TECHNICAL DATA
SIMPLE MELODY GENERATOR
FEATURES
•
127-note ROM memory
•
1.3V to 3.3V power supply and
low power consumption
•
RC oscillator on chip
•
One shot or level hold mode
•
Sound range: 4 octaves, 2
series
•
Tempo: 16 kinds (presto-
largo)
•
Direct piezo drive
FUNCTIONS
•
Solution of automatic stop or repeat of the
melody
•
Dynamic speaker can be driven with external
NPN transistor
•
Two or three times repeat of melody (mask
option)
•
Each note can be individually programmed to
be staccato or legato (mask option)
•
Changing the contents of melody is possible
by reprogramming the maskable ROM
•
Power on reset; melody begins from the first
note
•
Start from the head of melody
•
Bare chip or TO-92 are available
BT8028-XX
BT8028C-
XXL(S)
V
SS
V
CC
OUT
DESCRIPTION
The BT8028 is a CMOS LSI chip which electronically plays a prearranged melody. Selection of melody start signal is
possible by mask option: orders specification suffix "L" indicate Level Hold Mode, and suffix "S" indicate One Shot
Mode. The Universal version (as One Shot or Level Hold Mode) is possible also (suffix "U").
ABSOLUTE MAXIMUM RATINGS (Ta = 25
o
C)
Characteristic
DC Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
Symbol
V
CC
– V
SS
V
IN
T
opr
T
stg
Value
-0.3 ~ 3.5
V
SS
– 0.3 ~ V
CC
– 0.3
-20 ~ +65
-55 ~ +125
Unit
V
V
o
o
C
C
ELECTRICAL CHARACTERISTICS
(T
a
= 25
o
C,
Characteristic
Operating Voltage
Supply Current
Stand-by
Operating
Output Drive Current
Output Sink Current
Frequency Stability
Symbol
V
CC
I
S
I
CC
I
OH
I
OL
ΔF/F
V
CC
= 1.5V ;
unless otherwise specified)
Min
1.3
Typ
1.5
0.1
Max
3.3
1
60
0.6
0.6
1.5
1.5
12
Unit
V
μA
mA
mA
%
Test Condition
Output open
V
CC
=1.3V, V
O
=0.8V
V
CC
=1.3V, V
O
=0.5V
F
OSC
(1.6V) - F
OSC
(1.3V)
F
OSC
(1.3V)
1
BT8028-xx
FOR SPEAKER
FOR PIEZO
+
R = 50Ω
1.5 V
V
DD
+
PI EZO
1.5 V
V
DD
-
-
-
-
V
SS
+
V
SS
+
AVAILABLE SONG LIST
NEW EXT
№
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
BT8028C-001
BT8028C-002
BT8028C-003
BT8028C-004
BT8028C-005
BT8028C-006
BT8028C-007
BT8028C-008
BT8028C-009
BT8028C-010
BT8028C-011
BT8028C-012
BT8028C-013
BT8028C-014
BT8028C-015
BT8028C-016
BT8028C-017
BT8028C-018
BT8028C-019
BT8028C-020
BT8028C-021
BT8028C-022
BT8028C-023
For Elise
Staff WRK
Happy Birthday
Jingle Bell
It's Small World
3 Children Song
Cuocoo Waltz
SONG LIST
SEC
13
20
13
12
21
13
10
16
11
38
23
25
28
12
20
26
14
29
3
18
38
20
39
London Bridge is Falling Down
Trains Running Fast
Love Me Tender Love Me True
Love Story
Old McDonald Had a Farm
Jingle Bell (Santa Claus Is Coming to Town)
You are My Sunshine
Santa Claus is Coming To Town
Silent Night
Twinkle Twinkle Little Star
Korean melody
Phone ringer
Three Little Pigs
MNA
NOV24 (Cuckoo Waltz)
Home Sweet Home
3
BT8028-xx
NEW EXT
№
24
26
27
28
29
30
31
32
33
34
35
36
43
44
45
46
49
50
51
52
53
57
59
60
62
63
64
67
70
71
72
BT8028C-024
BT8028C-026
BT8028C-027
BT8028C-028
BT8028C-029
BT8028C-030
BT8028C-031
BT8028C-032
BT8028C-033
BT8028C-034
BT8028C-035
BT8028C-036
BT8028C-043
BT8028C-044
BT8028C-045
BT8028C-046
BT8028C-049
BT8028C-050
BT8028C-051
BT8028C-052
BT8028C-053
BT8028C-057
BT8028C-059
BT8028C-060
BT8028C-062
BT8028C-063
BT8028C-064
BT8028C-067
BT8028C-070
BT8028C-071
BT8028C-072
Cuckoo Waltz 2
AZ1
Seven forty
AZ3
AZ4
IR1
Ginm Petersburg
Hymn of Russia
My Moscow
SONG LIST
SEC
18
44
28
24
26
34
53
55
27
32
2 Hz
19
45
27
15
48
64
20
21
21
10
4 Hz
67
44
34
24
32
20
55
67
Home Sweet Home (Ver2, Shot)
Sound generator + Led driver
Varvara
Alexandra
IR2
For Elise 2
God Bless America
Gimn USA
Reg Time
It's Small World 2
AZ4-2
Car Alarm
Sound generator + Led driver
Day dream (Shuman)
Victory day
Oh! fighting Korea
Champion
March
Air Tale
Hymn of Ukraine
Metal
Pong
4
PCB Design
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