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PI4ULS3V08M
1.2V to 3.6V Universal Bidirectional Level Shifter
with Automatic Direction Control
Features
PI4ULS3V08M is designed for low voltage
operation: 1.2V to 3.6V
Universal bidirectional level shifting with
automatic direction control
Fast bus speeds up to 90 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:
32-contact TQFN 3x6
Description
PI4ULS3V08M, is a 8-bit
(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 PI4ULS3V08M 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 OEx, 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 (OEx) 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
OEx
Ax
Bx
TEST_EN
OUT_SEL
GND
V
CCA
,V
CCB
Description
3-State Output Enable Inputs (Active Low)
Side A Inputs/Outputs
Side B Inputs/Outputs
Enable Test Mode
Output impedance select
Ground
Power
TQFN-32L(Top View)
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PI4ULS3V08M
1.2V to 3.6V Universal Bidirectional Level
Shifter with Automatic Direction Control
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Block Diagram
Input
OEx
L
H
Truth Table
Outputs Loading
C
L
≤ 50pF
Operation
Bus B data to Bus A, or
Bus A data to Bus B
Z (Isolation)
Note:
1. H = HIGH Signal Level, L = LOW Signal Level
Z = High Impedance
Test Mode / Output Impedance Select
TEST_EN
L
L
H
H
Figure 1: Block Diagram
Out_SEL
L
H
L
H
Conditions
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
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.
2013-07-0003
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PI4ULS3V08M
1.2V to 3.6V Universal Bidirectional Level
Shifter with Automatic Direction Control
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Recommended Operating Conditions
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.
2013-07-0003
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PI4ULS3V08M
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
I
OH
= -2mA
1.2V
I
OH
-4mA
1.4V
V
OH
High-Level Output Voltage
I
OH
= -7mA
1.65V
I
OH
= -9mA
2.3V
I
OH
= -12mA
3.0V
I
OL
= 100μA
1.2V to 3.6V
I
OL
= 2mA
1.2V
I
OL
= 4mA
1.4V
V
OL
Low-Level Output Voltage
I
OL
= 7mA
1.65V
I
OL
= 9mA
2.3V
I
OL
= 12mA
3.0V
V
I
= V
CCI
or GND,
I
CC
Quiescent Supply Current
1.2V to 3.6V
I
O
= 0
I
I
Control Inputs (OE and SEL)
1.2V to 3.6V
V
I
= V
CCB
or GND
(2)
I
OZ
3-State Output Current
1.2V to 3.6V
V
O
= V
CCO
or GND
C
IN
C
IO
Control Input Capacitance
I/O Capacitance
V
I
= V
CCB
or GND
V
I
= V
CCA/B
or GND
-
-
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
-
-
μA
Units
V
pF
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)
tsk(b)
(1)
B
A
A
B
-
-
A
B
B
A
8
6
-
-
12
15
1.0
1.0
-
-
15
15
7.0
7.0
0.3
0.25
-
-
1.0
1.0
-
-
20
15
6.5
6.5
0.3
0.25
-
-
1.0
1.0
-
-
22
16
6.0
6.0
0.3
0.25
-
-
V
CCB
= 3.3V
±
0.3V
Min
1.0
1.0
-
-
25
17
Max
5.0
5.5
0.3
0.25
-
MHz
-
ns
Units
fmax
10pF load
2013-07-0003
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PI4ULS3V08M
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
-
-
13
16
1.0
1.0
-
-
15
20
6.0
6.0
0.25
0.2
-
-
0.5
0.5
-
-
20
20
5.5
5.5
0.25
0.2
-
-
0.5
0.5
-
-
25
22
5.0
5.0
0.25
0.2
-
-
V
CCB
= 3.3V
±
0.3V
Min
0.5
0.5
-
-
30
24
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
-
-
40
35
Max
4.0
4.0
0.25
0.2
-
MHz
-
ns
Units
A
B
-
-
B
A
B
A
8
6
-
-
1.0
1.0
-
-
15
23
5.5
5.5
0.25
0.2
-
-
0.5
0.5
-
-
22
30
5.0
5.0
0.25
0.2
-
-
0.5
0.5
-
-
35
35
4.5
4.5
0.25
0.2
-
-
tsk(b)
(1)
fmax
10pF load
A
B
13
18
(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)
tsk(b)
(1)
B
A
A
B
-
-
A
B
B
A
-
-
-
-
13
15
1.0
1.0
-
-
15
25
6.0
5.5
0.25
0.2
-
-
0.5
0.05
-
-
24
30
5.0
5.0
0.25
0.2
-
-
0.5
0.5
-
-
35
40
4.5
4.5
0.25
0.2
-
-
V
CCB
= 3.3V
±
0.3V
Min
0.5
0.5
-
-
45
45
Max
4.0
4.0
0.25
0.2
-
MHz
-
ns
Units
fmax
10pF load
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.
2013-07-0003
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