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PI4ULS3V08M 1
PS8774H 02/23/07
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 160 Mbps
Drive Capability 12mA
Independent translation of each bit
Each supply rail is con gurable 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°C to +85°C
Packaging (Pb-free & Green): 32-contact TQFN (ZL32)
Applications
Voltage
Translation
Bus
Relay
Mobile
Devices
PI4ULS3V08M
Description
PI4ULS3V08M, is a 8-bit (octal) non-inverting bus
transceiver with two separate supply rails: A port (V
CCA
)
and B port (V
CCB
) 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 A
X
, and B
X
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
V
CCB
.
To ensure the high impedance state during power-up or power-
down, the output-enable (OEx) input should be tied to V
CC
through
a pullup resistor: the minimum value of the resistor is determined
by the current-sinking capability of the driver.
Block Diagram
1.2V to 3.6V Universal Bi-directional Level Shifter with Automatic
Direction Control & Advanced Package Solution
To Three Other Channels
B
1
A
1
OE
1
Testing and
Loading
Logic
OUT_SEL
TEST_EN
To Three Other Channels
B
5
A
5
OE
2
Testing and
Loading
Logic
OUT_SEL
TEST_EN
Pin Con guration
B
1
B
2
V
CCB
B
3
B
4
GND
B
5
B
6
V
CCB
B
7
B
8
A
1
A
2
V
CCA
A
3
A
4
GND
A
5
A
6
V
CCA
A
7
A
8
1
2
3
4
5
6
7
8
9
10
11
27
26
25
24
23
22
21
20
19
18
17
GND
V
CCB
OE
2
V
CCA
GND
12
13
14
15
16
32
31
30
29
28
GND
TEST_EN
OUT_SEL
OE
1
GND
07-0051 2
PS8774H 02/23/07
PI4ULS3V08M
1.2V to 3.6V, Universal Bi-directional Level Shifter with
Automatic Direction Control & Advanced Package Solution
Supply voltage range:
V
CCA
.................... 0.5V to 4.6V

V
CCB
.................... 0.5V to 4.6V
Input voltage range, V
I(1)
Control Inputs ...... 0.5V to 4.6V
Voltage Range applied to any I/O pins in the high-impedance
or Power-Off state, V
IO (1)
:


A Port
.......................
0.5V to 4.6V

B Port ................... 0.5V to 4.6V
Voltage Range applied to any I/O pins in the High or Low
state V
IO (1, 2)
:


A Port
.........
0.5V to V
CCA
+0.5V

B Port ....... 0.5V to V
CCB
+0.5V
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 RAT INGS may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those in di cat ed in the operational sec tions of this spec i ca tion is not
im plied. Exposure to absolute maximum rating conditions for ex tend ed periods may affect reliability.
Maximum Ratings
(3)

(Absolute maximum ratings over operating free-air temperature range, unless otherwise noted)
Input clamp current, I
IK
(V
I
<0) ................................... 50mA
Output clamp current, I
OK
(V
O
<0) .............................. 50mA
Continuous output current, I
O
....................................... ±20mA
Continuous current through V
CCA,
V
CCB
or GND ..... ±100mA
Storage temperature range, T
STG
.................... 65°C to 150°C
Pin Description
Pin Name
Description
OEx
3-State Output Enable Inputs (Active LOW)
A
X
Side A Inputs/Outputs
B
X
Side B Inputs/Outputs
TEST_EN
Enable Test Mode
OUT_SEL
Output impedance select
GND
Ground
V
CCA,
V
CCB
Power
Truth Table
(1)

Input
Outputs Loading
Operation
OEx
L
C
L
50pF
Bus B data to bus A, or
Bus A data to Bus B
H
Z (Isolation)
Note:
1. H = HIGH Signal Level

L = LOW Signal Level

Z = High Impedance
Test Mode / Output Impedance Select
TEST_EN
Out_SEL
Condition
L
L Normal
Operation
Low output impedance 300
L
H
Normal Operation
High output impedance 2.2K
H
L
Test_MODE A B
H
H
Test_MODE B A
07-0051 3
PS8774H 02/23/07
PI4ULS3V08M
1.2V to 3.6V, Universal Bi-directional Level Shifter with
Automatic Direction Control & Advanced Package Solution
Recommended Operating Conditions
(1, 2, 3)
Parameter
Description
V
CCI
Min.
Max.
Units
V
CCA
, V
CCB
Supply Voltage
1.2
3.6
V
V
IH
High-Level Input
Voltage
I/O pins
1.2V to 1.95V
0.65 x V
CCI
2.3V to 2.7V
1.7
2.7V to 3.6V
2
V
IL
Low-Level Input
Voltage
I/O pins
1.2V to 1.95V
0.35 x V
CCI
2.3V to 2.7V
0.7
2.7V to 3.6V
0.8
V
IHB
High-Level Input
Voltage
Control Inputs
(OE)
1.2V to 1.95V
0.65 x V
CCB
2.3V to 2.7V
1.7
2.7V to 3.6V
2
V
ILB
Low-Level Input
Voltage
Control Inputs
(OE)
1.4V to 1.95V
0.35 x V
CCB
2.3V to 2.7V
0.7
2.7V to 3.6V
0.8
V
I
Input Voltage
I/O pins and Control
Inputs
0
3.6
V
O
Output Voltage
I/O pins and Control
Inputs
0
3.6
I
OH
High-Level Output
Current
I/O pins
V
CCO
= 1.2V
-3
mA
V
CCO
= 1.4V
-5
V
CCO
= 1.65V
-8
V
CCO
= 2.3V
-9
V
CCO
= 3.0V
-12
I
OL
Low-Level Output
Current
I/O pins
V
CCO
= 1.2V
3
V
CCO
= 1.4V
5
V
CCO
= 1.65V
8
V
CCO
= 2.3V
9
V
CCO
= 3.0V
12
V/t
Input Transition rise or fall rate
10
V/ns
T
A
Operating Free-Air Temperature
-40
85
°C
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.
07-0051 4
PS8774H 02/23/07
PI4ULS3V08M
1.2V to 3.6V, Universal Bi-directional Level Shifter with
Automatic Direction Control & Advanced Package Solution
Electrical Characteristics for
(Over recommended free-air temperature range, unless otherwise noted.)
(3)
Parameter
Description
Test Conditions
V
CCA/
V
CCB
Min.
Typ.
(1)
Max.
Units
V
OH
High-Level Output Voltage
I
OH
= -100A
1.2V to 3.6V
V
CCO
- 0.1V
V
I
OH
= -2mA
1.2V
0.8
I
OH
= -4mA
1.4V
1
I
OH
= -7mA
1.65V
1.2
I
OH
= -9mA
2.3V
1.8
I
OH
= -12mA
3.0V
2.4
V
OL
Low-Level Output Voltage
I
OL
= 100A
1.2V to 3.6V
0.2
I
OL
= 2mA
1.2V
0.1
I
OL
= 4mA
1.4V
0.4
I
OL
= 7mA
1.65V
0.4
I
OL
= 9mA
2.3V
0.4
I
OL
= 12mA
3.0V
0.4
I
CC
Quiescent Supply Current
V
I
= V
CCI
or GND,
I
O
= 0
1.2V to 3.6V
10
A
I
I
Control Inputs (OE and SEL) V
I
= V
CCB
or GND
1.2V to 3.6V
±5
I
OZ(2)
3-State Output Current
V
O
= V
CCO
or GND
1.2V to 3.6V
±10
C
IN
Control Input Capacitance
V
I
= V
CCB
or GND
3
pF
C
IO
I/O Capacitance
V
O
= V
CCA/B
or GND
5
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 speci ed under test mode conditions.
07-0051 5
PS8774H 02/23/07
PI4ULS3V08M
1.2V to 3.6V, Universal Bi-directional Level Shifter with
Automatic Direction Control & Advanced Package Solution
Timing Characteristics for V
CCA
= 1.8V ±0.15V
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
From
(Input)
To
(Output)
V
CCB
= 1.2V V
CCB
= 1.5V
±0.1V
V
CCB
= 1.8V
±0.15V
V
CCB
= 2.5V
±0.2V
V
CCB
= 3.3V
±0.3V
Units
Typ
Min. Max. Min. Max. Min. Max. Min.
Max.
t
PD
A
B
8
1.0
6.0
0.5
5.5
0.5
5.0
0.5
4.5
ns
B
A
6
1.0
6.0
0.5
5.5
0.5
5.0
0.5
4.5
t
SK(a)(1)
0.25
0.25
0.25
0.25
t
SK(b)(1)
0.2
0.2
0.2
0.2
f
MAX
10pF load
B
A
13
15
20
25
30
MHz
A
B
16
20
20
22
24
Timing Characteristics for V
CCA
= 2.5V ±0.2V
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
From
(Input)
To
(Output)
V
CCB
= 1.2V V
CCB
= 1.5V
±0.1V
V
CCB
= 1.8V
±0.15V
V
CCB
= 2.5V
±0.2V
V
CCB
= 3.3V
±0.3V
Units
Typ
Min. Max. Min. Max. Min. Max. Min.
Max.
t
PD
A
B
8
1.0
5.5
0.5
5.0
0.5
4.5
0.5
4.0
ns
B
A
6
1.0
5.5
0.5
5.0
0.5
4.5
0.5
4.0
t
SK(a)(1)
0.25
0.25
0.25
0.25
t
SK(b)(1)
0.2
0.2
0.2
0.2
f
max
10pF load
B
A
13
15
22
35
40
MHz
A
B
18
23
30
35
35
Note:
1. This is the skew between any two outputs of the same package, and switching in the same direction. For t
SK(a)
, Output 1 and Output 2 are any
two outputs. For t
SK(b)
, Output 1 and Output 2 are in the same bank. These parameters are warranted but not production tested.
Timing Characteristics for V
CCA
= 1.5V ±0.1V
(Over recommended free-air temperat