is typically sold in reels containing multiple units, with quantities varying based on manufacturer specifications.

Specifications

• Memory Size: 1 Kbit
• Interface: I2C
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Write Cycle Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 24LC21A-I/SN features an 8-pin SOIC package with the following pin configuration: 1. A0: Chip Address Input 2. A1: Chip Address Input 3. A2: Chip Address Input 4. VSS: Ground 5. SDA: Serial Data 6. SCL: Serial Clock 7. WP: Write Protect 8. VCC: Power Supply

Functional Features

• Byte and Page Write Modes
• Self-timed Write Cycle
• 128-byte Page Buffer
• Sequential Read Operation

Advantages

• Small form factor
• Low power consumption
• Reliable data retention
• Easy interfacing with microcontrollers

Disadvantages

• Limited storage capacity
• Slower write speeds compared to other memory technologies

Working Principles

The 24LC21A-I/SN operates by utilizing the I2C protocol to communicate with the host microcontroller. It stores and retrieves data through byte and page write operations, ensuring reliable non-volatile memory storage.

Detailed Application Field Plans

The 24LC21A-I/SN finds applications in various fields, including: - Embedded systems - IoT devices - Consumer electronics - Industrial automation

Detailed and Complete Alternative Models

Some alternative models to the 24LC21A-I/SN include: - 24LC22A-I/SN - 24LC32A-I/SN - 24LC64-I/SN

In conclusion, the 24LC21A-I/SN is a versatile EEPROM chip that offers reliable non-volatile data storage for a wide range of electronic applications.

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