UNISONIC TECHNOLOGIES CO., LTD
UM68TXX
Preliminary
CMOS IC
128 NOTES DUAL TONE
MELODY GENERATOR PWM
OUTPUT DIRECT TO BUZZER
AND SPEAKER
DESCRIPTION
1
TO-92
The UTC
UM68TXX
series are CMOS LSI designed for
using in door bell, telephone and toy application. It is an on-chip
ROM programmed for musical performance. Produced by
CMOS technology, the device results in very low power
consumption. Since the UTC
UM68TXX
series include
oscillation circuits a compact melody module can be constructed
with only a few additional components.
FEATURES
* OSC resistor hold mode
* Power on reset: melody begins from the first
note
* Built in level hold mode
* PWM output
* 128-Note Rom memory
* 2.5V ~ 5V power supply and low power consumption
* Dynamic speaker can be driven with external NPN transistor
* 14 tempos available through mask setting
* 15 beats available
* 27 notes (including rest) available
ORDERING INFORMATION
Order Number
Lead Free
UM68TxxL-T92-B
UM68TxxL-T92-K
Halogen Free
UM68TxxG-T92-B
UM68TxxG-T92-K
Package
TO-92
TO-92
Pin Assignment
1
2
3
V
SS
V
DD
O/P
V
SS
V
DD
O/P
Packing
Tape Box
Bulk
SONG SERIES LIST
P/N
UTC UM68T05
UTC UM68T08
UTC UM68T19
SONG NAME
Sweet Home
Happy Birthday
For Alice
MARKING
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., LTD
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UM68TXX
ABSOLUTE MAXIMUM RATING
Preliminary
CMOS IC
PARAMETER
SYMBOL
RATINGS
UNIT
DC Supply Voltage
V
CC
0V~5V
V
Input/output Voltage
V
IN
/V
OUT
GND-0.2V~V
DD
+0.2V
V
Junction Temperature
T
J
125
°C
Operating Temperature
T
OPR
-20~+85
°C
Storage Temperature
T
STG
-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
(V
DD
=3.0V, GND=0V, T
A
=25°C, unless otherwise specified)
SYMBOL
V
DD
I
DD
TEST CONDITIONS
MIN
2.5
TYP
3.0
3
MAX
5
10
UNIT
V
mA
PARAMETER
Operating Voltage
Operating Current
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-924.b
UM68TXX
TYPICAL APPLICATION CIRCUIT
Preliminary
CMOS IC
Switch
Speaker
V
DD
2
UTC
UM68TXX
2.5V-5.0V
1
VSS
3
O/P
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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QW-R502-924.b
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