Datasheet

MAX6314
68HC11/Bidirectional-Compatible
µP Reset Circuit
_______________________________________________________________________________________ 3
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
4.7kΩ PULL-UP
2V/div
MAX6314 PULL-UP
2V/div
INPUT
5V/div
200ns/div
PULLUP CHARACTERISTICS
MAX6314-01
100pF
4.7kΩ
+5V
74HC05
74HC05
V
CC
GND
MR
100pF
+5V
RESET
MAX6314
6
0
-50 -30 30 90
SUPPLY CURRENT vs. TEMPERATURE
2
1
5
MAX6314-02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
-10 10 50
3
4
70
V
CC
= 5V
V
CC
= 3V
V
CC
= 1V
6
0
0
1
35
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2
1
5
MAX6314-03
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
2
3
4
4
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
50
0
-50 -30 10 90
POWER-DOWN RESET DELAY
vs. TEMPERATURE
10
40
MAX6314-04
TEMPERATURE (°C)
POWER-DOWN RESET DELAY (µs)
-10
20
30
30 50 70
V
CC
FALLING AT 1mV/µs
V
TH
= 4.63V
V
TH
= 3.00V
1.04
0.96
-50 -30 10 90
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE (V
CC
RISING)
0.97
0.98
1.02
1.00
1.03
MAX6314-05
TEMPERATURE (°C)
NORMALIZED RESET TIMEOUT PERIOD
-10
0.99
1.01
30 50 70
1.006
0.994
-50 -30 10 90
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE (V
CC
FALLING)
0.996
0.998
1.004
1.000
MAX6314-06
TEMPERATURE (°C)
NORMALIZED RESET THRESHOLD
-10
1.002
30 50 70
100
0
10 100 1000
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
20
MAX6314-07
RESET COMP. OVERDRIVE, V
TH
- V
CC
(mV)
MAXIMUM TRANSIENT DURATION (µs)
40
60
80
T
A
= +25°C
RESET OCCURS
ABOVE CURVE
V
TH
= 4.63V
V
TH
= 3.00V
600
0
-50 -30 10 90
RESET PULLUP TIME
vs. TEMPERATURE
100
200
500
300
MAX6314-08
TEMPERATURE (°C)
RESET PULL-UP-TIME (ns)
-10
400
30 50 70
C
L
= 390pF
C
L
= 100pF