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SX8124ISTRT Datasheet(PDF) 1 Page - Semtech Corporation |
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SX8124ISTRT Datasheet(HTML) 1 Page - Semtech Corporation |
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1 / 23 page  www.semtech.com/products/ Page 1 ADVANCED COMMUNICATIONS & SENSING DATASHEET SX8124 24 hours timer synchronized on 50/60Hz mains ACS - Revision 2.4 October 2010 © Semtech Corp. Description Features The SX8124 is 24 hours timer with an analog programmable duty cycle that synchonizes on European standard (220V/50Hz) and US standard (110V/60Hz) mains for high timing precision without calibration or resonator. The SX8124 starts counting time when connected to the mains, its internal counter can be reset on the press of a button (optional) or by setting the duration to zero. The SX8124 duty cycle is set using one single resistive divider. Its output can be forced on or off with the press of the optional button. SX8124 outputs are complementary to simplify the connection of switches and an optional LED can confirm the timer status. 24 hours timer synchronized on mains frequency Analog period setting Automatic 50 Hz and 60 Hz detection Simplest usage Manual on/off/reset option LED status option Applications Mosquito repellent Odor killers Illuminated decoration Xmas animation Ordering Information Part number Function Package SX8124ISTRT 24 hours timer SOIC-8 - Available in tape and reel only - WEEE/RoHS compliant. Pb-Free and Halogen Free. Functional Bloc Diagram PHASE DURATION VSS VDD OUT NOUT LED START SX8124 ADC DEBOUNCE SYNC BURST Reg 1.2 – 2.0 V supply 24 hours duration LED blink: Once every 5 sec: off Twice every 5 sec: on 2 Hz: ‘‘no synch’’ error Start Timer ON/OFF outputs |
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