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