DS1233AZ-10+ by Analog Devices

3.3V EconoReset

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 (VCC). When an out-of-tolerance condition is detected, an internal power fail signal is generated which forces reset to the active state. When VCC 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.

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Automatically restarts microprocessor after power failure
Monitors pushbutton for external override
Internal circuitry debounces pushbutton switch
Maintains reset for 350ms after VCC 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 5kΩpull-up resistor
Operating temperature of -40°C to +85°C


Reset Thresh. (V) 2.5 to 3.3
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active LowOpen DrainWith Internal Pull-Up
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Manual Reset
ICC (µA) (max) 50
Package/Pins ST223/3TO92/3
BudgetaryPrice (See Notes) 0.85

DS1233AZ-10+ Clock Timing & Frequency Management by Analog Devices


Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock


Threshold Voltage 2.88V
No. of Supervisors / Monitors 1Monitors
Supply Voltage Min 1.2V
Supply Voltage Max 5.5V
Reset Type Active-Low
Digital IC Case SOT-223
No. of Pins 4Pins
Delay Time 350ms
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 1233
IC Temperature Range Industrial
Operating Temperature Range -40°C to +85°C
Output Current Max 8mA
Supply Current 50µA
Supply Voltage Range 1.2V to 5.5V
Termination Type Surface Mount Device

Alternative Descriptions

3.3V EconoReset | Analog Devices
Econoreset, 5.5V, Sot-223-4 | Newark Electronics

Frequently Asked Questions

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Is the DS1233AZ-10+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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