MC14467-1

www.DataSheet4U.com Freescale Semiconductor Technical Data MC14467-1 Rev 5.0, 3/2007 Low-Power CMOS Ionization Smoke Detector IC The MC14467-1, when used with an ionization chamber and a small number of external components, will detect smoke. When smoke is sensed, an alarm is sounded via an external piezoelectric transducer and internal drivers. This circuit is designed to operate in smoke detector systems that comply with UL217 and UL268 specifications. Features Ionization Type with On-Chip FET Input Comparator Piezoelectric Horn Driver Guard Outputs on Both Sides of Detect Input Input-Production Diodes on the Detect Input Low-Battery Trip Point, Internally Set, can be Altered Via External Resistor Detect Threshold, Internally Set, can be Altered Via External Resistor Pulse Testing for Low Battery Uses LED for Battery Loading Comparator Outputs for Detect and Low Battery Internal Reverse Battery Protection Pb-Free Packaging Designated by Suffix Code ED and EG MC14467-1 LOW-POWER CMOS IONIZATION SMOKE DETECTOR IC P SUFFIX ED SUFFIX (PB-FREE) 16-LEAD PLASTIC DIP CASE 648-08 EG SUFFIX (PB-FREE) 16-LEAD SOICW CASE 751G-04 ORDERING INFORMATION Device MC14467P1 648-08 MC14467ED1 MCZ14467EG/R2 751G-04 SOICW Plastic Dip Case No. Package DETECT COMP. OUT N/C LOW V SET LOW V COMP. OUT LED VDD TIMING RESISTOR FEEDBACK 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 GUARD HI-Z DETECT INPUT GUARD LO-Z SENSITIVITY SET OSC CAPACITOR SILVER BRASS VSS DETECT COMP. OUT ...