参数资料
型号: 73S8009CN-32IMR/F
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, QCC32
封装: 5 X 5 MM, ROHS COMPLIANT, QFN-32
文件页数: 7/30页
文件大小: 349K
代理商: 73S8009CN-32IMR/F
DS_8009CN_026
73S8009CN Data Sheet
Rev. 1.4
15
CLKIN_from_uC
C7
0.47
F,
OFF_interrupt_to_uC
CLK track should be routed
far from RST, I/O, C4 and C8
NOTES:
1) VPC = 2.7V to 6.5V DC
I/OUC_to/from_uC
Card detection
switch is
normally closed
VDD
AUX1UC_to/from_uC
AUX2UC_to/from_uC
RSTIN_from_uC
Low ESR (<100mohms)
should be placed near the
SC connecter contact
CMDVCC%_from_uC
R2
20K
Smart Card Connector
1
2
3
4
5
6
7
8
9
10
V
CC
RS
T
CLK
C4
G
ND
VPP
I/O
C8
SW
-1
SW
-2
CMDVCC#_from_uC
RDY_status_to_uC
C3
See NOTE 1
0
C2
4.7
F
C6
27pF
C5
27pF
See
NOTE 2
2) Resistor footprint is included in case some filtering is needed on CLK
VPC
12
10
11
13
15
16
14
32 QFN
73S80009CN
1
2
3
4
5
6
7
8
CS
T
EST
1
GND
VPC
CLKIN
AUX2
RDY
SC
/US
B
PR
ES
I/O
AUX1
DM
CLK
RST
VCC
T
EST
2
CMDVCC%
RSTIN
V
DD
G
ND
OFF
AUX2UC
AUX1UC
I/OUC
CMDVCC#
VP
OFF_
A
C
K
OFF_
R
E
Q
ON/OFF
DP
LI
N
G
ND
17
18
19
20
21
23
24
22
9
28
27
25
26
32
31
29
30
10
F
10
H
VDD
_monitor_to_uC
See
NOTE 3
See
NOTE 3
3) Capacitors C5 and C6 are provisional and their footprints should be added for added noise rejection
if necessary.
4) Inductor must be rated for 400 mA maximum peak current.
See NOTE 4
5) VDD - 3.3V, +/- 0.3V, 40mA max. Schematic assumes VDD is monitored by the host controller.
Requires min two 0.1
F caps to gnd)
See NOTE 5
C2
0.1F
C1
0.1F
USB D+ to/from_uC
USB D- to/from_uC
SC
/USB_from_uC
ON/OFF_Control_from_uC
0
10K
47K
6) Resistors are necessary to provide isolation between powered host and "OFF" 73S8009CN. Signals
should be driven low in this condition.
See NOTE 6
7) The RDY signal is optional. A short delay before releasing RSTIN should suffice for the RDY
signal function.
See NOTE 7
C4
0.1F
Figure 4: Typical 73S8009CN Application Schematic without a Main System Switch
相关PDF资料
PDF描述
73S8009CN-32IM/F SPECIALTY ANALOG CIRCUIT, QCC32
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