DS28CN01U-A00+T - Maxim Integrated Products - 1Kb I2C/SMBus EEPROM with SHA-1 Engine



Detailed Product Description

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1Kb I2C/SMBus EEPROM with SHA-1 Engine





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 industrystandard I2C-compatible and SMBus™-compatible interface. The SMBus timeout feature resets thedevice’s interface if a bus-timeout fault condition is detected.





♦ 1024 Bits of EEPROM Memory Partitioned Into

Four Pages of 256 Bits

♦ Dedicated Hardware-Accelerated SHA-1 Engine

for Generating SHA-1 MACs

♦ EEPROM Memory Pages Can Be 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 for I2

C Bus

and SMBus Compatibility

♦ Supports 100kHz and 400kHz I2

C Communication


♦ +5.5V Tolerant Interface Pins

♦ Operating Ranges: +1.62V to +5.5V, -40°C to +85°C

♦ 8-Pin µSOP Package





part no.




supply ability







new and original stock



Competitive Advantage:


Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .

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