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V DD
J1 1
3.3 V or 5 V
C1
C2
100 nF
10 F
ground
J1 2
C4
C8
C3
C7
(2)
C2
C6
C3
100
C1
C5
nF
C5I
C1I
C6I
C2I
C7I
C3I
C8I
C4I
CARD READ
(1)
K1
K2
C4
100 nF
TDA8002C should be placed as close as possible to the card reader.
(1) Contact normally open.
(2) C3 close to pin V
of TDA8002C.
CC
(3) C4 close to C1 contact of card reader.
(4) C5 close to VUP pin of TDA8002C.
(5) C6 as close as possible to pins S1 and S2.
MODE
28
OFF
27
RSTIN
26
CMDVCC
25
V CC
24
RST
23
CLK
IC1
22
TDA8002CT/C
AUX1
21
CV/TV
20
PRES
19
I/O
18
VUP
17
S1
16
V DDA
(5)
15
C6
470 nF
(3)
(4)
C5
470 nF
CLK line may be shielded with respect to other lines.
Decoupling capacitors C7 and C8 may be placed as close as possible to pin V
A good ground plane is recommended.
Fig.16 Application diagram.
P1-0
P1-1
33 pF
33 pF
P1-2
P1-3
14.745
XTAL1
1
MHz
P1-4
XTAL2
2
P1-5
I/OUC
3
P1-6
AUX1UC
4
P1-7
CS
5
RST
ALARM
6
P3-0
CLKSEL
7
P3-1
CLKDIV1
8
P3-2
CLKDIV2
9
P3-3
STROBE
10
P3-4
CLKOUT
11
P3-5
DGND1
12
P3-6
AGND
13
P3-7
S2
14
XTAL2
XTAL1
V SS
C7
C8
100 nF
10 F
V DD
V DD
V CC
1
40
P0-0
2
39
P0-1
3
38
P0-2
4
37
P0-3
5
36
P0-4
6
35
P0-5
7
34
P0-6
8
33
P0-7
9
32
IC2
EA
10
31
80C51
ALE
11
30
PSEN
12
29
P2-7
13
28
P2-6
14
27
P2-5
15
26
P2-4
16
25
P2-3
17
24
P2-2
18
23
P2-1
19
22
P2-0
20
21
FCE195
.
DDA
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