X5643 Datasheet, PDF (16/19 Pages) Intersil Corporation – CPU Supervisor with 64Kbit SPI EEPROM

X5643, X5645
TYPICAL PERFORMANCE
V_CC Supply Current vs. Temperature (I_SB)
18
16
Watchdog Timer On (V_CC = 5V)
14
12
10
Watchdog Timer On (V_CC = 5V)
8
6
4
2
Watchdog Timer Off (V_CC = 3V, 5V)
0
-40
25
90
Temp (°C)
t_WDO vs. Voltage/Temperature (WD1, 0 = 1, 1)
1.9
1.8
1.7
-40°C
1.6
25°C
1.5
1.4
90°C
1.3
1.2
1.1
1
1.7
2.4
3.1
3.8
4.5
5.2
Voltage
V_TRIP vs. Temperature (programmed at 25°C)
5.025
5.000
4.975
3.525
3.500
3.475
2.525
2.500
2.475
0
V_TRIP = 5V
V_TRIP = 3.5V
V_TRIP = 2.5V
25
85
Temperature
t_WDO vs. Voltage/Temperature (WD1, 0 = 1, 0)
0.8
0.75
0.7
0.65
0.6
0.55
0.5
0.45
1.7
25°C
-40°C
90°C
2.4
3.1
3.8
4.5
5.2
Voltage
t_PURST vs. Temperature
205
200
195
190
185
180
175
170
165
160
-40
25
Degrees °C
t_WDO vs. Voltage/Temperature (WD1, 0 0 = 0, 1)
205
200
195
-40°C
190
25°C
185
90°C
180
175
170
165
160
90
1.7
2.4
3.1
3.8
4.5
5.2
Voltage
16
FN8135.1
July 18, 2005