Datasheet
PIN
NAME FUNCTION
MAX6715A/
MAX6716A
MAX6717A/
MAX6718A
MAX6719A/
MAX6720A
MAX6721A/
MAX6722A
MAX6723A/
MAX6724A
MAX6725A/
MAX6726A
MAX6727A
MAX6728A/
MAX6729A/
MAX6797A
— — — 5 3 3 3 3 WDI
Watchdog Input. If WDI
remains high or low for
longer than the watchdog
timeout period, the
internal watchdog timer
runs out and the reset
output asserts for the
reset timeout period. The
internal watchdog timer
clears whenever a reset
is asserted or WDI sees
a rising or falling edge.
The watchdog has a long
startup period (35s min)
after each reset event
and a short watchdog
timeout period (1.12s min)
after the rst valid WDI
transition. Leave WDI
unconnected to disable
the watchdog timer. The
WDI unconnected-state
detector uses a small
200nA current source.
Therefore, do not connect
WDI to anything that will
source more than 50nA.
— — 5 — 5 7 7 — RSTIN
Undervoltage Reset
Comparator Input. High-
impedance input for
adjustable reset monitor.
The reset output is
asserted when RSTIN falls
below the 0.626V internal
reference voltage. Set the
monitored voltage reset
threshold with an external
resistor-divider network.
Connect RSTIN to V
CC1
or V
CC2
if not used.
MAX6715A–MAX6729A/
MAX6797A
Dual/Triple, Ultra-Low-Voltage, SOT23 μP
Supervisory Circuits
www.maximintegrated.com
Maxim Integrated
│
8
Pin Description (continued)