AT24CSW020-UUM0B-T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Memory
• Characteristics:
  • Low-power operation
  • High reliability
  • Small package size
• Package: UDFN (Ultra-thin Dual Flat No-leads)
• Essence: Serial EEPROM (Electrically Erasable Programmable Read-Only Memory)
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Memory Size: 2 kilobits (256 bytes)
• Interface: I2C (Inter-Integrated Circuit)
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 100 years

Detailed Pin Configuration

The AT24CSW020-UUM0B-T has a total of 8 pins in the UDFN package: 1. VCC: Power supply voltage 2. GND: Ground reference 3. SDA: Serial Data Line for I2C communication 4. SCL: Serial Clock Line for I2C communication 5. WP: Write Protect pin for hardware protection 6. A0: Address bit 0 for device addressing 7. A1: Address bit 1 for device addressing 8. NC: No Connection (not internally connected)

Functional Features

• Byte and Page Write Operations: Allows individual byte or multiple bytes to be written at once.
• Sequential Read Operation: Enables sequential reading of data from consecutive memory locations.
• Software Write Protection: Provides software-controlled write protection to prevent accidental modification of stored data.
• Schmitt Trigger Inputs: Ensures reliable data transfer even in noisy environments.
• Self-timed Write Cycle: Automatically manages the timing of write operations, simplifying system integration.

Advantages

• Low Power Consumption: Ideal for battery-powered devices and energy-efficient applications.
• High Reliability: Offers robust data storage with a long data retention period and high endurance.
• Small Package Size: UDFN package allows for compact designs and space-saving on PCBs.
• Easy Integration: I2C interface and self-timed write cycle simplify system integration and programming.

Disadvantages

• Limited Memory Size: With only 2 kilobits of memory, it may not be suitable for applications requiring larger storage capacity.
• Limited Operating Temperature Range: The -40°C to +85°C range may not be suitable for extreme temperature environments.

Working Principles

The AT24CSW020-UUM0B-T is based on EEPROM technology, which allows for non-volatile storage of data. It utilizes an I2C interface for communication with the host microcontroller. The device operates by sending commands and data through the SDA and SCL lines. Write operations are managed by the internal circuitry, ensuring reliable and accurate data storage. The stored data can be read back sequentially or randomly as required.

Detailed Application Field Plans

The AT24CSW020-UUM0B-T is widely used in various electronic devices and systems, including but not limited to: - Consumer Electronics: Smartphones, tablets, digital cameras, portable media players. - Automotive: Infotainment systems, dashboard displays, keyless entry systems. - Industrial Control: Programmable logic controllers (PLCs), sensors, automation equipment. - Medical Devices: Patient monitoring systems, medical imaging equipment, diagnostic devices. - Internet of Things (IoT): Smart home devices, wearable technology, connected appliances.

Detailed and Complete Alternative Models

1. AT24CS01: 1 kilobit (128 bytes) EEPROM with similar features and package options.
2. AT24CS04: 4 kilobits (512 bytes) EEPROM with extended memory capacity.
3. AT24CS256: 256 kilobits (32 kilobytes) EEPROM for applications requiring larger storage.

(Note: These alternative models are provided as examples and may not cover all available options in the market.)

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