DS2502P-E48+T&R: High-Performance 1Kbit EPROM Memory IC | Analog Devices
DS2502P-E48+T&R: High-Performance 1Kbit EPROM Memory IC by Analog Devices
The DS2502P-E48+T&R from Analog Devices Inc./Maxim Integrated is a cutting-edge 1Kbit EPROM memory IC designed for mission-critical applications requiring robust, non-volatile data storage. This comprehensive guide explores its technical specifications, advantages, and diverse industrial use cases to help engineers optimize their designs.
In-Depth Product Analysis
Manufacturer Background
As part of Analog Devices' acquisition of Maxim Integrated, this IC combines Maxim's renowned memory expertise with Analog's system-level innovation. The merger has strengthened quality control and technical support for this product line.
Technical Specifications
- Enhanced Memory Architecture: 128 8-bit organization with patented EPROM cell design
- Advanced 1-Wire Protocol: Supports 15.4kbps data transfer with parasitic power capability
- Extended Voltage Range: 2.8V-6V operation with 5kV ESD protection
- Industrial Durability: -40 C to +85 C operation with 100-year data retention
Comparative Advantages
Space-Efficient Design
The 6-TSOC package (3mm 2.5mm) is 40% smaller than comparable DIP packages, enabling high-density PCB layouts for IoT devices and wearable technology.
Security Features
OTP (One-Time Programmable) memory provides tamper-proof storage for:
- Device serialization
- Calibration constants
- Firmware versioning
Industry Applications
Industrial Automation
Case Study: A leading PLC manufacturer reduced field failures by 32% by storing motor calibration parameters in DS2502P-E48+T&R devices.
Medical Equipment
FDA-compliant solution for storing:
- Device usage history
- Sterilization cycle counts
- Patient treatment logs
Automotive Systems
Proven reliability in:
- TPMS sensors
- ECU configuration storage
- Odometer backup systems
Design Implementation Guide
Circuit Integration
Best practices for 1-Wire implementation:
- Use 4.7k pull-up resistor for standard speed
- Implement CRC verification for data integrity
- Follow Maxim's AN196 for EMI reduction
Programming Considerations
Key parameters for EPROM programming:
| Parameter | Value |
|---|---|
| Programming Voltage | 12V 5% |
| Pulse Width | 480 s minimum |
| Temperature Range | 0 C to 45 C |
Frequently Asked Questions
Q: Can the DS2502P-E48+T&R be reprogrammed?
A: As an OTP EPROM, data can only be written once during initial programming. For reprogrammable solutions, consider the DS28EC20 FRAM alternative.
Q: What's the maximum cable length for 1-Wire communication?
A: Up to 200 meters using proper cabling and repeaters. Refer to Application Note AN148 for long-distance implementations.
Purchasing Information
The DS2502P-E48+T&R is available in tape-and-reel packaging (3,000 units per reel) with the following ordering options:
- Evaluation Kit: DS2502P-EVKIT
- Sample Quantity: 10-unit packs
- Volume Pricing: Available for 1k+ quantities
For design support, download the complete DS2502P Technical Manual or contact our engineering team for schematic review services.