DS28E15P+T

Product Overview

• Category: Integrated Circuit
• Use: Communication and Security
• Characteristics: High-performance, Low-power, Secure
• Package: 8-pin SOIC
• Essence: Serial 1-Wire EEPROM
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Memory Size: 1Kb (128 bytes)
• Operating Voltage: 2.8V to 5.25V
• Data Transfer Speed: Up to 100kbps
• Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 40 years

Pin Configuration

The DS28E15P+T has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VCC | Power Supply | | 2 | GND | Ground | | 3 | SDA | Serial Data Line | | 4 | SCL | Serial Clock Line | | 5 | A0 | Address Bit 0 | | 6 | A1 | Address Bit 1 | | 7 | A2 | Address Bit 2 | | 8 | NC | No Connection |

Functional Features

• Single-contact 1-Wire interface for communication and power
• Unique 64-bit ROM code for device identification
• 1Kb of non-volatile EEPROM memory for data storage
• Overdrive mode for faster data transfer
• Programmable write protection for enhanced security
• Strong pull-up capability for long-distance communication

Advantages and Disadvantages

Advantages

• Simple and cost-effective communication interface
• Low power consumption for extended battery life
• Secure data storage with write protection feature
• High reliability and long-term data retention
• Flexible addressing options for multiple devices

Disadvantages

• Limited memory capacity compared to other EEPROMs
• Slower data transfer speed compared to some interfaces
• Requires additional components for 1-Wire communication

Working Principles

The DS28E15P+T is based on the 1-Wire communication protocol, which allows data transfer and power delivery through a single contact. It utilizes a unique 64-bit ROM code to identify each device on the bus. The integrated EEPROM memory provides non-volatile storage for critical data.

To communicate with the DS28E15P+T, the master device sends commands and data over the serial data line (SDA) while controlling the serial clock line (SCL). The device responds accordingly, allowing read and write operations. The strong pull-up capability ensures reliable communication even over long distances.

Detailed Application Field Plans

The DS28E15P+T finds applications in various fields, including:

1. Authentication Systems: Used for secure identification and access control in smart cards, key fobs, and electronic locks.
2. Industrial Automation: Enables reliable data storage and communication in industrial sensors, actuators, and control systems.
3. Medical Devices: Provides secure storage of patient data and device configuration in medical equipment and wearable devices.
4. Automotive Electronics: Used for secure keyless entry systems, vehicle diagnostics, and firmware updates in automotive electronics.
5. Consumer Electronics: Enables secure communication and data storage in smart home devices, wearables, and IoT applications.

Detailed and Complete Alternative Models

1. DS28E15-100+: Similar to DS28E15P+T but available in a 6-pin TSOC package.
2. DS28E15-200+: Higher capacity version with 2Kb of EEPROM memory.
3. DS28E15-SP: Extended temperature range variant for harsh environments (-40°C to +125°C).

These alternative models offer similar functionality and compatibility with the 1-Wire communication protocol.

In conclusion, the DS28E15P+T is a high-performance 1-Wire EEPROM integrated circuit designed for secure communication and data storage applications. With its unique features and flexible addressing options, it provides a reliable and cost-effective solution for various industries.