MAX794CSE(1996) データシートの表示（PDF） - Maxim Integrated
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MAX794CSE Datasheet PDF : 20 Pages
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3.0V/3.3V Adjustable Microprocessor
Supervisory Circuits
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.17V to 5.5V for the MAX793T/MAX795T, VCC = 3.02V to 5.5V for the MAX793S/MAX795S, VCC = 2.72V to 5.5V for the
MAX793R/MAX794/MAX795R, VBATT = 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
MAX793T/MAX795T 3.00
3.075
3.15
Reset Threshold (Note 8)
VRST
VCC Falling
MAX793S/MAX795S 2.85
MAX793R/MAX795R 2.55
MAX793T/MAX795T 3.00
2.925
2.625
3.085
3.00
2.70
V
3.17
VCC Rising
RESET IN Threshold
(MAX794 only)
RESET IN Leakage Current
(MAX794 only)
VRST IN
VCC Falling
VCC Rising
MAX793S/MAX795S
MAX793R/MAX795R
2.85
2.55
1.212
1.212
-25
2.935
2.635
1.240
1.250
2
3.02
2.72
1.262
V
1.282
25
nA
Reset Timeout Period
tRP
VCC < 3.6V
140
200
280
ms
LOWLINE-to-Reset
Threshold, (V LOWLINE -
VLR
VRST), VCC Falling
Low-Line Comparator
Hysteresis
LOWLINE Threshold,
VCC Rising
VLL
PFI Input Threshold
VTH
PFI Input Current
PFI Hysteresis, PFI Rising
BATT OK Threshold
(MAX793)
VBOK
INPUT AND OUTPUT LEVELS
RESET Output Voltage High VOH
MAX793
MAX794
MAX793
MAX794
MAX793T/MAX795T
MAX793S/MAX795S
MAX793R/MAX795R
MAX794
VPFI falling
VPFI rising
ISOURCE =300µA, VCC = VRST min
30
5
1.212
1.212
-25
2.00
45
15
10
10
1.240
1.250
2
10
2.25
60
mV
25
mV
mV
3.23
3.08
V
2.78
1.317
1.262
V
1.287
25
nA
20
mV
2.50
V
0.8VCC
0.86VCC
V
BATT OK, BATT ON, WDO,
LOWLINE Output Voltage
VOH ISOURCE = 300µA, VCC = VRST max
0.8VCC
0.86VCC
V
High
PFO Output Voltage High
VOH ISOURCE = 65µA, VCC = VRST max
0.8VCC
BATT ON Output
Voltage High
VOH ISOURCE = 100µA, VCC = 2.3V, VBATT = 3V 0.8VBATT
RESET Output Leakage
Current (Note 9)
ILEAK VCC = VRST max
-1
PFO Output Short to GND
Current
ISC
VCC = 3.3V, V PFO = 0V
180
V
V
-1
µA
500
µA
PFO, RESET, RESET, WDO,
LOWLINE Output Voltage
VOL
Low
ISINK = 1.2mA; RESET, LOWLINE tested
with VCC = VRST min; RESET, BATTOK,
WDO tested with VCC = VRST max
0.08
0.2VCC V
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