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CAT706

µP Supervisory Circuit

Features	Description	Applications

FEATURES

Accurate under voltage system monitoring
RESET guaranteed valid for V_CC = 1.0V
6μA supply current
200ms RESET pulse width
Watchdog timer function 1.6 sec timeout
Brownout detection system reset for use with 3.0, 3.6, and 5.0 volt systems
Pin and function compatible with the MAX706 product
Operating Range from -40°C to +85°C
Available in SOIC 8-lead and MSOP 8-lead packages

DESCRIPTION

The CAT706 provides reset and monitoring functions for the electronic systems. Each device monitors the system voltage and maintains a reset output until that voltage reaches the device’s specified trip value and then maintains the reset output active condition until the device’s internal timer allows the system power supply to stabilize.

The CAT706 has a watchdog input which can be used to monitor a system signal and cause a reset to be issued if the signal fails to change state prior to a timeout condition.

The CAT706 provides a manual RESET input which initiates reset if pulled low. The CAT706 provides a RESET output which is low for the CAT706.

There is a secondary supply monitor included for power-fail warning (pin PFI).

The CAT706 has a threshold voltage 4.40V.

APPLICATIONS