DS1238S/T&R Maxim Integrated, DS1238S/T&R Datasheet - Page 14

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DS1238S/T&R

Manufacturer Part Number
DS1238S/T&R
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
DS1238r
Datasheet

Specifications of DS1238S/T&R

Number Of Voltages Monitored
1
Monitored Voltage
5 V
Undervoltage Threshold
4.25 V
Overvoltage Threshold
4.5 V
Output Type
Active High, Active Low
Manual Reset
Resettable
Watchdog
Watchdog
Battery Backup Switching
Backup
Power-up Reset Delay (typ)
150 ms
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
SOIC-16 Wide
Chip Enable Signals
Yes
Minimum Operating Temperature
0 C
Power Fail Detection
Yes
Supply Current (typ)
4000 uA
Supply Voltage - Min
4.5 V
NOTES:
1. All voltages referenced to ground.
2. Measured with V
3. I
4. I
5. With t
6. V
7. t
8. t
9. All outputs except RST which is 25 A max.
10. All outputs except
11. The
12. I
13.
during normal 5-volt operation.
retention battery supply operation, with a maximum drop of 0.8 volts for commercial, 1.0V for
industrial.
operation. The OSCSEL pin will sink 10 A in normal operation.
ST
REC
CE
CCO1
CCO2
BAT
CCO
maximum must be met to insure data integrity on power loss.
should be active low before the watchdog is disabled (i.e., before the
is the minimum time required before
ST
is measured with V
is the maximum average load which the DS1238 can supply at V
is the maximum average load which the DS1238 can supply through the V
is approximately V
R
= 5 s.
pin will sink +50 A in normal operation. The OSCIN pin will sink 5 A in normal
CCO
RST
,
CEO
,
BAT
BAT
RVT
, PF,
=3.0V.
-0.5V at 1 A load.
, and
ST
, RST,
NMI
which is 25 A min.
CEI
RST
14 of 14
/
CEO
, and
memory access is allowed.
NMI
pin open.
CC
-.3V through the V
ST
input is tristated).
CCO
pin during data
CCO
DS1238
pin

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