MAX697C/D Maxim Integrated, MAX697C/D Datasheet - Page 3

• Manufacturer Part Number: MAX697C/D
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX696, MAX697r

Specifications of MAX697C/D

• Number Of Voltages Monitored: 1
• Monitored Voltage: 3 V to 5.5 V
• Undervoltage Threshold: Adj
• Overvoltage Threshold: Adjustable
• Output Type: Active High, Active Low, Push-Pull
• Manual Reset: Not Resettable
• Watchdog: Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 70 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 70 C
• Package / Case: Die
• Chip Enable Signals: Yes
• Maximum Power Dissipation: 600 mW
• Minimum Operating Temperature: 0 C
• Power Fail Detection: Yes
• Supply Current (typ): 300 uA
• Supply Voltage - Min: 3 V

ELECTRICAL CHARACTERISTICS (continued)
(V
Note 2: T
Note 3: WDI is guaranteed to be in the mid-level (inactive) state if WDI is floating and V
Reset Timeout Delay
Watchdog Timeout Period,
Internal Oscillator
Watchdog Timeout Period,
External Clock
Minimum WDI Input Pulse Width
RESET and RESET Output
Voltage (Note 2)
LOW LINE and WDO Output
Voltage
Output Short-Circuit Current
WDI Input Threshold
WDI Input Current
POWER-FAIL DETECTOR
PFI Input Threshold
PFI - LL
PFI Input Current
LL
PFO Output Voltage
PFO Short-Circuit Source Current
CHIP-ENABLE GATING (MAX697)
CE IN Thresholds
CE IN Pullup Current
CE OUT Output Voltage
CE Propagation Delay
OSCILLATOR
OSC IN Input Current
OSC SEL Input Pullup Current
OSC IN Frequency Range
OSC IN Frequency with External
Capacitor
CC
IN
= full operating range, V
Input Current
IN
internally biased to 38% of V
A
PARAMETER
Threshold Difference
= full operating range.
_______________________________________________________________________________________
BATT
Microprocessor Supervisory Circuits
= 2.8V, T
Figure 6, OSC SEL HIGH, V
Long period, V
Short period, V
Long period
Short period
V
I
I
I
I
I
RESET, RESET, WDO, LOW LINE
V
(Note 3)
WDI = V
WDI = 0V
V
V
MAX697
MAX696
I
I
PFI = 0V, PFO = 0V
V
V
I
I
I
V
OSC SEL = 0V
OSC SEL = 0V, C
SINK
SINK
SOURCE
SINK
SOURCE
SINK
SOURCE
SINK
SOURCE
SOURCE
CC
IL
CC
CC
CC
IL
IH
CC
, V
= 0.4V, V
with an impedance of approximately 125kΩ.
= 5V
= 3V, 5V
= 3V, 5V
= 5V
= 400µA, V
= 1.6mA, 3V < V
= 800µA, T
= 1.6mA
= 1.6mA
CC
A
OUT
= 1µA, V
= 1µA, V
= 1µA, V
= 800µA
= 1µA, V
= 5V
= +25°C, unless otherwise noted.)
IH
CC
CC
= 3.5V, V
A
CC
OSC
CC
CC
Logic-low
Logic-high (MAX696)
Logic-high (MAX697)
CC
CC
= 5V
= 5V
= full
= 2V, V
= 5V
= 5V, T
= 5V
= 0V
CONDITIONS
CC
= 47pF
CC
< 5.5V
CC
BATT
= 5V
A
= full
= 5V
= 0V
CC
is in the operating voltage range. WDI is
V
V
0.05V
4032
1.00
-500
0.5V
MIN
960
200
3.5
3.5
3.5
3.8
-50
1.2
-25
3.5
3.0
CC
CC
35
70
1
1
0
-
-
±0.01
±0.01
±0.01
TYP
±15
100
-15
1.6
1.3
±2
50
20
80
3
3
3
5
4
MAX
4097
1025
2.25
±50
±25
+25
+25
140
150
250
0.4
0.4
0.4
0.8
1.4
0.4
0.8
0.4
50
70
25
25
UNITS
cycles
Clock
kHz
kHz
mV
ms
ms
µA
µA
nA
nA
µA
µA
µA
µA
ns
ns
V
V
V
V
V
V
V
s
3