UTC 1618
CMOS IC
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R502-007,D
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.
DIP-16
* Pb-free plating product number: 1618L
PIN CONFIGURATION
OSC1
S6
S1
S4
OSC2
NC
NC
V
DD
S3
BZ1
NC
GND
INI
UTC 1618
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S2
S5
BZ2
UTC 1618
CMOS IC
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R502-007,D
PIN DESCRIPTIONS
Pin No Symbol I/O
Function
1 V
DD
-
Power supply pin (+).
2 S1 I
3 S2 I
4 S3 I
5 S4 I
6 S5 I
7 S6 I
Sound selection keys. These keys connect with internal pull-down resistors. The
sound output wiil be enabled when a key is connected to V
DD
. On other hands, the
sound output will be disabled if a key is N.C. or connected to GND.
When two or more keys are selected in the same time, the sound will be
generated in cycling sequence. According to the priority of the keys,
the proirity of S1~S6 list below : S1>S2>S6>S4>S5>S3.
8
GND
-
Power supply pin (-).
9 INI I
An internal pull-up resistor. Might disable BZ1, BZ2, when connected to GND.
10 NC - No
connecting.
11 BZ1 O
12 BZ2 O
Audio output pins.
13 OSC1 O
14 OSC2 I
Oscillator pin with external resistor.
15 NC -
No
connecting.
16 NC O
No
connecting.
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL
RATINGS
UNIT
Supply Voltage
V
DD
-0.3 ~ 6
V
Input Voltage
Vi
-0.3 ~ V
DD
+0.3 V
Output Voltage
Vo
-0.3 ~ V
DD
+0.3 V
Operating Temperature
Topr
0 ~ 65
C
Storage Temperature
Tstg
-40 ~ 125
C
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified: V
DD
=3V , Ta=25
C)
PARAMETER SYMBOL
MIN. TYP.
MAX.
UNIT
Operating Voltage
V
DD
2 3 5 V
Stand-By Current
Isb
10
20
uA
Operating Current
Iop
300
500
uA
Ioh 1 mA
BZ1, BZ2 Driving Current
Iol 1 mA
Operating Frequency
Fop 70 80 128
K
Hz
UTC 1618
CMOS IC
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R502-007,D
APPLICATION CIRCUIT (
)
UTC 1618
V
DD
S3
S1
S2
S6
S4
S5
GND
INI
NC
BZ1
BZ2
OSC2
NC
NC
OSC1
1
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
3.3 V
ZD
1 K
10F/16V
2.2 K
0.68K
945
882
0.1K
IN5392
V
DD
12V
0.01
51K
UTC 1618
CMOS IC
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R502-007,D
APPLICATION CIRCUIT (
)
UTC 1618
V
DD
S3
S1
S2
S6
S4
S5
GND
INI
NC
BZ1
BZ2
OSC2
NC
NC
OSC1
1
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
3.3 V
ZD
1 K
10F/16V
2.2 K
51K
0.68K
945
882
0.68 K
IN5392
0.01
772
772
945
882
0.1 K
0.1 K
V
DD
12V
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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