Alcor Micro AU9540 Technical Reference Manual - Page 13
Browse online or download pdf Technical Reference Manual for Controller Alcor Micro AU9540. Alcor Micro AU9540 18 pages. Usb smart card reader controller
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5
.
3
D
C
E
l
e
c
t
r
i
c
5
.
3
D
C
E
l
e
c
t
r
i
c
Table 5.3 DC Electrical Characteristics of 3.3V I/O Cells
SYMBOL
PARAMETER
V
Power supply
D33P
V
Input low voltage
il
V
Input high voltage
ih
V
Output low voltage
ol
V
Output high voltage
oh
R
Input pull-up resistance
pu
R
Input pull-down resistance PU=low, PD=high
pd
I
Input leakage current
in
Tri-state output leakage
I
oz
5
.
4
P
o
w
e
r
C
o
n
5
.
4
P
o
w
e
r
C
o
n
Status
With card present, before
being suspended.
Without card present, before
being suspended.
After being suspended with
smart card present
After being suspended without
smart card present
With card present, before
being suspended.
Without card present
After being suspended with
smart card present
a
l
C
h
a
r
a
c
t
e
r
i
s
a
l
C
h
a
r
a
c
t
e
r
i
s
CONDITIONS
∣I
∣I
PU=high, PD=low
current
s
u
m
p
t
i
o
n
s
u
m
p
t
i
o
n
Table 5.4 Power Consumption
Mode
Normal Mode
Normal Mode
Normal Mode
Normal Mode
Power Saving
Mode
Power Saving
Mode
Power Saving
Mode
AU9540 USB Smart Card Reader V1.6
t
i
c
s
o
f
3
.
3
V
I
/
t
i
c
s
o
f
3
.
3
V
I
/
3.3V I/O
LVTTL
∣=2~16mA
ol
∣=2~16mA
oh
V
= V
or 0
in
D33P
Power Current
27.9 mA
19.2 mA
390 μA
350 μA
27.9 mA
240 μA
390 μA
O
C
e
l
l
s
O
C
e
l
l
s
Limits
MIN
TYP
MAX
3.0
3.3
3.6
0.8
2.0
0.4
2.4
55
75
110
40
75
150
-10
10
±1
-10
10
±1
Note
This value may
vary with different
card.
This value may
vary with different
card.
This value may
vary with different
card.
This value may
vary with different
card.
UNIT
V
V
V
V
V
KΩ
KΩ
μA
μA
9