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LTC1955 Datasheet(PDF) 18 Page - Linear Technology

Part # LTC1955
Description  Dual Smart Card Interface with Serial Control
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1955 Datasheet(HTML) 18 Page - Linear Technology

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LTC1955
18
sn1955 1955fs
APPLICATIO S I FOR ATIO
Figure 7. Multiple LTC1955s Daisy Chained Together
4-WIRE
COMMAND
INTERFACE
4-WIRE
CARD
INTERFACE
SMART CARD
VENDOR CARD
LTC1955
4.7
µF
4.7
µF
1
µF
DIN
DOUT
SCLK
LD
DATA
RIN
SYNC
ASYNC
CPO
INPUT
POWER
FAULT
VBATT
GND
DVCC
UNDERV
FAULT
PRES A
PRES B
C+
C–
SMART CARD
VENDOR CARD
LTC1955
4.7
µF
DIN
DOUT
SCLK
LD
DATA
RIN
SYNC
ASYNC
CPO
VBATT
GND
DVCC
UNDERV
FAULT
VENDOR CARD
VENDOR CARD
1955 F07
LTC1955
4.7
µF
DIN
DOUT
SCLK
LD
DATA
RIN
SYNC
ASYNC
CPO
VBATT
GND
DVCC
UNDERV
FAULT
4.7
µF
4.7
µF
12, 13
9, 10
12, 13
9, 10
12, 13
9, 10
1
21
2
24
23
24
23
24
23
1
27
28
26
25
29
30
32
31
1
27
28
26
25
29
30
32
31
11
14
1
µF
PRES A
PRES B
C+
C–
21
2
11
14
1
µF
PRES A
PRES B
C+
C–
21
2
11
14
27
28
26
25
29
15
15
15
30
32
31



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