MAX6727A(2019) データシートの表示（PDF） - Maxim Integrated

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MAX6727A
(Rev.:2019)

Dual/Triple, Ultra-Low-Voltage, SOT23 μP Supervisory Circuits

Maxim Integrated 

MAX6715A–MAX6729A/

MAX6797A

Dual/Triple, Ultra-Low-Voltage, SOT23 μP

Supervisory Circuits

Pin Description (continued)

PIN

MAX6715A/

MAX6716A

MAX6717A/

MAX6718A

MAX6719A/

MAX6720A

MAX6721A/

MAX6722A

MAX6723A/

MAX6724A

MAX6725A/

MAX6726A

MAX6727A

MAX6728A/

MAX6729A/

MAX6797A

NAME

FUNCTION

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

—

—

—

5

3

3

3

3

WDI startup period (35s min)

after each reset event

and a short watchdog

timeout period (1.12s min)

after the first 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.

Undervoltage Reset

Comparator Input. High-

impedance input for

adjustable reset monitor.

The reset output is

asserted when RSTIN falls

—

—

5

—

5

7

7

—

RSTIN below the 0.626V internal

reference voltage. Set the

monitored voltage reset

threshold with an external

resistor-divider network.

Connect RSTIN to VCC1

or VCC2 if not used.

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