DS2430A

Product Overview

• Category: Integrated Circuit
• Use: Memory Chip
• Characteristics: Non-volatile, One-Wire Interface
• Package: 6-Pin TSOC (Thin Small Outline Package)
• Essence: Secure Memory with a Unique 64-Bit Serial Number
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Memory Size: 256 bits
• Operating Voltage: 2.8V to 6.0V
• Data Transfer Speed: Up to 16.3 kbps
• Temperature Range: -40°C to +85°C
• Write Endurance: 10,000 cycles
• Data Retention: Up to 25 years

Pin Configuration

The DS2430A has the following pin configuration:

1. VCC: Power Supply
2. GND: Ground
3. DQ: Data Input/Output
4. NC: No Connection
5. NC: No Connection
6. NC: No Connection

Functional Features

• Single-contact communication using the One-Wire protocol
• Unique 64-bit serial number for device identification
• Non-volatile memory for secure data storage
• Write protection mechanism to prevent unauthorized modifications
• Low power consumption for battery-operated applications

Advantages

• Compact package size allows for space-efficient designs
• Wide operating voltage range enables compatibility with various systems
• High data transfer speed for quick access to stored information
• Long data retention period ensures reliable storage over extended periods
• Write endurance of 10,000 cycles provides durability for frequent updates

Disadvantages

• Limited memory size may not be sufficient for certain applications
• Lack of additional pins restricts functionality compared to other ICs
• One-Wire interface may require specialized hardware for communication

Working Principles

The DS2430A utilizes a single-contact One-Wire interface, allowing it to communicate with a host device using just one data line. It operates as a non-volatile memory chip, storing data securely even when power is disconnected. The unique 64-bit serial number assigned to each DS2430A enables device identification and authentication.

Detailed Application Field Plans

The DS2430A finds applications in various fields, including:

1. Access Control Systems: Used for secure identification and authentication purposes.
2. Smart Cards: Provides secure storage for sensitive information like encryption keys.
3. Industrial Automation: Enables data logging and tracking in industrial environments.
4. Medical Devices: Stores patient-specific data securely in medical equipment.
5. Automotive Electronics: Utilized for vehicle diagnostics and firmware updates.

Alternative Models

• DS2431: Similar to DS2430A but with larger memory capacity (1024 bits)
• DS28E01: Offers additional features like SHA-1 engine and tamper detection
• DS2502: Provides 1Kb of EEPROM memory with One-Wire interface

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