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STC803

ETC
Part Number STC803
Manufacturer ETC
Description (STC8xx) UP Supervisor Circuits
Published Oct 22, 2007
Detailed Description www.DataSheet4U.com Data Sheet STC803/809/810-811/812/-823/824/825-6342/6343/6344/6345 µP Supervisor Circuits --------...
Datasheet PDF File STC803 PDF File

STC803
STC803

Overview
www.
DataSheet4U.
com Data Sheet STC803/809/810-811/812/-823/824/825-6342/6343/6344/6345 µP Supervisor Circuits -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Features • Precision supply-voltage monitor - 4.
63V (STC8xxL, STC634xL) - 4.
38V (STC8xxM, STC634xM) - 3.
08V (STC8xxT, STC634xT) - 2.
93V (STC8xxS, STC634xS) - 2.
63V (STC8xxR, STC634xR) - 2.
32V (STC8xxZ, STC634xZ) - 2.
20V (STC8xxY, STC634xY) • 200ms reset pulse width • Debounced CMOS-compatible manual-reset input (811, 812, 823, 825, 6342-6344) • Reset Output Signal for Watchdog and Power Abnormal, Manual Reset • Reset Push-Pull output (STC809,811,823, 824,825,6342,6345) • Reset Open-Drain output (STC803/6343) • Voltage monitor for power-fail or low battery warning • Guaranteed RESET/RESET valid at VCC = 1.
0V Introduction The STCxxx family microprocessor (µP) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in µP systems.
These devices reduce the complexity and number of components required to monitor power-supply and battery functions.
The main functions are: 1.
Asserting reset output during power-up, powerdown and brownout conditions for µP system; 2.
Detecting power failure or low-battery conditions with a 1.
25V threshold detector; 3.
Watchdog functions; 4.
Manual reset.
Applications • Power-supply circuitry in µP systems Ordering Information Part No.
RESET output Push-Pull Open-Drain √ √ RESET output (push-pull) √ √ √ √ √ √ Manual Reset Input √ √ √ √ √ √ √ Power Fail Detector (1.
25V) √ √ √ √ Watchdog Input √ √ Package 1 2 3 4 5 6 7 8 9 10 11 12 STC803X STC809X STC810X STC811X STC812X STC823X STC824X STC825X STC6342X STC6343X STC6344X STC6345X √ √ √ √ √ √ √ SOT23-3 SOT23-5 SOT23-6 Suffix: X -- Monitored Voltage Suffix X Reset threshold (V) STC L 4.
63 M 4.
38 T 3.
08 S 2.
93 R 2.
63 Z 2.
32 Y 2.
20 Ver1.
0 1 Data Sheet STC803/809...


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