December 2011 Doc ID 14289 Rev 3 1/20
1
STM6904
Quad, ultralow voltage supervisor
with push-button reset
Features
■ Quad voltage monitoring
■ Accurate ±1.8% across temperature voltage
threshold (±1% at 25 °C)
■ Primary supply (V
CC
) monitor. Fixed (factory -
programmed) reset thresholds: 3.078
to 2.188 V
■ Second fixed (V2IN) monitor. Fixed (factory-
programmed) reset thresholds: 2.333
to 1.110 V
■ Two additional adjustable supply monitor
inputs (externally adjustable)
■ 0.6 V internal reference
■ RST output (open drain)
■ Output guaranteed for V
CC
≥ 0.8 V
■ Reset delay time (t
REC
) pin selectable
■ Manual reset input (MR)
■ Low supply current of 12 µA (typ)
■ Power supply voltage 0.8 to 5.5 V
■ RoHS compliant (green package)
■ 8-pin MSOP/TSSOP
■ Operating temperature: –40 to 85 °C (industrial
grade)
Applications
■ Set-top boxes
■ Multi-voltage systems
■ Cable/satellite applications
■ Computer systems
■ Data storage equipment
MSOP8
(TSSOP8) (DS)
Table 1. Device summary
(1)
Order code V
RST1
(V) V
RST2
(V) t
REC
(ms) Package
STM6904TZEDS6F 3.078 2.333 210 MSOP8(TSSOP8)
STM6904TWEDS6F 3.078 1.683 210 MSOP8(TSSOP8)
STM6904TGEDS6F 3.078 1.110 210 MSOP8(TSSOP8)
STM6904SYEDS6F 2.955 2.188 210 MSOP8(TSSOP8)
STM6904SFEDS6F 2.955 1.050 210 MSOP8(TSSOP8)
STM6904PWEDS6F 2.866 1.683 210 MSOP8(TSSOP8)
1. Other reset threshold voltages and t
REC
timeout periods are offered. Minimum order quantities may apply. Contact local
ST sales office for availability.
www.st.com