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

 

Part Number	Replacement	Explanation

Description

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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

Applications/Uses

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