DS24L65:DeepCover Secure Authenticator with SHA-256 Coprocessor and 1-Wire Master Function

Advanced Physical Security Protects System Secret, Offloads Host SHA-256 Computing

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 (DS24L65) 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 DS24L65 can be put in sleep mode where power consumption is minimal. A DS24L65 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: 1.8V ±5%
  • ±8kV ESD Protection on IO to GND (JESD22-A114 HBM, Typical)
  • Operating Range: 1.8V ±5%, -40°C to +85°C
  • 6-Pin TSOC Package
DS24L65: Typical Application Circuit
DS24L65: Typical Application Circuit
Applications/Uses
  • Authentication of Consumables
  • Secure Feature Control
DataSheet
titleDownload file
DS24L65 Data SheetDS24L65.pdf
Parametrics
Part NumberFunctionsVSUPPLY
(V)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
See Notes
DS24L651-Wire Bridge
SHA-256 Coprocessing
1.71 to 1.89TSOC/6-40 to +85$1.06 @1k

Part NumberApplicationsMemory TypeMemory SizeBus TypeVSUPPLY
(V)
Deep CoverOper. Temp.
(°C)
Package/PinsBudgetary
Price
See Notes
DS24L65IP Protection
Medical Consumable ID
PCB ID and Authentication
Print Cartridge Authentication
EEPROM512 bits1-Wire
I2C
1.71 to 1.89Yes-40 to +85TSOC/6$1.06 @1k
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
DS24L65P+ActiveTSOC,;6 pin;17.8 mm²-40°C to +85°CLead Free
DS24L65P+TActiveTSOC,;6 pin;17.8 mm²-40°C to +85°CLead Free
DS24L65.pdf DS24L65
DS24L65_cn.pdf DS24L65
DS24L65.pdf DS24L65
DS24L65.pdf DS24L65
Introduction to SHA-256 Master/Slave Authentication DS24L65
Hardware Security ICs Offer Large Security Returns at a Low Cost DS24L65
Uptime Protects the Bottom Line DS24L65
Easily Add Memory, Security, Monitoring, and Control to Medical Sensors and Consumables DS24L65
DS24L65.pdf DS24L65
DS24L65_cn.pdf DS24L65