DS_1215F_003
73S1215F Data Sheet
Pin Name
Description
LED(3:0)
0
1
IO
Figure 36 Special output drivers, programmable pull-down
current to drive LEDs. May also be used as inputs.
1
3
3
4
2
2
3
4
RXD
17
11
12
I
O
I
Figure 33 Serial UART Receive data pin.
Figure 30 Serial UART Transmit data pin.
Figure 33 General purpose interrupt input.
Figure 33 General purpose interrupt input.
TXD
INT3
INT2
SIO
18
51
52
50
32
31
I
IO
Figure 29 IO data signal for use with external Smart Card
interface circuit such as 73S8024.
SCLK
PRES
48
64
30
43
O
I
Figure 30 Clock signal for use with external Smart Card interface
circuit.
Figure 41 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.
PRES
56
35
I
Figure 42 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.
CLK
RST
IO
57
59
63
62
61
60
36
38
42
41
40
39
O
O
Figure 39 Smart card clock signal.
Figure 39 Smart card Reset signal.
IO
Figure 40 Smart card Data IO signal.
Figure 40 Auxiliary Smart Card IO signal (C4).
Figure 40 Auxiliary Smart Card IO signal (C8).
AUX1
AUX2
VCC
IO
IO
PSO
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.
GND
VPC
58
55
37 GND
Smart Card Ground.
34
PSI
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.
TBUS(3:0)
IO
Trace bus signals for ICE.
0
1
2
3
53
49
47
43
RXTX
ERST
ISBR
TCLK
45
40
68
41
28
25
IO
IO
IO
I
ICE control.
ICE control.
ICE control.
ICE control.
26
Rev. 1.4
9
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
