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UTDA8024 Datasheet(PDF) 6 Page - Unisonic Technologies

Part # UTDA8024
Description  IC CARD INTERFACE
PDF  15 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UTDA8024 Datasheet(HTML) 6 Page - Unisonic Technologies

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UTDA8024
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
6 of 15
www.unisonic.com.tw
QW-R113-014.a
ELECTRICAL CHARACTERISTICS
VDD=3.3V; VDDP=5V; TAMB=25°C; fXTAL=10MHz; all currents flowing into the IC are positive; see Note 1; unless
otherwise specified.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Temperature
Ambient Temperature
TAMB
-25
+85
°C
Supplies
Supply Voltage
VDD
2.7
6.5
V
VCC=5V, CC
I
<50mA
4.0
5.0
6.5
V
DC/DC Converter Supply Voltage
VDDP
VCC=5V, CC
I
<20mA
2.5
6.5
V
Card Inactive
1.2
mA
Supply Current
IDD
Card Active, fCLK=fXTAL,
CL=30pF
1.5
mA
Inactive Mode
0.1
mA
active mode, fCLK=fXTAL,
CL=30Pf, CC
I=0
10
mA
VCC=5V, CC
I
=80mA
200
mA
DC/DC Converter Supply Current
IDDP
VCC=3V, CC
I
=65mA
100
mA
Falling Threshold Voltage on VDD
Vth2
No External Resistors at
Pin PORADJ, VDD Level Falling
2.35
2.45
2.55
V
Hysteresis of Threshold Voltage
Vth2
Vhys2
No External Resistors at
Pin PORADJ
50
100
150
mV
Pin PORADJ (Note 2)
External Rising Threshold Voltage
on VDD
Vth(ext)(rise)
External Resistor Bridge at
Pin PORADJ, VDD Level Rising
1.240
1.28
1.310
V
External Falling Threshold Voltage
on VDD
Vth(ext)(fall)
External Resistor Bridge at
Pin POR ADJ, VDD Level
Falling
1.190
1.22
1.26
V
Hysteresis of Threshold Voltage
Vth(ext)
Vhys(ext)
External Resistor Bridge at
Pin POR ADJ
30
60
90
mV
Hysteresis of Threshold Voltage
Vth(ext) Variation with Temperature
∆Vhys(ext)
External Resistor Bridge at
Pin PORADJ
0.25
mV/K
No External Resistors at
Pin PORADJ
4
8
12
ms
Width of Internal Power-On
Reset Pulse
tw
External Resistor Bridge at
Pin PORADJ
8
16
24
ms
VPORADJ<0.5V
-0.1
4
10
µA
Leakage Current On Pin PORADJ
IL(PORADJ)
VPORADJ>1V
-1
+1
µA
Total Power Dissipation
Ptot
Continuous Operation,
TAMB=-25~+85°C
0.56
W
DC/DC converter
Clock Frequency
fCLK
Card Active
2.2
3.2
MHz
5V Card
5.2
5.8
6.2
V
Threshold Voltage for Voltage
Doubler to Change to Voltage
Follower
Vth(vd-vf)
3V Card
3.8
4.1
4.4
V
VCC=5V
5.2
5.7
6.2
V
Output Voltage On Pin VUP
(Average Value)
VUP(av)
VCC=3V, VDDP=3.3V
3.5
3.9
4.3
V



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