Maxim MAX36051 security manager

Maxim has introduced the MAX36051 security manager that provides 128 bytes of nonimprinting memory to securely store sensitive data, while drawing little battery power in standby mode (1.5 µA).

The internal tamper monitors and tamper detection inputs interface with external sensors so that end users have a greater level of security in their system. The device is suitable where small-capacity batteries are used and is appropriate for applications where tamper detection and secure data storage are required and low power consumption is critical, as in secure USB, power meter and point-of-sale applications.

It provides tamper detection regardless of the power source. The on-chip, battery-backup controller function constantly monitors main power (V_CC) and automatically switches to the battery (V_BAT) when the main power is too low or not present.

For battery-power conservation, the manager has various duty-cycle options that facilitate its low current consumption. Drawing a minimum of 1.5 µA, the device can retain critical information and monitor tampers while on battery power alone.