DS1231-35+ Dallas Semiconductor, DS1231-35+ Datasheet
DS1231-35+
Specifications of DS1231-35+
Related parts for DS1231-35+
DS1231-35+ Summary of contents
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... Voltage Monitors, Description With precise, temperature-compensated comparators, the DS1231 Power Monitor Chip monitors input power and a 5V system power supply. If unsafe voltages are detected, a nonmaskable interrupt sends a warning signal to the processor in advance of power failure. Processing is unconditionally halted when power falls below a user-selectable 5% or 10% threshold level, with time to shutdown proportional to the available hold-up time of the power supply. ...
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... Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character. 85ms to 300ms No Watchdog See All Supervisors (1 Monitored Voltage) (268) or contact an authorized distributor. Devices: 1- Power Fail 2.5 Comparator - DS1231 SeeFull Data Sheet or Part Naming 2000 - ...
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... DS1231 Notes DS1231-50+ DS1231-20N+ DS1231-35N+ DS1231-50N+ DS1231-35+ DS1231-20+ 200mV Hysteresis DS1231-50 500mV Hysteresis DS1231-20 200mV Hysteresis DS1231-35 350mV Hysteresis DS1231-50/G DS1231-35N 350mV Hysteresis DS1231-20N 200mV Hysteresis Free Buy TYPE PINS Package: Sample FOOTPRINT DRAWING CODE/VAR * PDIP;8 pin; Dwg: 21-0043 (PDF) Use pkgcode/variation: P8+7* PDIP ...
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... DS1231-50N 500mV Hysteresis DS1231S-20+T&R DS1231S-35+ DS1231S-35N/T&R DS1231S-50N/T&R DS1231S-50N+ DS1231S-20N+ DS1231S-50+ DS1231S-500+T&R DS1231S-20+ DS1231S-20 200mV Hysteresis DS1231S-20/T&R 200mV Hysteresis PDIP;8 pin; -40°C to +85° Dwg: 21-0043 (PDF) C Use pkgcode/variation: P8-7* SOIC;16 pin; 0°C to +70°C Dwg: 21-0042 (PDF) Use pkgcode/variation: W16 +11* SOIC ...
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... DS1231S-35 350mV Hysteresis DS1231S-35/T&R 350mV Hysteresis DS1231S-50 500mV Hysteresis DS1231S-500/T&R DS1231S-20N 200mV Hysteresis DS1231S-50N 500mV Hysteresis SOIC;16 pin; 0°C to +70°C Dwg: 21-0042 (PDF) Use pkgcode/variation: W16-11* SOIC;16 pin; 0°C to +70°C Dwg: 21-0042 (PDF) Use pkgcode/variation: W16-11* SOIC;16 pin; 0°C to +70°C ...
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... Replaces power-up reset circuitry No external capacitors required Optional 16-pin SOIC surface mount package DESCRIPTION The DS1231 Power Monitor Chip uses a precise tem- perature-compensated reference circuit which provides an orderly shutdown and an automatic restart of a pro- cessor-based system. A signal warning of an impending power failure is generated well before regulated DC voltages go out of specification by monitoring high volt- age inputs to the power supply regulators ...
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... C for 10 seconds ( MIN TYP MAX UNITS 4.5 5.0 5 4.5 to 5.5V) CC MIN TYP MAX UNITS 0 –0.5V V –0. -10 +10 A 1.0 2.0 mA 2.0 3.0 mA 0.5 2 0.1 A See Figure 3 4.50 4.62 4.74 V 4.25 4.37 4.49 V MIN TYP MAX UNITS DS1231/S NOTES 1 1 NOTES NOTES 022698 7/9 ...
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... DS1231/S AC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL V to NMI Delay t TP IPD V Slew Rate 4.75-4.25V Detect to RST and RST t CC RPD V Detect to NMI t CC IPU V Detect to RST and RST t CC RPU V Slew Rate 4.25-4.75V NOTES: 1. All voltages referenced to ground +5.0 volts with outputs open. ...
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