DS28CN01 ABRIDGED DATA SHEET Rev 2 11/09 2 1Kb I C/SMBus EEPROM with SHA-1 Engine General Description Features The DS28CN01 combines 1024 bits of EEPROM with 1024 Bits of EEPROM Memory Partitioned Into challenge-and-response authentication security imple- Four Pages of 256 Bits mented with the Federal Information Publications (FIPS) Dedicated Hardware-Accelerated SHA-1 Engine 180-1/180-2 and ISO/IEC 10118-3 Secure Hash for Generating SHA-1 MACs Algorithm (SHA-1). The memory is organized as four 32-byte pages. Data copy protection and EPROM emu- EEPROM Memory Pages Can Be Individually lation features are supported for each memory page. Copy Protected or Put Into EPROM Mode Each DS28CN01 has a guaranteed unique factory-pro- (Program from 1 to 0 Only) grammed 64-bit registration number. Communication with Write Access Requires Knowledge of the Secret the DS28CN01 is accomplished through an industry- 2 and the Capability of Computing and Transmitting standard I C-compatible and SMBus-compatible a 160-Bit MAC as Authorization interface. The SMBus timeout feature resets the devices interface if a bus-timeout fault condition is Unique, Factory-Programmed, and Tested 64-Bit detected. Registration Number Assures Absolute Traceability Because No Two Parts are Alike Applications Endurance 200,000 Cycles at +25C PCB Unique Serialization 2 Serial Interface User Programmable for I C Bus Accessory and Peripheral Identification and SMBus Compatibility 2 Equipment Registration and License Supports 100kHz and 400kHz I C Communication Management Speeds Network Node Identification +5.5V Tolerant Interface Pins Printer Cartridge Configuration and Monitoring Operating Ranges: +1.62V to +5.5V, -40C to +85C Medical Sensor Authentication and Calibration 8-Pin SOP Package System Intellectual Property Protection Pin Configuration Ordering Information PART TEMP RANGE PIN-PACKAGE TOP VIEW DS28CN01U-A00+ -40C to +85C 8 SOP + DS28CN01U-A00+T -40C to +85C 8 SOP AD018V CC +Denotes a lead(Pb)-free/RoHS-compliant package. AD1 2 7 N.C. T = Tape and reel. DS28CN01 N.C. 3 6 SCL GND 4 5 SDA Typical Operating Circuit appears at end of data sheet. SOP SMBus is a trademark of Intel Corp. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.ABRIDGED DATA SHEET 2 1Kb I C/SMBus EEPROM with SHA-1 Engine ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground.........-0.5V to +6V Junction Temperature......................................................+150C Maximum Current on Any Pin...........................................20mA Storage Temperature Range .............................-55C to +125C Operating Temperature Range ...........................-40C to +85C Soldering Temperature...........................Refer to the IPC/JEDEC J-STD-020 Specification. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (T = -40C to +85C.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 1.62 5.50 V CC Standby Current I Bus idle, V = +5.5V 5.5 A CCS CC Operating Current I Bus active at 400kHz, V = +5.5V 500 A CCA CC Power-Up Wait Time t (Note 2) 5 s POIP EEPROM V 2.0V 10 CC Programming Time t ms PROG V < 2.0V 45 CC Programming Current I V = +5.5V 1.2 mA PROG CC At +25C 200,000 Endurance (Notes 3, 4, 5) N CY At +85C 50,000 Data Retention (Notes 6, 7, 8) t At +85C 40 Years DR SHA-1 ENGINE SHA-1 Computation Time t See full version of the data sheet. ms CSHA SHA-1 Computation Current I See full version of the data sheet. mA LCSHA SCL, SDA, AD1, AD0 PINS (Notes 9, 10) 0.3 V 2.0V -0.3 CC V CC Low-Level Input Voltage V V IL 0.25 V < 2.0V -0.3 CC V CC 0.7 V CCMAX V 2.0V CC V + 0.3V CC High-Level Input Voltage V V IH 0.8 V CCMAX V < 2.0V CC V + 0.3V CC 0.05 V 2.0V CC V Hysteresis of Schmitt Trigger CC V V HYS Inputs (Note 2) 0.1 V < 2.0V CC V CC V 2.0V 0.4 CC Low-Level Output Voltage at V V OL 0.2 4mA Sink Current, Open Drain V < 2.0V CC V CC 2 DS28CN01