Datasheet

73S8009C Data Sheet DS_8009C_025
Rev. 1.5 3
FUNCTIONAL DIAGRAM
Pin numbers reference the QFN32 package.
Figure 1: 73S8009C Block Diagram
SMART CARD I/O BUFFERS
AND SIGNAL LOGIC
SWITCH/LDO
REGULATOR
VOLTAGE
REFERENCE
CONTROL
LOGIC
RESET
BUFFER
CLOCK
BUFFER
R-C
OSC.
VCC FAULT
VPC FAULT
1.5MHz
VDD
VBUS
VCC
RST
CLK
PRES
PRES
I/O
AUX1
AUX2
CLKIN
I/OUC
AUX1UC
AUX2UC
RSTIN
RDY
GND
OFF
TEST2
bias currents
vref
GND
VBAT
VPC
LIN
VCC OK
VCC = 3
VCC = 5
POWER DOWN
ON/OFF
ON_OFF
S2 S1
OFF_REQ
OFF_ACK
VP
CS
TEST1
3010
12
29
25
23
15
26
27
19
18
16
14
13
22
21
20
17
28
3
2
1
7
6
9
11
8
32
5
4
24
CMDVCC5
CMDVCC3