M75018 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – IONIZATION SMOKE DETECTOR WITH INTERCONNECT

一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
IONIZATION SMOKE DETECTOR
WITH INTERCONNECT
SMOKE DETECTOR
M75018
GENERAL DESCRIPTION
The M75018 is a low-current CMOS circuit providing all of the required features for an ionization-type smoke detector. A
networking capability allows as many as 40 units to be interconnected so that if any unit senses smoke, all units will sound an
alarm. In addition, special features are incorporated to facilitate alignment and test of the finished smoke detector. can be used in
numerous other battery-operated safety/security applications.
FEATURES
‧ Piezoelectric Horn driver.
‧ Guard outputs on both sides of 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.
‧ Comparators output for detect.
‧ Strobe output for external trim resistors.
‧ I/O Pin allows up to 40 units to be connected for common signaling.
‧ Power-on reset places IC in standby mode.
PIN ASSIGNMENT
M75018P
DET_COMP ¹
16 _{GUARD 2}
I/O
DECTOR IN
LOW-V SET
GUARD 1
STROBE OUT
SEN_SET
LED
OSC_CAP.
VDD
HORN2
TIME_RES
HORN1
FEED BACK
8
9
VSS
1/6
2007-07-27