STM6904(2008) Datasheet PDF - STMicroelectronics

Description

   The STM6904 supervisor is a low voltage/low supply current processor supervisor, designed to monitor up to four 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

◾ Quad 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

   2.188 V

◾ Second fixed (V2IN) monitor. Fixed (factory-

   programmed) reset thresholds: 2.333 V to

   1.110 V

◾ Two additional adjustable supply monitor

   inputs (externally adjustable)

◾ 0.6V internal reference

◾ RST output (open drain)

◾ Output guaranteed for VCC ≥ 0.8 V

◾ Reset delay time (trec) pin selectable

◾ 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