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PI4ULS3V08
1.2V to 3.6V Universal Bidirectional Level Shifter
with Automatic Direction Control
Features
PI4ULS3V08 is designed for low voltage
operation: 1.2V to 3.6V
Universal bidirectional level shifting with
automatic direction control
Fast bus speeds up to 180 Mbps for push-pull
application
Drive Capability 12mA
Independent translation of each bit
Each supply rail is configurable over supply range
ESD Protection exceeds JESD22
2000V Human Body Model (A114-B)
200V Machine Model (A115-A)
Latch-up performance exceeds 100mA per JESD
78
Industrial operation at -40° to +85°
C
C
Package:
36-contact TQFN 5x6
Description
PI4ULS3V08, is a 8-bit (dual-octal) non-inverting
bus transceiver with two separate supply rails: A port
(VCCA) and B port (VCCB) are set to operate at 1.2V to
3.6V. This arrangement permits universal bidirectional
translation of differential signal levels over the voltage
ranges.
The PI4ULS3V08 is designed for asynchronous
communication between data buses. Data is transmitted
from the A bus to the B bus, or vice versa, without
direction control. All AX, and BX are tri-stated when
data is coming from both directions at the same time.
The output-enable (OE) input is used to disable outputs
so buses are isolated.
The control pins xOE, xSEL, TEST_EN and
OUT_SEL are supplied by VCCB.
To ensure the high impedance state during power-
Pin Configuration
up or power- down, the output-enable (OE) input should
be tied to VCC through a pull-up resistor: the minimum
value of the resistor is determined by the current-sinking
capability of the driver.
Applications
Voltage Translation
Bus Relay
Mobile Devices
Pin Description
Pin Name
x OE
xSEL
xAx
xBx
TEST_EN
OUT_SEL
GND
V
CCA
,V
CCB
TSTx
Description
3-State Output Enable Inputs (Active Low)
Outputs Loading Selection
Side A Inputs/Outputs
Side B Inputs/Outputs
Enable Test Mode
Output impedance select
Ground
Power
Internal test pins. For normal usage, please
tie to ground
TQFN-36L(Top View)
2013-07-0006
1
PT0487
07/12/13
PI4ULS3V08
1.2V to 3.6V Universal Bidirectional Level
Shifter with Automatic Direction Control
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Block Diagram
Figure 1. Block Diagram
Truth Table
Inputs
(1)
xOE 2SEL 1SEL
L
L
L
L
H
L
L
H
H
X
L
H
L
H
X
Outputs Loading(2)
CL ≤ 50pF
CL ≤ 30pF
CL ≤ 20pF
CL ≤ 10pF
-
Z (Isolation)
Bus B data to Bus
A, or Bus A data
to Bus B
Operation
Note:
1. H = HIGH Signal Level,
L = LOW Signal Level
X = Don’t Care or Irrelevant,
Z = High Impedance
2. Refer to Figure 2 for output Loading Chart
Test Mode / Output Impedance Select
TEST_EN
L
L
H
H
Out_SEL
L
H
L
H
Condition
Normal Operation
Low output impedance 300Ω
Normal Operation
High output impedance 2.2KΩ
Test_MODE A → B
Test_MODE B → A
Maximum Ratings
Storage Temperature ................................................................................... -65oC to +150oC
DC Supply Voltage VCCA............................................................................-0.5V to +4.6V
DC Supply Voltage VCCB............................................................................-0.5V to +4.6V
Enable Control Pin DC Input Voltage
....................................................
-0.5V to+4.6V
Voltage Range applied to any I/O pins in the high-impedance
or Power-Off state VIOZ(A)
.................................................................
-0.5V to+4.6V
Voltage Range applied to any I/O pins in the high-impedance
or Power-Off state VIOZ(B)
.................................................................
-0.5V to+4.6V
Voltage Range applied to any I/O pins in the high or Low
state VIO(A)
.................................................................................
-0.5V to V
CCA
+0.5V
Voltage Range applied to any I/O pins in the high or Low
state VIO(B)
..................................................................................
-0.5V to V
CCB
+0.5V
Input clamp Current (VI < 0)
..............................................................................-
50mA
Ourput clamp current (VO < 0)
..........................................................................-
50mA
Continuous output current
.................................................................................
±
20mA
Continuous current through VCCA, VCCB or GND Pin
..............................
±
100mA
2013-07-0006
2
Note:
1 The input negative voltage and output voltage
ratings may be exceeded if the input and output
current ratings are observed.
2 This value is limited to 3.6V maximum.
3 Stresses greater than those listed under
MAXIMUM RATINGS may cause permanent
damage to the device. This is a stress rating only
and functional operation of the device at these or
any other condi-tions above those indicated in the
operational sec-tions of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
reliability.
PT0487
07/12/13
PI4ULS3V08
1.2V to 3.6V Universal Bidirectional Level
Shifter with Automatic Direction Control
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Recommended Operating Conditions
(1)(2)(3)
Parameter
VCCA, VCCB
V
IH
Description
Supply Voltage
High-Level Input
I/O pins
V
CCI
-
1.2V to 1.95V
2.3V to 2.7V
2.7V to 3.6V
1.2V to 1.95V
V
IL
Low-Level Input
I/O pins
2.3V to 2.7V
2.7V to 3.6V
1.2V to 1.95V
V
IHB
High-Level Input
Voltage
Control Inputs
(OE)
2.3V to 2.7V
2.7V to 3.6V
1.2V to 1.95V
V
ILB
V
I
V
O
Low-Level Input
Voltage
Input Voltage
Output Voltage
Control Inputs
(OE)
I/O pins and Control
I/O pins and Control
2.3V to 2.7V
2.7V to 3.6V
-
-
V
CCO
= 1.2V
V
CCO
= 1.4V
I
OH
High-Level Output
I/O pins
V
CCO
= 1.65V
V
CCO
= 2.3V
V
CCO
= 3.0V
V
CCO
= 1.2V
I
OL
Low-Level Output
I/O pins
V
CCO
= 1.4V
V
CCO
= 1.65V
V
CCO
= 2.3V
V
CCO
= 3.0V
∆V/∆t
T
A
Input Transition rise or fall rate
Operating Free-Air Temperature
-
-
Min
1.2
0.65 x V
CCI
1.7
2
-
-
-
0.65 x V
CCB
1.7
2
-
-
-
0
0
-
-
-
-
-
-
-
-
-
-
-
-40
0.35 x V
CCI
0.7
0.8
-
-
-
0.35 x V
CCB
0.7
0.8
3.6
3.6
-3
-5
-8
-9
-12
3
5
8
9
12
10
85
V/ns
°
C
mA
V
Max
3.6
-
-
Units
Notes:
1. V
CCI
is the V
CC
associated with the data input port.
2. V
CCO
is the V
CC
associated with the data output port.
3. To ensure proper device operation, all unused device inputs must be held at V
CCI
or GND.
2013-07-0006
3
PT0487
07/12/13
PI4ULS3V08
1.2V to 3.6V Universal Bidirectional Level
Shifter with Automatic Direction Control
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Electrical Characteristics
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
Description
Test Conditions
V
CCA
/V
CCB
I
OH
= -100μA
1.2V to 3.6V
1.2V
I
OH
-4mA
1.4V
V
OH
High-Level Output Voltage
I
OH
= -7mA
1.65V
I
OH
= -9mA
I
OH
= -12mA
I
OL
= 100μA
I
OL
= 4mA
V
OL
Low-Level Output Voltage
I
OL
= 7mA
I
OL
= 9mA
I
OL
= 12mA
V
I
= V
CCI
or GND,
I
O
= 0
V
I
= V
CCB
or GND
V
O
= V
CCO
or GND
V
I
= V
CCB
or GND
V
I
= V
CCA/B
or GND
2.3V
3.0V
1.2V to 3.6V
1.2V
1.4V
1.65V
2.3V
3.0V
1.2V to 3.6V
1.2V to 3.6V
1.2V to 3.6V
-
-
Min
V
CCO
- 0.1V
-
1
1.2
1.8
2.4
-
-
-
-
-
-
-
-
-
-
-
Typ
(1)
-
0.8
-
-
-
-
-
0.1
-
-
-
-
-
-
-
3
5
Max
-
-
-
-
-
-
0.2
-
0.4
0.4
0.4
0.4
10
±
5
±
10
-
-
pF
μA
Units
V
I
CC
I
I
I
OZ(2)
C
IN
C
IO
Quiescent Supply Current
Control Inputs (OE and SEL)
3-State Output Current
Control Input Capacitance
I/O Capacitance
Notes:
1. All typical values are at T
A
= 25°
C.
2. For I/O ports, the parameter I
OZ
includes the input leakage current.
3. Parameters are specified under test mode conditions.
Timing Characteristics
(V
CCA
= 1.5V±
0.1V, Over recommended free-air temperature range, unless otherwise noted.)
V
CCB
= 1.5V V
CCB
= 1.8V V
CCB
= 2.5V
V
CCB
= 1.2V
From
To
±
0.1V
±
0.15V
±
0.2V
Parameter
(Input)
(Output)
Typ
Min Max Min Max Min Max
t
PD
tsk(a)
(1)
V
CCB
= 3.3V
±
0.3V
Min
1.0
1.0
-
-
60
40
Max
5.0
5.5
0.3
0.25
-
MHz
-
ns
Units
A
B
-
-
B
A
B
A
8
6
-
-
1.0
1.0
-
-
30
30
7.0
7.0
0.3
0.25
-
-
1.0
1.0
-
-
40
35
6.5
6.5
0.3
0.25
-
-
1.0
1.0
-
-
50
40
6.0
6.0
0.3
0.25
-
-
tsk(b)
(1)
fmax
10pF load
A
B
25
30
2013-07-0006
4
PT0487
07/12/13
PI4ULS3V08
1.2V to 3.6V Universal Bidirectional Level
Shifter with Automatic Direction Control
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(V
CCA
= 1.8V±
0.15V, Over recommended free-air temperature range, unless otherwise noted.)
V
CCB
= 1.5V V
CCB
= 1.8V V
CCB
= 2.5V
V
CCB
= 1.2V
From
To
±
0.1V
±
0.15V
±
0.2V
Parameter
(Input)
(Output)
Typ
Min Max Min Max Min Max
t
PD
tsk(a)
(1)
tsk(b)
(1)
B
A
A
B
-
-
A
B
B
A
8
6
-
-
25
30
1.0
1.0
-
-
35
40
6.0
6.0
0.25
0.2
-
-
0.5
0.5
-
-
45
45
5.5
5.5
0.25
0.2
-
-
0.5
0.5
-
-
55
50
5.0
5.0
0.25
0.2
-
-
V
CCB
= 3.3V
±
0.3V
Min
0.5
0.5
-
-
65
55
Max
4.5
4.5
0.25
0.2
-
MHz
-
ns
Units
fmax
10pF load
(V
CCA
= 2.5V±
0.2V, Over recommended free-air temperature range, unless otherwise noted.)
V
CCB
= 1.5V V
CCB
= 1.8V V
CCB
= 2.5V
V
CCB
= 1.2V
From
To
±
0.1V
±
0.15V
±
0.2V
Parameter
(Input)
(Output)
Typ
Min Max Min Max Min Max
t
PD
tsk(a)
(1)
V
CCB
= 3.3V
±
0.3V
Min
0.5
0.5
-
-
80
80
Max
4.0
4.0
0.25
0.2
-
MHz
-
ns
Units
A
B
-
-
B
A
B
A
8
6
-
-
1.0
1.0
-
-
40
50
5.5
5.5
0.25
0.2
-
-
0.5
0.5
-
-
50
55
5.0
5.0
0.25
0.2
-
-
0.5
0.5
-
-
75
75
4.5
4.5
0.25
0.2
-
-
tsk(b)
(1)
fmax
10pF load
A
B
30
40
(V
CCA
= 3.3V±
0.3V, Over recommended free-air temperature range, unless otherwise noted.)
V
CCB
= 1.5V V
CCB
= 1.8V V
CCB
= 2.5V
V
CCB
= 1.2V
From
To
±
0.1V
±
0.15V
±
0.2V
Parameter
(Input)
(Output)
Typ
Min Max Min Max Min Max
t
PD
tsk(a)
(1)
V
CCB
= 3.3V
±
0.3V
Min
0.5
0.5
-
-
90
90
Max
3.5
3.5
0.25
0.2
-
MHz
-
ns
Units
A
B
-
-
B
A
B
A
7
6
-
-
1.0
1.0
-
-
40
60
5.0
5.0
0.25
0.2
-
-
0.5
0.05
-
-
55
65
4.5
4.5
0.25
0.2
-
-
0.5
0.5
-
-
80
80
4.0
4.0
0.25
0.2
-
-
tsk(b)
(1)
fmax
10pF load
A
B
30
40
Note:
1. This is the skew between any two outputs of the same package, and switching in the same direction. For tsk(a), Output 1
and Output 2 are any two outputs. For tsk(b), Output 1 and Output 2 are in the same bank. These parameters are warranted
but not production tested.
2013-07-0006
5
PT0487
07/12/13
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