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

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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


  • Alarm Systems
  • Automated Teller Machines
  • Digital Cinema Technology
  • Gaming
  • Healthcare
  • IT Security
  • Network Servers
  • PIN Pads
  • POS
  • Software-Defined Radios

See parametric specs for Security Managers (12)

Part NumberAnalog Voltages MonitoredDigital Inputs MonitoredPackage/PinsOper. Temp.
DS3605 41
-40 to +85

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Product Reliability Reports: DS3605.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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