Analog Devices DS1233
The DS1233 EconoReset monitors two vital conditions for a microprocessor: power supply and external override. 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.FEATURES
● 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 5%, 10%, or 15% Microprocessor 5V 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 Pin Assignment DALLAS DS1233 Econo Reset 1 123 123 BOTTOM VIEW TO-92 PACKAGE See Mech. Drawings Section on Website 24 3 TOP VIEW SOT-223 PACKAGE See Mech. Drawings Section on Website PIN
DESCRIPTION
PIN 1 PIN 2 PIN 3 PIN 4 GROUND RESET VCC GROUND (SOT-223 ONLY) Ordering Information appears at end of data sheet. 19-7930; Rev 2; 8/25 © 2025 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.