參數(shù)資料
型號(hào): 73S8009CN-32IMR/F
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 模擬信號(hào)調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, QCC32
封裝: 5 X 5 MM, ROHS COMPLIANT, QFN-32
文件頁(yè)數(shù): 6/30頁(yè)
文件大?。?/td> 349K
代理商: 73S8009CN-32IMR/F
73S8009CN Data Sheet
DS_8009_026
14
Rev. 1.4
CLKIN_from_uC
C8
0.47
F,
OFF_ACK_from_uC
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
C4
See NOTE 1
OFF_REQ_to_uC
0
C7
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
Pushbutton Switch
SW1
VDD
_supply_to_uC
See
NOTE 3
See
NOTE 3
3) Capacitors C4 and C5 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 supplies power to 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
6) The RDY signal is optional. A short delay before releasing RSTIN should suffice for the RDY
signal function.
C3
0.1F
See NOTE 6
Figure 3: Typical 73S8009CN Application Schematic with a Main System Switch
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