DS1233A 3.3V EconoReset

2021-09-18
●DESCRIPTION
■The DS1233A EconoReset monitors two vital conditions for a microprocessor: power supply and external override. A precision temperature-compensated reference and comparator circuit are used to monitor the status of the power supply (V-CC). When an out-of-tolerance condition is detected, an internal power fail signal is generated which forces reset to the active state. When V-CC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 350ms to allow the power supply and processor to stabilize. The second function of the DS1233A is pushbutton reset control. The DS1233A debounces a pushbutton closure and will generate a 350ms reset pulse upon release.
●FEATURES
■Automatically restarts microprocessor after power failure
■Monitors pushbutton for external override
■Internal circuitry debounces pushbutton switch
■Maintains reset for 350ms after V-CC returns to an in-tolerance condition or pushbutton released
■Accurate 10% or 15% microprocessor 3.3V power supply monitoring
■Reduces need for discrete components
■Precision temperature-compensated voltage reference and voltage sensor
■Low-cost TO-92 package or surface mount SOT-223 package
■Internal 5kΩ pull-up resistor
■Operating temperature of -40°C to +85°C

Maxim

DS1233ADS1233-15DS1233-10DS1233-5DS1233D-15DS1233D-10DS1233D-5DS1833-15DS1833-10DS1833-5DS1233A-15DS1233A-10

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EconoReset monitors

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Datasheet

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Please see the document for details

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TO-92;SOT-223;Q3+1;Q3+4;K3+1

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