HT1647A 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT1647A Datasheet PDF : 19 Pages
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Block Diagram
O SCO
O SCI
CS
RD
WR
DB0
DB3
VDD
VSS
BZ
BZ
PATENTED
C o n tro l
&
T im in g
C ir c u it
D is p la y R A M
L C D D r iv e r /
B ia s C ir c u it
T o n e F re q u e n c y
G e n e ra to r
W a tc h d o g T im e r
&
T im e B a s e G e n e r a to r
COM 0
C O M 15
SEG 0
S E G 63
V LC D
IR Q
N o te :
C S : C h ip s e le c tio n
B Z , B Z : T o n e o u tp u ts
W R , R D : W R IT E c lo c k , R E A D c lo c k
D B 0 ~ D B 3 : D a ta b u s
C O M 0 ~ C O M 1 5 , S E G 0 ~ S E G 6 3 : L C D o u tp u ts
IR Q : T im e b a s e o r W D T o v e r flo w o u tp u t
Pin Assignment
HT1647A
CS
RD
WR
DB0
DB1
DB2
DB3
VSS
O SCI
O SCO
VDD
V LC D
IR Q
BZ
BZ
T1
T2
T3
T4
NC
COM 0
COM 1
COM 2
COM 3
COM 4
1 1 0 0 9 9 9 8 9 7 9 6 9 5 9 4 9 3 9 2 9 1 9 0 8 9 8 8 8 7 8 6 8 5 8 4 8 3 8 2 8 1 8 0 7 9 7 8 7 7 7 67 5
2
74
3
73
4
72
5
71
6
70
7
69
8
68
9
67
10
66
11
65
12
13
14
H T1647A
1 0 0 L Q F P -A
64
63
62
15
61
16
60
17
59
18
58
19
57
20
56
21
55
22
54
23
53
24
52
25
51
26 27 28 29 30 31 32 33 34 35 3637 38 39 40 41 42 43 4445 46 4748 49 50
S E G 38
S E G 37
S E G 36
S E G 35
S E G 34
S E G 33
S E G 32
S E G 31
S E G 30
S E G 29
S E G 28
S E G 27
S E G 26
S E G 25
S E G 24
S E G 23
S E G 22
S E G 21
S E G 20
S E G 19
S E G 18
S E G 17
S E G 16
S E G 15
S E G 14
Rev. 1.40
2
April 29, 2011
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