73S1209F Maxim, 73S1209F Datasheet - Page 103

• Manufacturer Part Number: 73S1209F
• Description: The 73S1209F is a self-contained, SoC smart card reader IC that is an ideal solution for serially connected ISO 7816 design
• Manufacturer: Maxim

DS_1209F_004
2 Typical Application Schematics
Rev. 1.4
1
1
1
1
1
1
30-SWITCH
KEYPAD
S1
SW_MOM
S7
SW_MOM
S16
SW_MOM
S21
SW_MOM
S26
SW_MOM
S11
SW_MOM
5.0V Power
3.3V Power
F1
1
4
7
.
W
3
3
3
3
3
3
DB9_RS232
P1
SERIAL
PORT
1
1
1
1
1
1
5
9
4
8
3
7
2
6
1
5.0V
3.3V
S2
SW_MOM
S8
SW_MOM
S12
SW_MOM
S17
SW_MOM
S22
SW_MOM
S27
SW_MOM
F2
2
5
8
0
X
3
3
3
3
3
3
3.3V
C2
0.1uF
C4
0.1uF
1
1
1
1
1
1
S3
SW_MOM
S6
SW_MOM
S13
SW_MOM
S18
SW_MOM
S23
SW_MOM
S28
SW_MOM
F3
3
6
9
/
Y
27
10
12
11
13
14
4
5
6
7
8
9
3
3
3
3
3
3
V+
V-
T1OUT
T2OUT
T3OUT
T4OUT
T5OUT
R1IN
R2IN
R3IN
ENB
SHDNB
3.3V
Figure 24: 73S1209F Typical PINpad, Smart Card Reader Application Schematic
1
1
1
1
1
1
MAX3237CAI
R1OUTBF
ON/CE
DOWN
ENTER
S4
SW_MOM
S9
SW_MOM
S14
SW_MOM
S19
SW_MOM
S24
SW_MOM
S29
SW_MOM
C1
0.1uF
U1
UP
CLR
Z
R1OUT
R2OUT
R3OUT
T1IN
T2IN
T3IN
T4IN
T5IN
C1+
C2+
C1-
C2-
3
3
3
3
3
3
28
25
1
3
24
23
22
19
17
16
21
20
18
1
1
1
1
1
1
SW_MOM
SW_MOM
SW_MOM
SW_MOM
SW_MOM
SW_MOM
S5
S10
S15
S20
S25
S30
A
B
C
D
E
F
C3
0.1uF
C5
0.1uF
3
3
3
3
3
3
USR6
USR5
USR4
USR3
USR2
3.3V
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
TXD
COL4
USR7
ROW0
ROW1
USR6
ROW2
GND
N/C
N/C
VDD
USR5
USR4
USR3
USR8
USR2
ROW3
73S1209F
0.1uF
C14
12.000MHz
Y1
3.3V
C15
0.1uF
PRESB
RESET
TBUS0
R1
1M
C6
22pF
PRES
ISBR
AUX1
AUX2
TEST
C16
0.1uF
VDD
VCC
GND
INT2
SEC
RST
CLK
VPC
R5 20K
D1
D2
I/O
U3
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
C7
22pF
LED1
LED0
C8
1uF
+
C17
10uF
C10
10uF
3.3V
C9
0.1uF
+
R2
C18
0.1uF
5.0V
10k
5.0V
2
R4
20K
RV1
10K
U2
LCD
BRIGHTNESS
ADJUST
R3
0
C11
27p
OPTIONAL LCD DISPLAY SYSTEM
16 CHARACTER BY 2 LINES
C12
27p
1uF
C13
73S1209F Data Sheet
3.3V
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
Smart Card Connector
J1
C1
C2
C3
C5
C6
C7
SW1
SW2
J2
VCC
RST
CLK
C4
GND
VPP
I/O
C8
SW-1
SW-2
SMARTCARD
SLOT #1
SIM/SAM Connector
103