HT81R03-00 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT81R03-00 Datasheet PDF : 11 Pages
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Preliminary
HT81003/HT81R03
Electrical Characteristics
Ta=25°C
Symbol
Parameter
Test Conditions
VDD Conditions
VDD Operating Voltage
¾
¾
IDD Operating Current
3V No load (OSC on)
ISTB Standby Current
3V
¾
IOL1
IOH1
OUT1 (PWM+)
PWM Output Current
3V VOL=0.1VDD
3V VOH=0.9VDD
IOL2
IOH2
I/O2 (TR)
Tr Output Current
3V VOL=0.1VDD
3V VOH=0.9VDD
IOL3 I/O1 (FLAG Sink Current) 3V VOL=0.1VDD
VIH ²H² Input Voltage
¾
¾
VIL
²L² Input Voltage
¾
¾
Min.
2.4
¾
¾
75
3
1
-1
3
0.8VDD
0
Typ.
¾
1000
1
90
6
3
-2
5
¾
¾
Max. Unit
3.6
V
1200 mA
3
mA
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
VDD
V
0.2VDD V
Functional Description
The EasyVoiceTM is voice synthesizer with
3-second voice capacity. A group of pre-recorded
voice sections is played upon receipt of key trigger
input signals. Two FLAG signals are output
while playing voices.
The 3-sec voice capacity can be divided into sec-
tions of arbitrary length. Notice that the silence
length and end-pulse width are not included in
the memory.
By using Holtek¢s programming tools, the con-
tents and arrangement of sections, as well as
key features and FLAG output are all program-
mable before device fabrication.
The IC provides 2 key inputs (KEY1~KEY2),
KEY1 can be optioned as a direct, sequential
trigger key. Key 2 can be selected as a stop or a
direct key.
Play function block diagram
K ey
tr ig g e r
K ey
fe a tu re s
o p tio n
8 /1 6 /3 2 W
speaker
K ey
fu n c tio n
V o ic e
ta b le
ROM
ROM
PW M +
PW M -
S e le c t
TR
P la y c o n tr o l lo g ic
F la g
o u tp u t
V DD
8W
speaker
4
July 24, 2000
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