15
FN8131.3
December 9, 2015
t
WC
V
TRIP
Write Cycle Time 10 ms
t
RP
V
TRIP
Program Cycle Recovery Period (Between Successive Programming Cycles) 10 ms
t
VPO
SCK V
TRIP
Program Voltage Off-Time Before Next Cycle 0 ms
V
P
Programming Voltage 15 18 V
V
TRAN
V
TRIP
Programed Voltage Range 1.7 5.0 V
V
ta1
Initial V
TRIP
Program Voltage Accuracy (V
CC
Applied-V
TRIP
) (Programmed at +25°C) -0.1 +0.4 V
V
ta2
Subsequent V
TRIP
Program Voltage Accuracy [(V
CC
Applied-V
ta1
)-V
TRIP
] (Programmed at +25°C) -25 +25 mV
V
tr
V
TRIP
Program Voltage Repeatability (Successive Program Operations; Programmed at +25°C) -25 +25 mV
V
tv
V
TRIP
Program Variation After Programming (0°C to +75°C; Programmed at +25°C) -25 +25 mV
NOTE:
6. V
TRIP
programming parameters are periodically sampled and are not 100% tested.
V
TRIP
Programming Specifications V
CC
= 1.7 to 5.5V; Temperature = 0°C to +70°C. (Continued)
PARAMETER DESCRIPTION MIN MAX UNIT
Typical Performance Curves
FIGURE 10. V
CC
SUPPLY CURRENT vs TEMPERATURE (I
SB
) FIGURE 11. T
WDO
vs VOLTAGE/TEMPERATURE (WD1, 0 = 1, 1)
FIGURE 12. V
TRIP
vs TEMPERATURE (PROGRAMMED AT +25°C) FIGURE 13. T
WDO
vs VOLTAGE/TEMPERATURE (WD1, 0 = 1, 0)
18
16
14
12
10
8
6
4
2
0
-40 25 90
TEMPERATURE (°C)
ISB (µA)
WATCHDOG TIMER OFF (V
CC
= 3V, 5V)WATCHDOG TIMER OFF (V
CC
= 3V, 5V)
WATCHDOG TIMER ON (V
CC
= 5V)
WATCHDOG TIMER ON (V
CC
= 5V)
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
1.7 2.4 3.1 3.8 4.5 5.2
+90°C
+25°C
-40°C
RESET (s)
VOLTAGE (V)
5.025
5.000
4.975
3.525
3.500
3.475
2.525
2.500
2.475
025 85
VOLTAGE (V)
TEMPERATURE (°C)
V
TRIP
= 5V
V
TRIP
= 3.5V
V
TRIP
= 2.5V
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
1.7 5.2
RESET (s)
VOLTAGE (V)
2.4 3.1 3.8 4.5
+90°C
+25°C
-40°C
X5323, X5325
