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
BT8028C-xx
8028C
-xxL(S)
YWW
Vss Vcc 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
* Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond those
indicated under “recommended operating conditions” is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(T
a
= 25
o
C, V
CC
= 1.5V ; unless otherwise specified)
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
∆F/F
Output
open
0.6
0.6
1.5
1.5
12
Test Condition
Min
1.3
Typ
1.5
0.1
Max
3.3
1
60
Unit
V
µA
mA
mA
%
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)
2011, February Ver. 01
BT8028-xx
FOR SPEAKER
FOR PIEZO
+
R = 50Ω
1.5 V
V
DD
+
PIEZO
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
2011, February Ver. 01
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
