73S1121F
EMV Smart-Card Terminal Controller
with Built-in Dual ISO-7816 Interface and USB
DATA SHEET
Pin
Total
Pins
Pin Name
Number
128 TQFP
Type Description
CLK1
IO1
117
116
113
1
1
1
O
I/O
O
Card interface 1 - Clock signal
Card interface 1 - I/O signal
Card interface 1 - RST signal
RST1
Card interface 1 - VCC signal
VCC1
112
108
1
1
O
Must be decoupled to GND with a 6.8µF low-ESR capacitor
Card interface 1 – voltage supply for interface circuits – take from VCC1
filter capacitor
VCCIN1
C41
114
115
96
1
1
1
1
1
I/O
I/O
O
Card interface 1 - Auxiliary I/O signal (card C4 signal)
Card interface 1 - Auxiliary I/O signal (card C8 signal)
Card interface 2 - Clock signal
C81
CLK2
IO2
98
I/O
O
Card interface 2 - I/O signal
RST2
101
Card interface 2 - RST signal
Card interface 2 - VCC signal
VCC2
102
106
1
1
O
Must be decoupled to GND with a 6.8µF low-ESR capacitor
Card interface 2 - voltage supply for interface circuits – take from VCC2
filter capacitor
VCCIN2
GND_RTN
C42
107
100
99
1
1
1
Ground connection for SC power converters
I/O
I/O
Card interface 2 – Auxiliary I/O signal (card C4 signal)
Card interface 2 – Auxiliary I/O signal (card C8 signal)
C82
Card interface 1 - Presence contact input pin. Programmable polarity
(to be connected according to the card presence switch with a pull-up /
pull-down)
DET_CARD1
DET_CARD2
81
84
1
1
I
I
Card interface 2 - Presence contact input pin. Programmable polarity
(to be connected according to the card presence switch with a pull-up /
pull-down)
Digital I/O line for external card interfaces. Open drain with internal pull-
SIO
87
88
85
1
1
1
I/O
O
up configuration – no external pull-up required
SCLK
SC4
Digital I/O line for external card interfaces.
Digital auxiliary I/O line for external card interfaces (C4 I/O). Open drain
with internal pull-up configuration – no external pull-up required
Digital auxiliary I/O line for external card interfaces (C8 I/O). Open drain
with internal pull-up configuration – no external pull-up required
I/O
SC8
86
1
I/O
TOTAL
128
Page: 10 of 25
© 2005 TERIDIAN Semiconductor Corporation
Rev 2.3
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
