Description
Item Description:
The DS28CN01 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the Federal Information Publications (FIPS) 180-1/180-2 and ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1). The memory is organized as four 32-byte pages. Data copy protection and EPROM emulation features are supported for each memory page. Each DS28CN01 has a guaranteed unique factory-programmed 64-bit registration number. Communication with the DS28CN01 is accomplished through an industry-standard I2C-compatible and SMBus™-compatible interface. The SMBus timeout feature resets the device’s interface if a bus-timeout fault condition is detected.
Product Specs:
| Brand | Maxim Integrated |
| MPN | DS28CN01U-A00+T |
| Model | DS28CN01 |
| 1024 Bits of EEPROM Memory | Four Pages of 256 Bits |
| Dedicated Hardware-Accelerated SHA-1 Engine | Generating SHA-1 MACs |
| EEPROM Memory Pages | Individually Copy Protected or Put Into EPROM Mode (Program from 1 to 0 Only) |
| Write Access | Requires Knowledge of the Secret and the Capability of Computing and Transmitting a 160-Bit MAC as Authorization |
| Unique, Factory-Programmed, and Tested 64-Bit Registration Number | Assures Absolute Traceability Because No Two Parts are Alike |
| Endurance | 200,000 Cycles at +25°C |
| Serial Interface User Programmable | I2C Bus and SMBus Compatibility |
| I2C Communication Speed | 100kHz and 400kHz |
| Tolerant Interface Pins | +5.5V |
| Operating Ranges | +1.62V to +5.5V, -40°C to +85°C |
| Package | 8-Pin µSOP |
