Description

The STM6905 supervisor is a low voltage/low supply current processor supervisor, designed to monitor up to five system power supply voltages. This device is targeted at applications such as set-top boxes (STBs), portable, battery-powered systems, networking and communication systems.

Features

• Quintuple voltage monitoring

• Accurate ±1.8 across temperature voltage threshold (±1 at 25 °C)

• Primary supply (VCC) monitor. Fixed (factory - programmed) reset thresholds: 3.078 V to 2.866 V

• Second fixed (V2IN) monitor. Fixed (factoryprogrammed) reset thresholds: 2.333 V to 1.050 V

• Three additional adjustable supply monitor inputs (externally adjustable)

• 600 mV internal reference

• RST output (open drain)

• Output guaranteed for VCC ≥ 0.8 V

• Reset delay time (TREC) on power-up: 210 ms (typ)

• Manual reset input (MR)

• Low supply current of 12 µA (typ)

• Power supply voltage 0.8 V to 5.5 V

• RoHS compliant (green package)

• 8-pin MSOP/TSSOP

• Operating temperature: –40 °C to 85 °C (industrial grade)

Applications

• Set-top boxes

• Multi-voltage systems

• Cable/satellite applications

• Computer systems

• Data storage equipment