73S1215F Maxim, 73S1215F Datasheet - Page 9

• Manufacturer Part Number: 73S1215F
• Description: The Teridian 73S1215F is a self-contained SoC smart card reader IC that is an ideal solution for any USB-connected ISO 7816 design
• Manufacturer: Maxim

DS_1215F_003
Rev. 1.4
Pin Name
LED(3:0)
0
1
2
3
RXD
TXD
INT3
INT2
SIO
SCLK
PRES
PRES
CLK
RST
IO
AUX1
AUX2
VCC
GND
VPC
TBUS(3:0)
0
1
2
3
RXTX
ERST
ISBR
TCLK
17
18
51
52
50
48
64
56
57
59
63
62
61
60
58
55
53
49
47
43
45
40
68
41
1
3
2
4
11
12
32
31
30
43
35
36
38
42
41
40
39
37
34
28
25
26
3
4
GND
PSO
PSI
IO
IO
IO
IO
IO
IO
IO
IO
IO
O
O
O
O
I
I
I
I
I
I
Figure 36
Figure 33
Figure 30
Figure 33
Figure 33
Figure 29
Figure 30
Figure 41
Figure 42
Figure 39
Figure 39
Figure 40
Figure 40
Figure 40
Description
Special output drivers, programmable pull-down
current to drive LEDs. May also be used as inputs.
Serial UART Receive data pin.
Serial UART Transmit data pin.
General purpose interrupt input.
General purpose interrupt input.
IO data signal for use with external Smart Card
interface circuit such as 73S8024.
Clock signal for use with external Smart Card interface
circuit.
Smart Card presence. Active high. Note: the pin has a
very weak pull down resistor. In noisy environments,
an external pull down may be desired to insure against
a false card event.
Smart Card presence. Active low. Note: the pin has a
very weak pull up resistor. In noisy environments, an
external pull up may be desired to insure against a
false card event.
Smart card clock signal.
Smart card Reset signal.
Smart card Data IO signal.
Auxiliary Smart Card IO signal (C4).
Auxiliary Smart Card IO signal (C8).
Smart Card VCC supply voltage output. A 0.47μF
capacitor is required and should be located at the
smart card connector. The capacitor should be a
ceramic type with low ESR.
Smart Card Ground.
Smart Card LDO regulator power supply source. A
10μF and a 0.1μF capacitor are required at the VPC
input. The 10μF capacitor should be a ceramic type
with low ESR.
Trace bus signals for ICE.
ICE control.
ICE control.
ICE control.
ICE control.
73S1215F Data Sheet
9