STM6717_07 Datasheet, PDF (1/29 Pages) STMicroelectronics – Dual/triple ultra-low voltage supervisors with push-button reset (with delay option)

STM6717/6718/6719/6720
STM6777/6778/6779/6780
Dual/triple ultra-low voltage supervisors
with push-button reset (with delay option)
Features
■ Primary supply (V_CC1) monitor. Fixed (factory-
programmed) reset thresholds: 4.63V to 1.58V
■ Secondary supply (V_CC2) monitor
(STM6717/18/19/20/77/78).
■ Fixed (factory-programmed) reset thresholds:
3.08V to 0.79V
■ Tertiary supply monitor (using externally
adjustable rstin):
■ 0.626V internal reference
■ RST outputs (push-pull or open drain); state
guaranteed IF V_CC1 OR V_CC2 ≥ 0.8V
■ Reset delay time (t_rec) on power-up: 210ms,
900ms (typ)
■ Manual reset input (MR)
■ Optional delayed manual reset input (MRC)
with external capacitor (STM6777/78/79/80)
■ Low supply current - 11µA (typ),
V_CC1 = V_CC2 = 3.6V
■ Operating temperature: –40°C to 85°C
(industrial grade)
SOT23-5 (WY)
SOT23-6 (WB)
Table 1.
Part
number
Device summary
Monitored voltages
V_CC1 V_CC2 RSTIN
Manual reset
input (MR)
STM6717 ✔
✔
✔
STM6718 ✔
✔
✔
STM6719 ✔
✔
✔
✔
STM6720 ✔
✔
✔
✔
STM6777 ✔
✔
✔
STM6778 ✔
✔
✔
STM6779 ✔
✔
✔
STM6780 ✔
✔
✔
Delayed
MR pin
(MRC)
✔
✔
✔
✔
Reset output (RST)
Active-low Active-low ^Package
(push-pull) (open drain)
✔
WY
✔
WY
✔
WB
✔
WB
✔
WB
✔
WB
✔
WB
✔
WB
December 2007
Rev 6
1/29
www.st.com
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