The DS3650 is a 4-wire-compatible controller specifically intended to address the temperature and voltage monitoring requirements of the payment card industry (PCI) and other equipment where data protection and security is critical. The device incorporates a battery-backup controller, system power monitor, CPU supervisor, temperature sensor, and two tamper detection comparator inputs for interface to external sensors, interlocks, or antitamper meshes. In the event of primary power failure, an external battery power source is automatically switched in to keep the tamper-detection circuitry alive.

Key Features
Designed to Meet PCI/PED System Operating Requirements
Two General-Purpose Tamper Detect Comparators with Associated Reference
Latches State of All Tamper Detect Comparators
Free-Running 32-Bit Elapsed Time Counter
4-Wire-Compatible Interface
Programmable Glitch Filters
On-Chip Programmable Temperature Sensor
System Power Monitor for Detection of Power Supply Attacks
Tamper-Interrupt Output
Integrated CPU Supervisor
Battery-Backup Controller
Programmable Ultra-Low Power Consumption: 1.8µA at +25°C (typ)
3.0V to 3.6V Single-Supply Operation
Underwriters Laboratories (UL®) Recognized

Applications/Uses

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