DeepCover Security Manager with SPI-Compatible Interface and 1KB Nonimprinting Key Memory

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 (DS3641) is a secure supervisor with 1,024 bytes of SRAM for applications requiring the secure storage of encryption keys, including POS terminals. The 1KB key memory is constantly complemented in the background to prevent oxide stress and memory imprinting. In the event of a qualified tamper event, the key memory is rapidly cleared.

Key Features

  • 1024-Byte Nonimprinting Key Memory with High-Speed Erase
  • 64-Byte General-Purpose RAM (Not Cleared)
  • Real-Time Clock
  • Watchdog Timer
  • CPU Supervisor
  • Four General-Purpose Tamper-Detection Comparators with Associated Reference
  • Three Tamper-Detection Logic Inputs
  • On-Chip Programmable Temperature Sensor
  • On-Chip Random Number Generator
  • Latching and Time-Stamping of Tamper Events
  • 3.3V to 3.6V Single-Supply Operation
  • BGA Package


  • Alarm Systems
  • Automated Teller Machines
  • Digital Cinema Technology
  • Gaming
  • Healthcare
  • IT Security
  • Network Servers
  • PIN Pads
  • POS
  • Software-Defined Radios
Part NumberAnalog Voltages MonitoredDigital Inputs MonitoredInternal Key Memory
Package/PinsOper. Temp.
DS3641 531024
-40 to +85
See All Security Managers (12)
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.

Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

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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