HT81003_00 データシートの表示（PDF） - Holtek Semiconductor
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HT81003_00 Datasheet PDF : 11 Pages
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Block Diagram
Preliminary
HT81003/HT81R03
TG 1
I/O 1
O SCI
VPP
OE
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
O TP
C ir c u it
( fo r H T 8 1 R 0 3 o n ly )
A u d io
C o n tr o lle r
R O M 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
D a ta R O M
S e le c to r
VDD
VSS
I/O 2
O U T1
O U T2
Pin Assignment
NC
VPP
NC
VDD
NC
O SCI
KEY1
I/O 1
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
H T81R 03
1 6 D IP
NC
OE
VSS
O U T1
VDD
O U T2
VSS
I/O 2
Pad Assignment
VDD
1
11 12
O SCI 2
KEY1 3
4
(0 ,0 )
10 V S S
9 O U T1
8 VDD
7 O U T2
5
6
Chip size: 1020 ´ 1995 (mm)2
* The IC substrate should be connected to VSS
in the PCB layout artwork.
2
July 24, 2000
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