UM3302H/UM3302Q
2-Bit Bidirectional Voltage-Level Translator with Auto Direction
sensing and ±15kV ESD Protection
UM3302H
CSP8 1.90×0.90
UM3302Q
QFN8 1.40×1.20
General Description
The UM3302, a ESD protected level translator, provides the level shifting necessary to allow data
transfer in multi-voltage system. This 2-channel noninverting translator uses two separate
configurable power-supply rails. The A port is designed to track V
CCA
. V
CCA
accepts any supply
voltage from 1.2V to 3.6V. The B port is designed to track V
CCB
. V
CCB
accepts any supply voltage
from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any
of the 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V voltage nodes. Both I/O ports are auto-sensing; thus,
no direction pin is required, making it ideal for data transfer between low-voltage ASICs /PLDs
and higher voltage systems.
The UM3302 operates at a guaranteed data rate of 20Mbps over the entire specified operating
voltage range. Within specific voltage domains, higher data rates are up to 100Mbps.
When the output-enable (OE) input is low, all outputs are placed in the high-impedance state. The
UM3302 is designed so that the OE input circuit is designed to track V
CCA
.
To ensure the high-impedance state during power up or power down, OE should be tied to GND
through a pull down resistor; the minimum value of the resistor is determined by the
current-sourcing capability of the driver.
The UM3302H is a dual channel level translator available in 1.90mm×0.90mm CSP8 bump
package while UM3302Q is available in 1.40mm×1.20mm QFN8 package.
Applications
Low-Voltage ASIC Level Translation
Cell-phone Cradles
Portable POS Systems
Portable Communication Devices
Low-Cost Serial Interfaces
Cell-Phones
GPS
Telecommunications Equipment
Features
1.2V to 3.6V on A Port and 1.65V to 5.5V
on B Port (V
CCA
≤V
CCB
)
V
CC
Isolation Feature – If Either V
CC
Input is at GND, All Outputs are in the
High-Impedance State
OE Input Circuit Referenced to V
CCA
Low Power Consumption
Latch-Up Performance Exceeds 100mA
±15kV ESD Protection on B ports
Pin Configurations
(Bottom View)
Top View
M: Month Code
UM3302H
CSP8 1.90×0.90
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http://www.union-ic.com Rev.07 Sep.2013
1/13
UM3302H/UM3302Q
(Top View)
M: Month Code
UM3302Q
QFN8 1.40×1.20
Pin Description
Pin No
UM3302H UM3302Q
1
6
2
4
3
4
5
6
7
8
1
3
2
5
8
7
Pin Name
B2
GND
V
CCA
A2
A1
OE
V
CCB
B1
Function
Input/Output B. Referenced to V
CCB
Ground
A-Port supply voltage. 1.2V≤V
CCA
≤3.6V
and
V
CCA
≤V
CCB
Input/Output A. Referenced to V
CCA
Input/Output A. Referenced to V
CCA
3-state output enable. Pull OE low to place all outputs in
3-state mode. Referenced to V
CCA
B-Port supply voltage. 1.65V≤V
CCB
≤5.5V
Input/Output B. Referenced to V
CCB
Ordering Information
Part Number
UM3302H
UM3302Q
Packaging Type
CSP8 1.90×0.90
QFN8 1.40×1.20
Marking Code
EBB
Q
Shipping Qty
3000pcs/7Inch
Tape & Reel
________________________________________________________________________
http://www.union-ic.com Rev.07 Sep.2013
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UM3302H/UM3302Q
Absolute Maximum Ratings (Note 1)
Over operating free-air temperature range (unless otherwise noted)
Symbol
V
CCA
V
CCB
V
I
Parameter
Supply Voltage Range
Supply Voltage Range
Input Voltage Range (Note 2)
Voltage Range applied to any output
in the high-impedance or power-off
state (Note 2)
Voltage Range applied to any output
in the high or low state (Note 2,3)
Input Clamp Current
Output Clamp Current
Continuous Output Current
Continuous Current through V
CCA
, V
CCB
, or GND
T
OP
T
STG
Operating Temperature Range
Storage Temperature Range
A port
B port
A port
B port
A port
B port
V
I
0
V
O
0
Value
-0.5 to +4.5
-0.5 to +6.5
-0.5 to +4.5
-0.5 to +6.5
-0.5 to +4.5
-0.5 to +6.5
-0.5 to ( V
CCA
+0.5)
-0.5 to ( V
CCB
+0.5)
-50
-50
±50
±100
-40 to +85
-65 to +150
Unit
V
V
V
V
O
V
V
O
I
IK
I
OK
I
O
V
mA
mA
mA
mA
°C
°C
Note 1: Stresses beyond those listed under "absolute maximum ratings" may cause permanent
damage to the device. These are stress ratings only, and functional operation of the
device at these or any other conditions beyond those indicated under "recommended
operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for
extended periods may affect device reliability.
Note 2: The input and output negative-voltage ratings may be exceeded if the input and output
current ratings are observed.
Note 3: The value of V
CCA
and V
CCB
are provided in the recommended operating conditions table.
Recommended Operating Conditions (Note 1, 2)
Symbol
V
CCA
V
CCB
V
IH
V
IL
Parameter
Supply Voltage
High Level Input
Voltage
Low Level Input
Voltage
Voltage range applied
to any output in the
high-impedance or
power off state
Input Transition
Rise or Fall Time
Data Inputs
OE Input
Data Inputs
OE Input
A Port
1.2V to 3.6V
B Port
A-Port Inputs
B-Port Inputs
1.2V to 3.6V
1.2V to 3.6V
1.65V to 5.5V
1.65V to 1.95V
4.5V to 5.5V
1.65V to 5.5V
0
5.5
40
40
30
ns/V
1.2V to 3.6V
1.2V to 3.6V
1.2V to 3.6V
1.2V to 3.6V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
V
CCA
V
CCB
Min
Max
Unit
V
V
V
V
V
V
V
1.2
3.6
1.65
5.5
(Note3)
V
CCI
×0.65
V
CCI
V
CCA
×0.65
0
0
0
5.5
V
CCI
×0.35
V
CCA
×0.35
3.6
V
O
Δt/Δv
Note1. The A and B sides of an unused data I/O pair must be held in the same state, i.e., both at
V
CCI
or both at GND.
Note2. V
CCA
must be less than or equal to V
CCB
and must not exceed 3.6 V.
Note3. V
CCI
is the supply voltage associated with the input port.
________________________________________________________________________
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UM3302H/UM3302Q
Electrical Characteristics (Note 1, 2)
Over recommended operating free-air temperature range (unless otherwise noted)
Parameter
Test Conditions
V
CCA
1.2V
1.4V to 3.6V
1.2V
1.4V to 3.6V
1.65V to 5.5V
1.65V to 5.5V
1.2V to 3.6V
0V
0V to 3.6V
1.2V to 3.6V
1.2V
V
I
=V
CCI
or GND
I
O
=0
1.4V to 3.6V
3.6V
0V
1.2V
V
I
=V
CCI
or GND
I
O
=0
1.4V to 3.6V
3.6V
0V
V
I
=V
CCI
or GND
I
O
=0
V
I
=V
CCI
or GND
I
O
=0, OE=GND
V
I
=V
CCI
or GND
I
O
=0, OE=GND
1.2V
1.4V to 3.6V
1.2V
1.4V to 3.6V
1.2V
1.4V to 3.6V
1.2V to 3.6V
1.2V to 3.6V
B Port
1.65V to 5.5V
0V to 5.5V
0V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
0V
5.5V
1.65V to 5.5V
1.65V to 5.5V
0V
5.5V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
1.65V to 5.5V
11
14
2.5
5
3.3
μA
5
3
6
pF
pF
0.05
μA
3
3.5
μA
8
3.4
5
μA
-2
2
0.06
3
μA
2
-2
±1
±1
±1
±1
V
CCB
-0.4
0.4
±2
±2
μA
±2
±2
μA
0.9
0.4
V
CCB
T
A
=25
Typ
1.1
V
CCA
-0.4
Max
-40
Min
to 85
Max
Unit
V
OHA
I
OH
=-20μA
V
V
OLA
V
OHB
V
OLB
I
I
I
off
B Port
I
OZ
A or B
Port
OE
A Port
I
OL
=20μA
I
OH
=-20μA
I
OL
=20μA
V
I
=V
CCI
or GND
V
I
or V
O
=0 to
3.6V
V
I
or V
O
=0 to
5.5V
OE=GND
V
V
V
μA
I
CCA
I
CCB
I
CCA
+I
CCB
I
CCZA
I
CCZB
C
i
C
iO
OE
A Port
Note1. V
CCI
is the supply voltage associated with the input port.
Note2. V
CCO
is the supply voltage associated with the output port.
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UM3302H/UM3302Q
Switching Characteristics
T
A
=+25°C, V
CCA
= 1.2V
Parameter
t
pd
t
en
t
dis
t
rA,
t
fA
t
rB,
t
fB
t
SK(O)
Max data
rate
To
(Output)
B
A
A
OE
B
A
OE
B
A port rise and fall
time
B port rise and fall
time
Channel-to-channel
From
(Input)
A
B
V
CCB
=1.8V V
CCB
=2.5V V
CCB
=3.3V
Typ
Typ
Typ
7
6
5.3
7.5
6.5
6
1
1
1
1
1
1
18
16
14
19
17
15
5
2.5
0.5
20
5
1.5
0.5
20
5
1.2
0.5
20
V
CCB
=5V
Typ
5.5
6
1
1
14
15
5
1
1.5
20
Unit
ns
μs
ns
ns
ns
ns
Mbps
Switching Characteristics
Over recommended operating free-air temperature range, V
CCA
=1.5V±0.1V (unless otherwise
noted)
From
(Input)
A
B
To
(Output)
V
CCB
=1.8V V
CCB
=2.5V V
CCB
=3.3V V
CCB
=5V
±0.15V
±0.2V
±0.3V
±0.5V
Min Max Min Max Min Max Min Max
2
15
1.2
11
1.1
10
1
10
1
15
0.9
12
0.5
12 0.3
13
1
1
1
1
1
1
1
1
6
30 5.5
28 5.5
25
5.5
23
5.5
30
5
25
5
20
5
20
1.5
0.9
5.0
4.5
0.5
40
40
1.5
0.6
5.0
3.5
0.5
40
1.5
0.5
5.0
3
0.5
40
1.5
0.4
5.0
2.5
0.5
Parameter
t
pd
t
en
t
dis
t
rA,
t
fA
t
rB,
t
fB
t
SK(O)
Max data
rate
Unit
ns
μs
ns
ns
ns
ns
Mbps
B
A
A
OE
B
A
OE
B
A port rise and fall
time
B port rise and fall
time
Channel-to-channel
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