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
11; 37; 65;
90; 123
VND
5
5
1
1
1
2
1
GND
Supply
GND
Digital ground
Digital power supply. 2.7V - 3.6V
8; 15; 48;
73; 119
Must be at least equal to 3V when using the USB interface.
Each pin to be decoupled to VND with a 0.1µF capacitor.
VPD
VNA
VPA
VPG
VPC
VNC
6
126
Analog ground
Analog power supply. 2.7V - 3.6V
To be decoupled to VNA with a 0.1µF capacitor.
Supply
GPIO power supply: 2.7V - 5.5V. Only connect if GPIO used.
95
Supply VPG is the reference voltage for interfacing GPIOs with external devices
operating on a voltage different than VPD.
DC/DC Step-up Converter power supply (2.7 - 3.6V). Each pin to be
Supply
104; 110
97
decoupled to VNC with one 0.1µF and one 10µFcapacitor.
GND
DC/DC Step-up Converter ground
32.768KHz crystal input.
OSCIN32
OSCOUT32
OSCIN12
13
14
9
1
1
1
I
O
I
Can drive clock in and leave OSCOUT32 unconnected
32.768KHz crystal output. Leave unconnected if not using a crystal
12MHz crystal input.
Can drive clock in and leave OSCOUT12 unconnected
OSCOUT12
OSCOUT
10
16
1
1
O
O
12MHz crystal output. Leave unconnected if not using a crystal
CPU clock output pin. Only available when EA = 0
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© 2005 TERIDIAN Semiconductor Corporation
Rev 2.3
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
