1618

UNISONIC TECHNOLOGIES CO., LTD 1618 6 KEYS SIREN/ALARM SOUND GENERATOR  DESCRIPTION The UTC 1618 is a CMOS design for 6 different alarm sounds application. According to the priority of the select keys, the sound of UTC 1618 will be generated in cycling sequence.  FEATURES * Auto power off function, reduce power consumption. * Low operating voltage: 2V ~ 5V. * On-chip RC oscillator. * 6 different sounds. * 6 prioritized keys for selecting 6 different sounds. * Low stand by current. * CMOS process.  ORDERING INFORMATION Ordering Number Lead Free Halogen Free 1618L-D16-T 1618G-D16-T - 1618G-S16-R Package DIP-16 SOP-16 CMOS IC Packing Tube Tape Reel  MARKING DIP-16 SOP-16 www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd 1 of 5 QW-R502-007.H 1618  PIN CONFIGURATION VDD 1 S3 2 S5 3 S4 4 S6 5 S2 6 S1 7 GND 8 16 NC 15 NC 14 OSC2 13 OSC1 12 BZ2 11 BZ1 10 NC 9 INI CMOS IC  PIN DESCRIPTIONS PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PIN NAME VDD S3 S5 S4 S6 S2 S1 GND INI NC BZ1 BZ2 OSC1 OSC2 NC NC I/O DESCRIPTION - Power supply pin (+). I Sound selection keys. These keys connect with internal pull-down resistors. The I sound output will be enabled when a key is connected to VDD. On other hands, I the sound output will be disabled if a key is N.C. or connected to GND. I When two or more keys are selected in the same time, the sound will be I generated in cycling sequence. According to the priority of the keys, the proirity of I S1~S6 li...