TECHNICAL DATA
BT8031-XX
FEATURES
127-note ROM memory
2.0V to 5.0V power supply and low power
consumption
RC oscillator on chip
One shot or level hold mode (mask option)
Sound range: 2.5 octaves, 2 series
Tempo: 16 kinds (presto-largo)
Double sound sources
Digital Envelope Effect
Operation Temperature Range : -10 to 70℃
FUNCTIONS
Dynamic speaker can be driven with external
NPN transistor
Power on reset; melody begins from the first note
Start from the head of melody
Bare chip or TO-92 are available
DESCRIPTION
The BT8031-XX is a CMOS LSI chip, which plays a prearranged melodies. The ROM has a 127 words and can store up to two
melodies with double sound sources, and it uses the built-in digital envelope circuit.
SONG LIST
5 MO
PIN CONFIGURATION
01
02
03
04
05
For Elise
Ding - Dong
6 V
CC
BT8031-XX
Westminster
One Ding - Dong
1 V
SS
It’s Small World
MT 4
OSC TEST
2 3
V
SS
V
CC
MO
CHIP
TO-92
ELECTRICAL CHARACTERISTICS
(V
CC
= 3V, V
SS
= 0V, T
a
= 25
o
C;
Characteristic
Operating Voltage
Supply Current
Output Drive Current
Output Sink Current
Input Current MT
Frequency Stability
Stand-by*
Operating
Symbol
V
CC
I
S
I
CC
I
OH
I
OL
I
I
F/F
Test Condition
unless otherwise specified)
Min
2.0
Typ
3.0
-
0.6
0.5
0.5
-
Max
5.0
5
1
Unit
V
uA
mA
mA
mA
uA
%
Output open
V
CC
=3V, V
O
=0.8V
V
CC
=3V, V
O
=0.5V
V
IN
= V
CC
F
OSC
(3V) - F
OSC
(2V)
F
OSC
(3V)
0.5
0.5
0.5
3.0
15
* Only for version “ONE SHOT MODE”
1
BT8031-xx
APPLICATION CIRCUITS
LEVEL HOLD MODE (TO-92)
ONE SHOT MODE (BARE CHIP)
5 MO
R
V
CC
+
-
3V
BT8031-X X
V
SS
MO
R
Speaker
8
+
-
3V
1 V
SS
6 V
CC
MT 4
OSC TEST
2 3
R = 5
10k
NOTE:
The chip substrate is connected to V
SS
.
N SUFFIX PLASTIC DIP
(MS – 001BA)
A
8
5
B
1
4
Dimension, mm
Symbol
A
B
MIN
8.51
6.1
MAX
10.16
7.11
5.33
0.36
1.14
2.54
7.62
0°
2.92
7.62
0.2
0.38
10°
3.81
8.26
0.36
0.56
1.78
F
L
C
D
C
-T-
SEATING
PLANE
F
G
M
H
J
N
G
D
0.25 (0.010) M
T
K
H
J
K
L
M
N
NOTES:
1. Dimensions “A”, “B” do not include mold flash or protrusions.
Maximum mold flash or protrusions 0.25 mm (0.010) per side.
2
Real-time operating system RTOS
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