Datasheet

UNISONIC TECHNOLOGIES CO., LTD
1812A/1812B/1813
CMOS IC
SINGLE SOUND GENERATOR

SOP-8
DESCRIPTION
The UTC 1812A/1812B/1813 is a CMOS LSI chip designed for
use in sound effect products .It is equipped with tone circuit, noise
circuit and other control logic to generate different sounds including
rifle gun, machine gun, booming sound, door bell, alarm etc. The
customer supplied sound source can be analyzed and
programmed into an internal ROM by changing a mask layer during
device fabrication. The UTC 1812A/1812B/1813 is suitable for
various toy applications.

DIP- 8
FEATURES
DIP-14
*Single power supply: 2.4~3.3V
*Low standby current at 3V, 1μA typ
*Auto power-off function
*Speaker or direct piezo. application
*Built-in envelope control circuit
*1Hz-8Hz programmable LED flash output
*Minimum external components
*Low operating current
*Strong driving capability

ORDERING INFORMATION
Ordering Number
Lead Free
1812AL-xx-D08-T
1812BL-xx-D08-T
1813L-xx-D14-T
Halogen Free
1812AG-xx-D08-T
1812AG-xx-S08-R
1812BG-xx-D08-T
1812BG-xx-S08-R
1813G-xx-D14-T
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
Package
Packing
DIP-8
SOP-8
DIP-8
SOP-8
DIP-14
Tube
Tape Reel
Tube
Tape Reel
Tube
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
CMOS IC
MARKING
MARKING
Ordering Number
DIP-8 / DIP-14
SOP-8
1812A
8
1812B
7
6
UTC
1812B
1
2
5
-38
3
4
Date Code
L: Lead Free
G: Halogen Free
Lot Code
1813
(DIP-14)

-
PIN CONFIGURATIONS
DIP-8/SOP-8

DIP-8/SOP-8
DIP-14
PIN CONFIGURATIONS
1812A
1
2
3
4
5
6
7
8
-
PIN NO.
1812B 1813
1
9
2
12
3
13
2
4
14
5
3
6
4
7
5
8
6
7
8
1
10,11
SYMBOL
VSS
OUT
OUT
LED
ENV
VDD
KEY
OSC2
OSC1
TEST1
TEST2
TEST3
NC
DESCRIPTION
Negative power supply, GND
Sound output pad, out of phase to pad 3
Sound output pad
LED flash output pad
Sound envelope control pad
Positive power supply
Key input pad, low active
Oscillator output pad
Oscillator input pad
For IC test only
For IC test only
For IC test only
No connection
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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
CMOS IC
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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
CMOS IC
ABSOLUTE MAXIMUN RATINGS
PARAMETER
SYMBOL
VALUE
UNIT
Supply Voltage
VCC
-0.3~5
V
Input Voltage
VIN
Vss-0.3 ~ VDD+0.3
V
Operating Temperature
TOPR
0~+70
C
Storage Temperature
TSTG
-40~+150
C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

ELECTRICAL CHARACTERISTICS
PARAMETER
Operating Voltage
“H” Input Voltage
“L” Input Voltage
Output Source Current
Output Sink Current
ENV Source Current
LED Source Current
Standby Current
Operating Current
Oscillator Frequency
SYMBOL
VDD
VIH
VIL
IOH
IOL
IENV
ILED
IST-BY
IDD
FOSC
TEST CONDITIONS
VDD =3V
VDD =3V
VDD =3V
VDD =3V, VOH=2.5V
VDD =3V, VOL=0.5V
VDD =3V, VOH=2.5V
VDD =3V, VOH=2.5V
VDD =3V
VDD =3V, NO LOAD
R=270kΩ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
2.4
2.4
-1
1
-1
-1
TYP MAX UNIT
3
3.3
V
V
0.6
V
-2
mA
2
mA
-2
mA
-2
mA
1
5
μA
300 600 μA
64
kHz
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
CMOS IC
TIMING DIAGRAM
With an envelope
KEY
OSCILLATOR
OUT
No envelope
KEY
OSCILLATOR
OUT
OUT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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
CMOS IC
APPLICATION CIRCUITS
Speaker output with an envelope
Speaker output without an envelope
VDD
1 VSS
OSC1
8
Rosc
2 OUT OSC2 7
8050
3
100Ω
OUT
4
LED
6
KEY
VDD 5
VDD
UTC 1812A
100Ω
Piezo output without an envelope
1
Piezo
VSS
OSC1
8 Rosc
2 OUT OSC2 7
3
4
OUT
LED
6
KEY
VDD 5
VDD
UTC 1812A
100Ω
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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
CMOS IC
APPLICATION CIRCUITS(Cont.)
Hand touch trigger
Rosc
1 V
OSC1 8
SS
2 OUT OSC2 7
Piezo
3
VDD
Hand
Touch
6
OUT
4 LED
KEY
VDD 5
8050
UTC1812A
VDD
100Ω

APPLICATION CIRCUITS (1812-SIREN I)
VDD
1 VSS
OSC1
8
270KΩ
2 OUT OSC2 7
8050
3
100Ω
4
OUT
LED
6
KEY
VDD 5
VDD
UTC 1812A
100Ω
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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CMOS IC
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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