HT814D0 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT814D0 Datasheet PDF : 15 Pages
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Block Diagram
KEY1
K E Y 12
O SC1
O SC2
AUD
D ebounce
C ir c u it
O n e -s h o t
O s c illa to r
C ir c u it
T im e B a s e
G e n e ra to r
DAC &
O u tp u t
C o n tro l
S peech R O M
4 8 K ´ 6 - b it
K e y T a b le
T a b le R O M
5 0 8 ´ 1 4 - 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
KEY7
KEY8
KEY9
K E Y 10
K E Y 11
K E Y 12
NC
VDD
AUD
O SC2
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
H T814D 0
2 0 D IP /S O P
KEY6
KEY5
KEY4
KEY3
KEY2
KEY1
FLA G 2
VSS
FLA G 1
O SC1
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 K E Y 6
2
23 K E Y 5
3
22 K E Y 4
4
21 K E Y 3
5
20 K E Y 2
6
19 K E Y 1
7
18 N C
8
17 N C
9
16 N C
10
15 N C
11
14 FLA G 2
12
13 V S S
H T814D 0
2 4 D IP /S O P
HT814D0
2
March 15, 2000
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