DS1238S/T&R Maxim Integrated, DS1238S/T&R Datasheet - Page 5

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

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

OSCILLATOR CONTROLS Table 1
Note that the OSCIN and OSCSEL pins are tri-stated when V
POWER MONITOR, WATCHDOG TIMER, AND PUSHBUTTON RESET Figure 3
PUSHBUTTON RESET TIMING Figure 4
External
Internal
Hi/Open
Ext Cap
OSCIN
Ext Clk
Low
OSCSEL
Hi/Open
Hi/Open
Low
Low
Following a Reset
First Period
Watchdog Timeout Period (typ)
2.2
20480 Clks
47
2.7 sec
2.7 sec
sec
pf
5 of 14
X Cpf
CC
Other Timeout
is below V
5120 Clocks
550
47
170 ms
2.7 sec
pf
ms
X Cpf
BAT
.
Reset Active
69
47
Duration
641 Clks
85 ms
85 ms
ms
pf
X Cpf
DS1238