73S8009R Data Sheet
System Controller Interface
DS_8009R_056
Regulator Power Supply (VPC):
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•
•
•
•
Five signal images of the card signals
(RSTIN, CLKIN, IOUC, AUX1UC, AUX2UC)
•
Class A-B-C readers: 5V, 3V and 1.8V
cards: 4.75 V to 6.0 V
Two inputs select card voltage (CMDVCC%,
CMDVCC#)
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•
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Digital Interface (VDD): 2.7 V to 3.6 V
6 kV ESD protection on the card interface
SO28 or QFN20 package
Two Interrupt outputs (OFF, RDY) inform the
system controller of card presence / faults
and the interface status
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•
Chip select input (CS)
Power down input (PWRDN)
FUNCTIONAL DIAGRAM
VDD
[17] 28
VPC
[9] 15
VCC FAULT
VPC FAULT
VOLTAGE REFERENCE
vref
LDO
bias currents
REGULATOR
20 [12]
GND
8 [2]
9 [3]
CMDVCC5
CMDVCC3
22 [14]
VCC
CONTROL
LOGIC
4 [20]
12 [6]
21 [13]
OFF
RDY
RESET
BUFFER
RST
13 [7]
1 [18]
PWRDN
CS
19 [11]
CLOCK
CLK
BUFFER
10 [4]
11 [5]
RSTIN
CLKIN
26 [16]
PRES
16 [10]
PRES
1.5MHz
OVER
TEMP FAULT
TEMP
R-C
OSC.
25 [15]
I/O
5 [1]
IOUC
AUX1UC
AUX2UC
24
6
7
AUX1
SMART CARD I/O BUFFERS
23
AUX2
27
GND
Pin numbers reference the SO28 package
[Pin numbers] reference the QFN20 Package
Figure 1: 73S8009R Block Diagram
Rev. 1.3
2
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
