DS2465
DeepCover Secure Authenticator with SHA-256 Coprocessor and 1-Wire Master Function
Advanced Physical Security Protects System Secret, Offloads Host SHA-256 Computing
Maxim Confidential 
MyMaxim SubscriptionsProduct Details
DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible.
The DeepCover Secure Authenticator (DS2465) is a SHA-256 coprocessor with built-in 1-Wire® master that provides the SHA-256 and memory functionality required by a host system to communicate with and operate a 1-Wire SHA-256 slave. In addition, it performs protocol conversion between the I2C master and any attached 1-Wire SHA-256 slaves. For 1-Wire line driving, internal user-adjustable timers relieve the system host processor from generating time-critical 1-Wire waveforms, supporting both standard and overdrive 1-Wire communication speeds. The 1-Wire line can be powered down under software control. Strong pullup features support 1-Wire power delivery to 1-Wire devices such as EEPROMs. When not in use, the DS2465 can be put in sleep mode where power consumption is minimal.
A DS2465 evaluation board is included in each of the authenticator evaluation kits below.
Key Features
- SHA-256 Engine to Operate a Symmetric-Key-Based Bidirectional Secure Authentication Model
- Two 32-Byte Pages of User EEPROM with Multiple Programmable Protection Options
- 1-Wire Master Port with Selectable Active or Passive 1-Wire Pullup
- Strong 1-Wire Pullup Provided by an Internal Low-Impedance Signal Path
- 1-Wire Port Can Be Powered Down Under Software Control
- I²C Operating (Pullup) Voltage: 3.3V ±10%
- ±8kV ESD Protection on IO to GND (JESD22-A114 HBM, Typical)
- Operating Range: 3.3V ±10%, -40°C to +85°C
- 6-Pin TSOC Package
Applications/Uses
- Authentication of Consumables
- Secure Feature Control
| Crypto Engine | Symmetric |
| Applications | Companion Coprocessor IP Protection Medical Consumable ID PCB ID and Authentication Print Cartridge Authentication |
| Bus Type | 1-Wire I2C |
| Memory Type | EEPROM |
| Memory Size | 512 bits |
| Deep Cover | Yes |
| Package/Pins | TSOC/6 |
| Functions | 1-Wire Bridge SHA-256 Coprocessing |
| VSUPPLY (V) | 2.97 to 3.63 |
| Package/Pins | TSOC/6 |
| Oper. Temp. (°C) | -40 to +85 |
Technical Docs
Click any title below to view the detail page where available.
Description
Features
- EV Kit Contains
- Five DS28E25 Devices in a TDFN-EP Package
- One USB-to-I2C PC Adapter (DS9400#) Provides PC Connection
- DS2465EVKIT# Evaluation Board Provides 1-Wire Interface and SHA-256 Coprocessor
- One EV Board (DS9120Q+) with TDFN-EP Socket Provides Easy Chip Evaluation
- USB-to-I2C Module Contains Prolific PL-2303HXD USB-to-UART Chip
- Enumerates as a Virtual PC COM Port
- Windows-Certified Logo USB Device Driver Available
- Standard USB Cable Interface
- EV Board Contains Convenient On-Board Test Points
- Evaluation Software Will Be Provided Along with Full Evaluation Kit Data Sheet
Description
Features
- EV Kit Contains
- Five DS28E22 Devices in a TDFN-EP Package
- One USB-to-I2C PC Adapter (DS9400#) Provides PC Connection
- DS2465EVKIT# Evaluation Board Provides 1-Wire Interface and SHA-256 Coprocessor
- One EV Board (DS9120Q+) with TDFN-EP Socket Provides Easy Chip Evaluation
- USB-to-I2C Module Contains Prolific PL-2303HXD USB-to-UART Chip
- Enumerates as a Virtual PC COM Port
- Windows-Certified Logo USB Device Driver Available
- Standard USB Cable Interface
- EV Board Contains Convenient On-Board Test Points
- Evaluation Software Will Be Provided Along with Full Evaluation Kit Data Sheet
Description
Features
- Complete EV System:
- Five DS28E15 ICs in TDFN-EP Package
- One USB-to-I2C Adapter (DS9400#) Provides PC Connection
- DS2465EVKIT# EV Board Provides 1-Wire Interface and SHA-256 Coprocessor
- One EV Board (DS9120Q+) with TDFN-EP Socket Provides Easy Chip Evaluation
- USB-to-I2C Module Contains Prolific PL-2303HXD USB-to-UART Chip
- Enumerates as a Virtual PC COM Port
- Windows Certified Logo USB Device Driver Available
- Standard USB Cable Interface
- EV Board Contains Convenient On-Board Test Points
- Evaluation Software Will Be Provided Along with Full Evaluation Kit Data Sheet
 | SIMULATION MODELS DS2465 IBIS Model | Download |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
Parameters
Key Features
- SHA-256 Engine to Operate a Symmetric-Key-Based Bidirectional Secure Authentication Model
- Two 32-Byte Pages of User EEPROM with Multiple Programmable Protection Options
- 1-Wire Master Port with Selectable Active or Passive 1-Wire Pullup
- Strong 1-Wire Pullup Provided by an Internal Low-Impedance Signal Path
- 1-Wire Port Can Be Powered Down Under Software Control
- I²C Operating (Pullup) Voltage: 3.3V ±10%
- ±8kV ESD Protection on IO to GND (JESD22-A114 HBM, Typical)
- Operating Range: 3.3V ±10%, -40°C to +85°C
- 6-Pin TSOC Package
Applications/Uses
- Authentication of Consumables
- Secure Feature Control
Description
DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible.
The DeepCover Secure Authenticator (DS2465) is a SHA-256 coprocessor with built-in 1-Wire® master that provides the SHA-256 and memory functionality required by a host system to communicate with and operate a 1-Wire SHA-256 slave. In addition, it performs protocol conversion between the I2C master and any attached 1-Wire SHA-256 slaves. For 1-Wire line driving, internal user-adjustable timers relieve the system host processor from generating time-critical 1-Wire waveforms, supporting both standard and overdrive 1-Wire communication speeds. The 1-Wire line can be powered down under software control. Strong pullup features support 1-Wire power delivery to 1-Wire devices such as EEPROMs. When not in use, the DS2465 can be put in sleep mode where power consumption is minimal.
A DS2465 evaluation board is included in each of the authenticator evaluation kits below.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
Request a Quote