73S1121F
EMV Smart-Card Terminal Controller
with Built-in Dual ISO-7816 Interface and USB
DATA SHEET
PIN DESCRIPTION
Pin
Total
Pins
Pin Name
Number
Type Description
128 TQFP
Card interface 1 - Charge-pump capacitor positive node
CC1P
CC1N
CC2P
111
1
1
1
1
I/O
I/O
I/O
I/O
(0.68µF Low ESR <100mΩ)
109
103
Charge-pump capacitor 1 Negative Node
Card interface 2 - Charge-pump capacitor positive node
(0.68µF Low ESR <100mΩ)
CC2N
105
32
33
35
36
39
24
25
27
28
29
30
26
31
50
53
56
59
63
68
72
77
34
118
124
125
94
93
92
91
Charge-pump capacitor 2 Negative Node
COL (4)
COL (3)
COL (2)
COL (1)
COL (0)
ROW (5)
ROW (4)
ROW (3)
ROW (2)
ROW (1)
ROW (0)
TXD
5
O
Keypad column drive lines
6
I
Keypad row sense lines
1
1
O
I
Transmit data - Serial output port from the 73S1121F serial UART
Receive data - Serial input port to the 73S1121F serial UART
RXD
USR (7)
USR (6)
USR (5)
USR (4)
USR (3)
USR (2)
USR (1)
USR (0)
INT2
8
I/O
User programmable I/O port.
1
1
1
1
I
External interrupt input pin
INT0
I
External interrupt input pin
USB_D-
USB_D+
GPIO (3)
GPIO (2)
GPIO (1)
GPIO (0)
I/O
I/O
USB D- Requires a 33 Ω series resistor
USB D+ Requires a 33 Ω series resistor
4
I/O
General purpose I/O with separate power supply
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© 2005 TERIDIAN Semiconductor Corporation
Rev 2.3
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
