Datasheet

August 2011 Doc ID 11469 Rev 8 1/30
1
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:
4.63 V to 1.58 V
■ Secondary supply (V
CC2
) monitor
(STM6717/18/19/20/77/78)
■ Fixed (factory-programmed) reset thresholds:
3.08 V to 0.79 V
■ Tertiary supply monitor (using externally
adjustable RSTIN): 0.626 V internal reference
■ RST outputs (push-pull or open drain); state
guaranteed if V
CC1
or V
CC2
≥ 0.8 V
■ Reset delay time (t
rec
) on power-up: 13.2 ms,
210 ms, 900 ms (typ)
■ Manual reset input (MR)
■ Optional delayed manual reset input (MRC)
with external capacitor (STM6777/78/79/80)
■ Low supply current - 11 µA (typ),
V
CC1
= V
CC2
= 3.6 V
■ Operating temperature: –40 °C to 85 °C
(industrial grade)
SOT23-5 (WY)
SOT23-6 (WB)
Table 1. Device summary
Part
number
Monitored voltages
Manual reset
input (MR)
Delayed MR
pin (MRC)
Reset output (RST
)
Package
V
CC1
V
CC2
RSTIN
Active-low
(push-pull)
Active-low
(open drain)
STM6717 ✔✔ ✔ ✔ WY
STM6718 ✔✔ ✔ ✔ WY
STM6719 ✔✔✔ ✔ ✔ WB
STM6720 ✔✔✔ ✔ ✔ WB
STM6777 ✔✔ ✔ ✔ ✔ WB
STM6778 ✔✔ ✔ ✔ ✔ WB
STM6779 ✔✔✔✔ ✔WB
STM6780 ✔✔✔✔✔ WB
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