Overview








Watchdog



DATA SHEETS
Part Number Description Key Advantages
MAX6814 5-Pin Watchdog Timer Circuit

MAX6746, MAX6747, MAX6748,
...
µP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay




Key Specifications:

Supervisors (1 Monitored Voltage)
Part Number Reset Thresh.
(V)
Reset Out tRESET Watchdog Feature Watchdog Timeout Supervisor Features Reset Thresh. Accur.
(%)
ICC
(µA)
min @ +25°C max
MAX6746 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
Cap Adjustable
Input (WDI)
1s to 2s
<1s
>2s
Adjustable
Manual Reset 2 10
MAX6747 
Active Low
Open Drain
Cap Adjustable
Input (WDI)
Manual Reset
MAX6748 
Active Low
Push-Pull
Cap Adjustable
Input (WDI)
Adjustable Reset Input
MAX6749 
Active Low
Open Drain
Cap Adjustable
Input (WDI)
Adjustable Reset Input
MAX6752 
Active Low
Push-Pull
Cap Adjustable
Input (WDI)
Windowed
-
MAX6753 
Active Low
Open Drain
Cap Adjustable
Input (WDI)
Windowed
-
See All Supervisors (1 Monitored Voltage) (274)

Supervisors (2 Monitored Voltages)
Part Number Interface Reset Thresh.
(V)
Reset Out tRESET Watchdog Feature Watchdog Timeout Supervisor Features Reset Thresh. Accur.
(%)
ICC
(µA)
min @ +25°C max
MAX6750 
Factory Fixed
R/C Adjustable
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
Cap Adjustable
Input (WDI)
1s to 2s
<1s
>2s
Adjustable
Adjustable Reset Input 2 10
MAX6751 
Active Low
Open Drain
See All Supervisors (2 Monitored Voltages) (84)

Watchdog Timers
Part Number Watchdog Feature Watchdog Timeout Watchdog Output ICC
(µA)
RoHS Available Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
max max w/pins
MAX6814 
Input (WDI)
Input/Output (WDI/WDO)
Watchdog Only
1s to 2s Push-Pull 24 Yes
SC70/5
5.3
-40 to +85
0 to +70
See All Watchdog Timers (9)





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