MAX703 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX703 Datasheet PDF : 10 Pages
| |||
MAX703/MAX704
Low-Cost Microprocessor Supervisory
Circuits with Battery Backup
Using the Power-Fail Comparator
to Assert Reset
In addition to asserting reset at the VCC reset thresh-
old voltage, reset can also be asserted at the PFI input
threshold voltage. Connect PFO to MR to initiate a reset
pulse when the monitored supply drops below a user-
specified threshold or when VCC falls below the reset
threshold. For additional noise rejection, place a capacitor
between PFI and GND.
Table 3. Maxim Microprocessor Supervisory Products
PART
NOMINAL
RESET
THRESHOLD
(V)
MINIMUM
RESET
PULSE
WIDTH
(ms)
NOMINAL
WATCH-
DOG
TIMEOUT
PERIOD
(s)
BACKUP-
BATTERY
SWITCH
CE
WRITE
PROTECT
POWER-FAIL
COMPARATOR
MANUAL WATCH- LOW-
RESET DOG LINE
INPUT INPUT OUTPUT
ACTIVE-
HIGH
RESET
BATT
ON
OUTPUT
MAX690A
4.65
140
1.6
Yes
No
Yes
No
No
No
No
No
MAX691A
4.65
140/Adj. 1.6/Adj. Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
MAX692A
4.40
140
1.6
Yes
No
Yes
No
No
No
No
No
MAX693A
4.40
140/Adj. 1.6/Adj. Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
MAX696
Adj.
35/Adj. 1.6/Adj. Yes
No
Yes
No
Yes
Yes
Yes
Yes
MAX697
Adj.
35/Adj. 1.6/Adj. No
Yes
Yes
No
Yes
Yes
Yes
No
MAX700 4.65/Adj.
200
—
No
No
No
Yes
No
No
Yes
No
MAX703
4.65
140
—
Yes
No
Yes
Yes
No
No
No
No
MAX704
4.40
140
—
Yes
No
Yes
Yes
No
No
No
No
MAX705
4.65
140
1.6
No
No
Yes
Yes
Yes
No
No
No
MAX706
4.40
140
1.6
No
No
Yes
Yes
Yes
No
No
No
MAX707
4.65
140
—
No
No
Yes
Yes
No
No
Yes
No
MAX708
4.40
140
—
No
No
Yes
Yes
No
No
Yes
No
MAX791
4.65
140
1.0
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
MAX1232 4.50/4.75
250
0.15/
0.60/1.2
No
No
No
Yes
No
No
Yes
No
MAX1259
—
—
—
Yes
No
Yes
No
No
No
No
No
www.maximintegrated.com
Maxim Integrated │ 8
Share Link: 