DS_8009CN_026
73S8009CN Data Sheet
1 Pinout
The 73S8009CN is supplied as a 32-pin QFN package.
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
ON/OFF
DM
I/OUC
AUX1UC
AUX2UC
I/O
AUX1
AUX2
VCC
RST
CMDVCC5
CMDVCC3
RSTIN
TERIDIAN
73S8009CN
CLKIN
GND
RDY
Figure 2: 73S8009CN 32-Pin QFN Pinout
Table 1 describes the pin functions for the device.
Table 1: 73S8009CN Pin Definitions
Equivalent
Circuit
Pin
Name
Pin
Number
Type
IO
Description
Card Interface
I/O
22
21
Figure 17
Figure 17
Card I/O: Data signal to/from smart card. Includes
an 11kΩ pull-up resistor to VCC
Will be tri-stated when SC/USB is set low.
AUX1
AUX2
RST
IO
AUX1: Auxiliary data signal to/from smart card for
synchronous smart card operation. Smart card USB
DP signal for IS0-7816-12 USB smart card operation.
Includes an 11kΩ pull-up resistor to VCC for
synchronous / asynchronous operation only.
20
18
IO
O
Figure 17
Figure 16
AUX2: Auxiliary data signal to/from smart card for
synchronous smart card operation. Smart card USB
DM signal for IS0-7816-12 USB smart card
operation. Includes an 11kΩ pull-up resistor to VCC
for synchronous / asynchronous operation only.
Card reset: provides reset (RST) signal to card. RST
is the pass through signal on RSTIN. Internal control
logic will hold RST low when card is not activated or
VCC is too low. Will be tri-stated when SC/USB is
set low.
Rev. 1.4
5
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
