BT8028-XX Datasheet, PDF (1/6 Pages) IK Semicon Co., Ltd – RC oscillator on chip

TECHNICAL DATA
SIMPLE MELODY GENERATOR
BT8028C-xx
FEATURES
FUNCTIONS
• 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
• 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
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^oC)
Characteristic
Symbol
Value
Unit
DC Supply Voltage
VCC – VSS
-0.3 ~ 3.5
V
Input Voltage
VIN
VSS – 0.3 ~ VCC – 0.3
V
Operating Temperature
Topr
-20 ~ +65
o_C
Storage Temperature
Tstg
-55 ~ +125
o_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 (Ta = 25^oC, VCC = 1.5V ; unless otherwise specified)
Characteristic
Symbol
Test Condition
Min
Typ
Operating Voltage
Supply Current
Stand-by
Operating
Output Drive Current
Output Sink Current
Frequency Stability
VCC
IS
ICC
IOH
IOL
∆F/F
Output open
VCC =1.3V, VO =0.8V
VCC =1.3V, VO =0.5V
FOSC(1.6V) - FOSC(1.3V)
FOSC(1.3V)
1.3
1.5
0.1
0.6
1.5
0.6
1.5
Max
Unit
3.3
V
1
µA
60
mA
mA
12
%
2011, February Ver. 01