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MC14467P-1 Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc |
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MC14467P-1 Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 8 page MC14467-1 Rev 4, 05/2005 Freescale Semiconductor Technical Data © Freescale Semiconductor, Inc., 2005. All rights reserved. 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 ORDERING INFORMATION Device Case No. Package MC14467P1 648-08 Plastic Dip MC14467-1 LOW-POWER CMOS IONIZATION SMOKE DETECTOR IC P SUFFIX 16-LEAD PLASTIC DIP CASE 648-08 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 N/C LED VDD Guard Lo-z Silver Brass VSS Detect Comp. OUT Low V Set Low V Comp. OUT Timing Resistor Feedback Osc Capacitor Sensitivity Set Detect Input Guard Hi-z Figure 1. Pin Connections |
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