MAX703CSA+TG068 Maxim Integrated, MAX703CSA+TG068 Datasheet - Page 8

• Manufacturer Part Number: MAX703CSA+TG068
• Description: Supervisory Circuits Low Cost Microprocessor Supervisory Circuit with Battery Backup
• Manufacturer: Maxim Integrated
• Series: MAX703, MAX704r

Specifications of MAX703CSA+TG068

• Number Of Voltages Monitored: 1
• Monitored Voltage: 4.65 V
• Output Type: Active Low, Push-Pull
• Manual Reset: Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: Backup
• Supply Voltage - Max: 5.5 V
• Chip Enable Signals: No
• Power Fail Detection: Yes
• Supply Current (typ): 350 uA
• Supply Voltage - Min: 0 V

In addition to asserting reset at the V
voltage, reset can also be asserted at the PFI input
threshold voltage. Connect PFO to MR to initiate a reset
Low-Cost Microprocessor Supervisory
Circuits with Battery Backup
Table 3. Maxim Microprocessor Supervisory Products
8
MAX690A
MAX691A
MAX692A
MAX693A
MAX696
MAX697
MAX700
MAX703
MAX704
MAX705
MAX706
MAX707
MAX708
MAX791
MAX1232
MAX1259
PART
_______________________________________________________________________________________
THRESHOLD
Using the Power-Fail Comparator
NOMI NAL
4.50/4.75
4.65/Adj.
RESET
4.65
4.65
4.40
4.40
4.65
4.40
4.65
4.40
4.65
4.40
4.65
Adj.
Adj.
( V)
—
M I NI M UM
140/Adj.
140/Adj.
RESET
PULSE
35/Adj.
35/Adj.
WI DTH
( m s)
140
140
200
140
140
140
140
140
140
140
250
—
NOMI NAL
TI MEOUT
0.15/0.60/
WATCH-
PERI OD
1.6/Adj.
1.6/Adj.
1.6/Adj.
1.6/Adj.
DOG
1.2
( s )
1.6
1.6
1.6
1.6
1.0
to Assert Reset
—
—
—
—
—
—
CC
reset threshold
BATTERY
BACKUP-
SWITCH
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
PROTECT
WRITE
Yes
Yes
Yes
Yes
CE
No
No
No
No
No
No
No
No
No
No
No
No
COMPARATOR
pulse when the monitored supply drops below a user-
specified threshold or when V
threshold. For additional noise rejection, place a
capacitor between PFI and GND.
POWER- FAI L
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
M ANUAL
RESET
I NPUT
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
WATCH-
I NPUT
DOG
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
CC
OUTPUT
LOW-
LI NE
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
falls below the reset
ACTI VE-
RESET
HI GH
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
OUTPUT
BATT
ON
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No