DS3605:DeepCover Security Manager for NV SRAM Control with RTC and Thermal Tamper Detection

Single-Chip Solution Integrates Advanced Physical Security to Protect Against Physical and Environmental Tamperings

DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible. The DeepCover Security Manager (DS3605) is the integration of a nonvolatile (NV) SRAM controller, real-time clock (RTC), CPU supervisor, and temperature sensor to provide tamper protection for secure transaction terminals and other security-sensitive applications. The RTC can be used with a common 32.768kHz 6pF watch crystal. Access to the time-of-day and tamper monitoring is conducted through an I²C-compatible interface. In the event of a primary power failure, an external battery source is automatically switched on to keep the internal and external memory, RTC, and tamper-detection circuitry alive. Additionally, output signals are provided to reset the microprocessor, indicate battery operation, and power external circuitry from either the system supply or the battery.

Key Features
  • RTC with Leap Year Compensation Valid Up to 2100
  • Uses Standard 32.768kHz 6pF Watch Crystal
  • Four General-Purpose Tamper Detect Comparators with Associated Reference
  • On-Chip Temperature Sensing for Detection of Thermal Attacks
  • Programmable Temperature Set-Points
  • Programmable Memory Erase Time from 0.01 to 100 Seconds
  • Timestamping of Tamper Events
  • Integrated CPU Supervisor
  • Service and Case Switch Digital Inputs
  • On-Chip Random Number Seed Generator
  • On-Chip Glitch Filter
  • I²C-Compatible Interface
  • Low Power Consumption (< 4µA at +25°C)
  • 3.0V to 3.6V Single-Supply Operation
Applications/Uses
  • Alarm Systems
  • Automated Teller Machines
  • Digital Cinema Technology
  • Gaming
  • Healthcare
  • IT Security
  • Network Servers
  • PIN Pads
  • POS
  • Software-Defined Radios
Parametrics
Part NumberAnalog Voltages MonitoredDigital Inputs MonitoredExt. Memory Cntrl.Random Number Gen.Over Voltage MonitorBattery MonitorPackage/PinsOper. Temp.
(°C)
DS360541YesYesNoYesCSBGA/25-40 to +85
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
DS3605B+No Longer AvailableDS3605C+CSBGA,;25 pin;26 mm²-40°C to +85°CLead Free
DS3605B+TRLNo Longer AvailableDS3605C+TRLCSBGA,;25 pin;26 mm²-40°C to +85°CLead Free
DS3605C+ActiveCSBGA,;25 pin;26 mm²-40°C to +85°CLead Free
DS3605C+TRLActiveCSBGA,;25 pin;26 mm²-40°C to +85°CLead Free
Battery Selection for Security Manager Applications MAX36051
DS3605.pdf DS3605