DS2475:DeepCover ECDSA Coprocessor with 1-Wire Master

Offloads Host ECDSA Computing and 1-Wire Line Driving from Host Processor

DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible. The DeepCover Elliptic Curve Digital Signature Algorithm (ECDSA) coprocessor with built-in 1-Wire® master (DS2475) enables the efficient implementation of public- key based authentication when combined with an ECDSA secure authenticator. Additionally, for operation with 1-Wire ECDSA authenticators, an I2C-to-1-Wire protocol conversion function relieves the system host processor from generating time-critical 1-Wire waveforms. The DS2475 interfaces directly to standard (100kHz max) or fast (400kHz max) I2C masters. When not in use, the DS2475 can be put in sleep mode where power consumption is minimal.

关键特性
  • High-Speed ECDSA Engine for Public-Key Signature Verification
  • Implements NIST FIPS 186-Based ECDSA Algorithm
  • Integrated NIST FIPS 180 SHA-256 Engine for Efficient ECDSA Input Data Computation
  • 1-Wire Line Driver Supporting Both Standard and Overdrive Communication Speeds
  • Supports Power-Saving Sleep Mode (SLPZ Pin)
  • ±8kV ESD Protection on IO to GND (JESD22-A114 HBM, typ)
  • Operating Range: 3.3V ±10%, -40°C to +85°C
  • 6-Pin SOT23 Package
DS2475: Typical Application Circuit
DS2475: Typical Application Circuit
应用
  • 消费品认证
  • 外设认证
数据手册DataSheet
语言下载文件备注
英文DS2475.pdfRev 0; 06/2014
关键参数
Part NumberFunctionsVSUPPLY
(V)
Package/PinsOper. Temp.
(°C)
DS2475
  • 1-Wire Bridge
  • ECDSA Coprocessing
2.97 to 3.63SOT/6-40 to +85

Part NumberApplicationsBus TypeVSUPPLY
(V)
Deep CoverOper. Temp.
(°C)
Package/Pins
DS2475
  • IP Protection
  • Medical Consumable ID
  • PCB ID and Authentication
  • Print Cartridge Authentication
  • 1-Wire
  • I2C
2.97 to 3.63Yes-40 to +85SOT/6
开发工具
质量和环境数据
相关产品
  • DS28E35:DeepCover 1-Wire ECDSA认证器,带有1Kb用户EEPROM
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
DS2475R+T生产中SOT,;6引脚;9mm²-40°C至+85°CRoHS/无铅:无铅
DS2475R+U生产中SOT,;6引脚;9mm²-40°C至+85°CRoHS/无铅:无铅
DS2475.pdf DS2475
DS2475.pdf DS2475
DS2475.pdf DS2475
DS2475.pdf DS2475