24LC128T-I/ST14

Product Overview

Category

The 24LC128T-I/ST14 belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This chip is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• High storage capacity: The 24LC128T-I/ST14 has a storage capacity of 128 kilobits (16 kilobytes).
• Low power consumption: It operates at low voltage and consumes minimal power.
• I2C interface: The chip communicates with the host device using the I2C protocol.

Package

The 24LC128T-I/ST14 is available in a small outline transistor (SOT-23) package.

Essence

The essence of this chip lies in its ability to provide reliable and non-volatile data storage in a compact form factor.

Packaging/Quantity

The 24LC128T-I/ST14 is typically packaged in reels or tubes, with a quantity of 3,000 units per reel or 100 units per tube.

Specifications

• Memory Capacity: 128 kilobits (16 kilobytes)
• Interface: I2C (Inter-Integrated Circuit)
• Supply Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 24LC128T-I/ST14 has a total of 8 pins, which are assigned specific functions:

1. VCC: Power supply voltage input
2. SDA: Serial data line for I2C communication
3. SCL: Serial clock line for I2C communication
4. WP: Write-protect pin for hardware protection
5. A0: Address bit 0 for device addressing
6. A1: Address bit 1 for device addressing
7. A2: Address bit 2 for device addressing
8. GND: Ground reference

Functional Features

• Random access: Allows reading and writing of specific memory locations.
• Byte-level operations: Supports individual byte read and write operations.
• Page write mode: Enables faster writing of multiple bytes within a page.
• Software write protection: Provides software-controlled write protection for specific memory areas.
• Sequential read mode: Facilitates continuous reading of multiple memory locations.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even during power loss.
• Compact form factor: Small package size allows integration into space-constrained devices.
• Low power consumption: Ideal for battery-powered applications.
• High endurance: Can withstand frequent write cycles without degradation.
• I2C interface: Widely supported and easy to integrate into existing systems.

Disadvantages

• Limited storage capacity: May not be suitable for applications requiring larger memory sizes.
• Relatively slower write speed compared to other memory technologies.
• Vulnerable to electromagnetic interference (EMI) due to its small package size.

Working Principles

The 24LC128T-I/ST14 utilizes electrically erasable programmable read-only memory (EEPROM) technology. It consists of a grid of memory cells, each capable of storing one bit of information. The chip communicates with the host device using the I2C protocol, allowing for easy integration into various systems. When data needs to be stored or retrieved, the chip follows the instructions received from the host device and performs the necessary read or write operations.

Detailed Application Field Plans

The 24LC128T-I/ST14 finds applications in a wide range of electronic devices, including but not limited to: - Microcontrollers - Computers - Consumer electronics (e.g., smartphones, tablets, digital cameras) - Automotive electronics - Industrial control systems - Medical devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 24LC128T-I/ST14 include: - AT24C128: Manufactured by Atmel Corporation - CAT24C128: Manufactured by ON Semiconductor - M24C128: Manufactured by STMicroelectronics

These alternative models provide comparable storage capacity, interface compatibility, and features, making them suitable replacements for the 24LC128T-I/ST14 in various applications.

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