HT815D0 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT815D0 Datasheet PDF : 15 Pages
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Block Diagram
HT815D0
KEY1
K E Y 12
O SC1
O SC2
AUD
D ebounce
C ir c u it
O s c illa to r
C ir c u it
DAC &
O u tp u t
C o n tro l
O n e -s h o t
T im e B a s e
G e n e ra to r
S peech R O M
6 4 K ´ 6 - b it
K e y T a b le
T a b le R O M
5 0 8 ´ 1 3 - b it
ROM
A d d re s s
C o u n te r
S ta tu s
D is p la y
C o n tr o lle r
VDD
VSS
FLA G 1
FLA G 2
Pin Assignment
NC
NC
NC
NC
VDD
AUD
O SC2
O SC1
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
H T815D 0
1 6 D IP
NC
NC
KEY3
KEY2
KEY1
FLA G 2
VSS
FLA G 1
KEY7
KEY8
KEY9
K E Y 10
K E Y 11
K E Y 12
NC
VDD
AUD
O SC2
1
20 KEY 6
2
19 KEY 5
3
18 KEY 4
4
17 KEY 3
5
16 KEY 2
6
15 KEY 1
7
14 FLA G 2
8
13 VSS
9
12 FLA G 1
10
11 O SC 1
H T815D 0
2 0 D IP /S O P
KEY7
KEY8
KEY9
K E Y 10
K E Y 11
K E Y 12
NC
VDD
AUD
O SC2
O SC1
FLA G 1
1
24 KEY 6
2
23 KEY 5
3
22 KEY 4
4
21 KEY 3
5
20 KEY 2
6
19 KEY 1
7
18 N C
8
17 N C
9
16 N C
10
15 N C
11
14 FLA G 2
12
13 VSS
H T815D 0
2 4 D IP /S O P
2
March 15, 2000
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