DS1231S-20+ Maxim Integrated Products, DS1231S-20+ Datasheet - Page 8

• Manufacturer Part Number: DS1231S-20+
• Description: IC POWER MONITOR 20NS 16-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Simple Reset/Power-On Resetr

Specifications of DS1231S-20+

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active High/Active Low
• Reset Timeout: 150 ms Minimum
• Voltage - Threshold: 4.37V, 4.62V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Monitored Voltage: 4.5 V to 5.5 V
• Undervoltage Threshold: 4.5 V or 4.25 V
• Overvoltage Threshold: 4.74 V or 4.49 V
• Manual Reset: No
• Watchdog: No
• Battery Backup Switching: No
• Power-up Reset Delay (typ): 85 ms to 300 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Supply Current (typ): 2000 uA
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 70 C
• Chip Enable Signals: No
• Minimum Operating Temperature: 0 C
• Operating Supply Voltage: 5 V
• Output Type: Active High or Active Low or Open Drain
• Power Fail Detection: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC ELECTRICAL CHARACTERISTICS
NOTES:
1. All voltages referenced to ground.
2. V
3. Measured with outputs open.
4. t
5. RST is an open drain output and requires a pull–up resister.
6. RST remains within 0.5V of V
TIMING DIAGRAM: POWER-UP
DS1231/S
022698 8/9
PARAMETER
V
V
V
V
V
V
TP
CC
CC
CC
CC
CC
GND on power–down until V
R
CC
to NMI Delay
Slew Rate 4.75-4.25V
Detect to RST and RST
Detect to NMI
Detect to RST and RST
Slew Rate 4.25-4.75V
= 5 s.
= +5.0 volts with outputs open.
MODE=V
INPUT PIN 1
MODE=GND
V
NMI
CC
CC
V
TP
CC
CC
drops below 2.0V.
4.25V
on power–down until V
4.5V
SYMBOL
t
t
t
t
RPD
RPU
IPD
IPU
t
t
R
F
RST
4.75V
t
IPU
RST
MIN
300
150
t
0
R
V
OH
CC
drops below 2.0V. RST remains within 0.5V of
t
RPU
TYP
500
(0 C to 70 C; V
MAX
1000
100
200
1.1
V
V
OH
OL
UNITS
ms
ns
ns
s
s
s
CC
= 5V + 10%)
NOTES
4
4