MAX6369 データシートの表示（PDF） - Maxim Integrated
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MAX6369 Datasheet PDF : 8 Pages
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Pin-Selectable Watchdog Timers
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +2.5V to +5.5V, SET_ = VCC or GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C and
VCC = +3V.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SET2 = 0, SET1 = 0, SET0 = 0
1
3
Watchdog Timeout
Period
MAX6371/MAX6372
SET2 = 0, SET1 = 0, SET0 = VCC
SET2 = 0, SET1 = VCC, SET0 = 0
tWD
SET2 = 0, SET1 = VCC, SET0 = VCC
SET2 = VCC, SET1 = 0, SET0 = 0
SET2 = VCC, SET1 = 0, SET0 = VCC
SET2 = VCC, SET1 = VCC, SET0 = 0
SET2 = VCC, SET1 = VCC, SET0 = VCC
10
30
ms
30
90
Watchdog Disabled
100
300
ms
1
3
10
30
s
60
180
Startup Delay Period
tDELAY
SET2 = 0, SET1 = VCC, SET0 = VCC
All other SET_ conditions
Watchdog Disabled
60
180
s
SET2 = 0, SET1 = 0, SET0 = 0
1
3
Watchdog Time-Out
Period
MAX6373/MAX6374
SET2 = 0, SET1 = 0, SET0 = VCC
SET2 = 0, SET1 = VCC, SET0 = 0
tWD
SET2 = 0, SET1 = VCC, SET0 = VCC
SET2 = VCC, SET1 = 0, SET0 = 0
SET2 = VCC, SET1 = 0, SET0 = VCC
SET2 = VCC, SET1 = VCC, SET0 = 0
SET2 = VCC, SET1 = VCC, SET0 = VCC
3
9
ms
10
30
Watchdog Disabled
100
300
ms
300
900
3
9
s
60
180
SET2 = 0, SET1 = 0, SET0 = 0
3
9
ms
Startup Delay Period
tDELAY
SET2 = 0, SET1 = 0, SET0 = VCC
SET2 = 0, SET1 = VCC, SET0 = 0
SET2 = 0, SET1 = VCC, SET0 = VCC
SET2 = VCC, SET1 = 0, SET0 = 0
SET2 = VCC, SET1 = 0, SET0 = VCC
SET2 = VCC, SET1 = VCC, SET0 = 0
SET2 = VCC, SET1 = VCC, SET0 = VCC
SET2 = 0, SET1 = 0, SET0 = 0
3
9
s
60
180
Watchdog Disabled
200
600
µs
First Edge (Note 3)
First Edge (Note 3)
60
180
s
3
9
ms
Watchdog Timeout
Period
SET2 = 0, SET1 = 0, SET0 = VCC
SET2 = 0, SET1 = VCC, SET0 = 0
tWD
SET2 = 0, SET1 = VCC, SET0 = VCC
SET2 = VCC, SET1 = 0, SET0 = 0
SET2 = VCC, SET1 = 0, SET0 = VCC
SET2 = VCC, SET1 = VCC, SET0 = 0
SET2 = VCC, SET1 = VCC, SET0 = VCC
3
9
s
1
3
Watchdog Disabled
30
90
µs
1
3
10
30
s
10
30
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