DS_1217F_002
73S1217F Data Sheet
The built-in ICC Interface has a linear regulator (VCC generator) capable of driving 1.8, 3.0 and 5.0V smart
cards in accordance with the ISO 7816-3 and EMV4.0 standards. This converter uses the VP (5.5V
nominal) input supply source. See the power supply management section above for more detail.
Auxiliary I/O lines C4 and C8 are only provided for the built-in interface. If support for the auxiliary lines is
necessary for the external smart card interface, they need to be handled manually through the USR GPIO
pins. The external 73S8010x devices directly connect the I/O (SIO) and clock (SCLK) signals and control
is handled via the I2C interface.
Figure 17 shows how multiple 73S8010x devices can be connected to the 73S1217F.
VPC
VPC
PRES
PRES
VCC
RST
CLK
SC1
C4
C8
I/O
GND
SIO
SCLK
INT
PRES
73S1217F
SCL
SDA
IOUC
SC(n)
73S8010
XTALIN
SAD(0:2)
INT
PRES
SCL
SDA
SC3
73S8010
IOUC
XTALIN
SAD(0:2)
INT
PRES
INT3
SCL
SDA
SDA
SCL
SC2
73S8010
IOUC
XTALIN
SAD(0:2)
Figure 17: Smart Card Interface Block Diagram
Rev. 1.2
79
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
