DS28EC20P+T
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 6-SMD, J-Lead |
| Mfr | Analog Devices Inc./Maxim Integrated |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Technology | EEPROM |
| Supplier Device Package | 6-TSOC |
| Memory Size | 20Kbit |
| Memory Type | Non-Volatile |
| Voltage - Supply | - |
| Memory Organization | 256 x 80 |
| Memory Format | EEPROM |
| Memory Interface | 1-Wire® |
| Write Cycle Time - Word, Page | - |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | DS28EC20 |
| REACH Status | REACH Unaffected |
| Standard Package | 4,000 |
| ECCN | EAR99 |
| HTSUS | 8542.32.0051 |
DS28EC20P+T non-volatile EEPROM Memory IC 20Kbit
The DS28EC20P+T is a 20,480-bit (20Kb) non-volatile EEPROM manufactured by Maxim Integrated (now part of Analog Devices), designed for secure, space-constrained applications requiring reliable data storage. Organized into 80 pages of 256 bits each, plus an additional control page, it supports flexible data management with a 32-byte scratchpad buffer for data validation before permanent storage. The device operates via the single-contact 1-Wire protocol, enabling communication at speeds of 15.4kbps or 125kbps, depending on the system's requirements.
DS28EC20P+T non-volatile EEPROM Applications
● Medical Device Authentication: Stores unique device IDs or calibration parameters for disposable sensors, ensuring traceability and preventing unauthorized reuse.
● Industrial Sensor Calibration: Safeguards factory-calibrated data in harsh environments, such as temperature or pressure sensors, with write-protected pages.
● Asset Tracking & Logistics: Provides a unique ID and usage logs for smart tags, enabling real-time monitoring in supply chains.
● PCB Identification: Embeds board-specific data (e.g., revision numbers, test results) during manufacturing for quality control.
● Secure Access Systems: Integrates with 1-Wire networks for door locks or authentication tokens, leveraging its tamper-resistant storage.
Alternative Secure Storage Chips
1. DS28E40P+T: A 40Kb 1-Wire EEPROM by Maxim Integrated, offering double the storage capacity for data-intensive applications like loggers.
2. DS28E36P+T: Features SHA-256 hardware encryption for secure authentication, suitable for high-security IoT devices.
3. AT24C02: A 2Kb I2C EEPROM from Microchip, ideal for low-cost consumer electronics but lacks 1-Wire's space efficiency.
4. 24AA025UID: A 2Kb I2C EEPROM with a unique ID by Microchip, competing in asset tracking but requiring more I/O pins than 1-Wire.
