73S8009CN-DB Maxim Integrated Products, 73S8009CN-DB Datasheet - Page 15

• Manufacturer Part Number: 73S8009CN-DB
• Description: BOARD DEMO FOR 73S8009CN
• Manufacturer: Maxim Integrated Products

Specifications of 73S8009CN-DB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS_8009CN_026
Rev. 1.4
NOTES:
1) VPC = 2.7V to 6.5V DC
2) Resistor footprint is included in case some filtering is needed on CLK
3) Capacitors C5 and C6 are provisional and their footprints should be added for added noise rejection
4) Inductor must be rated for 400 mA maximum peak current.
5) VDD - 3.3V, +/- 0.3V, 40mA max. Schematic assumes VDD is monitored by the host controller.
6) Resistors are necessary to provide isolation between powered host and "OFF" 73S8009CN. Signals
7) The RDY signal is optional. A short delay before releasing RSTIN should suffice for the RDY
ON/OFF_Control_from_uC
Requires min two 0.1µF caps to gnd)
if necessary.
should be driven low in this condition.
signal function.
OFF_interrupt_to_uC
AUX2UC_to/from_uC
AUX1UC_to/from_uC
VDD_monitor_to_uC
CMDVCC%_from_uC
CMDVCC#_from_uC
USB D+ to/from_uC
USB D- to/from_uC
RDY_status_to_uC
I/OUC_to/from_uC
SC/USB_from_uC
RSTIN_from_uC
CLKIN_from_uC
Figure 4: Typical 73S8009CN Application Schematic without a Main System Switch
See NOTE 6
10K
47K
47K
See NOTE 7
47K
0
VDD
0.1F
C1
See NOTE 5
73S80009CN
0.1F
C2
1
2
3
4
5
6
7
8
CMDVCC#
I/OUC
AUX1UC
AUX2UC
CMDVCC%
RSTIN
CLKIN
RDY
See NOTE 4
10µH
4.7µF
C2
VPC
ON/OFF
See NOTE 1
0.1F
VDD
AUX1
AUX2
C3
GND
VCC
RST
32 QFN
DM
switch is
I/O
Card detection
normally closed
24
23
22
21
20
19
18
17
R2
20K
10µF
C4
NOTE 2
0
See
Smart Card Connector
27pF
27pF
C5
C6
CLK track should be routed
far from RST, I/O, C4 and C8
NOTE 3
NOTE 3
0.47µF,
C7
See
See
73S8009CN Data Sheet
Low ESR (<100mohms)
should be placed near the
SC connecter contact
15