PI4ULS3V16
11-0008
1.2V to 3.6V Universal Bi-directional
Level Shifter with Automatic Direction Control
Features
• Designed for low voltage operation: 1.2V to 3.6V
• Universal bidirectional level shifting without direction
control
• Fast bus speeds up to 180 Mbps
• Drive Capability 12mA
• Independent transition of each bit
• Each supply rail is confi 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):
– 56-pin plastic 240-mil TSSOP (A56)
– 56-contact plastic 197-mil TQFN (ZF56)
Block Diagram
Description
Pericom Semiconductor’s PI4ULS3V16 is a 16-bit (dual-octal)
non-inverting bus transceiver with two separate supply rails.
A port (V
) and B port (V
CCA
) are set to operate at 1.2V to
CCB
3.6V. This arrangement permits universal bidirectional translation
of differential signal levels over the voltage ranges.
PI4ULS3V16 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, xSEL, xOE, TEST_EN and OUT_SEL are supplied
by V
CCB
.
To ensure the high-impedance state during power-up or powerdown, the output-enable (OE) input should be tied to VCC through
a pullup resistor.
Applications
• Voltage Translation
• Bus Relay
SEL
1
SEL
2
OUT_SEL
TEST_EN
1A1
SEL
1
SEL
2
OUT_SEL
TEST_EN
2A1
Testing and
Loading
Logic
To Seven Other Channels
Testing and
Loading
Logic
To Seven Other Channels
TST
OE
1
1B1
TST
OE
2
2B1
1
PS8775F 07/21/08
PI4ULS3V16
11-0008
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
Maximum Ratings
(Absolute maximum ratings over operating free-air temperature range, unless otherwise noted)
Supply voltage range: V
V
Input voltage range, V
(1)
Control Inputs ...... –0.5V to 4.6V
I
Voltage Range applied to any I/O pins in the high-impedance
or Power-Off state, V
IO
(1)
:
B Port ................... –0.5V to 4.6V
Voltage Range applied to any I/O pins in the High or Low
state V
(1, 2)
: A Port
IO
B Port ....... –0.5V to V
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. The package thermal impedance is calculated in accordance with JESD 51.
4. 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 fi ca tion is not
im plied. Exposure to absolute maximum rating conditions for ex tend ed periods may affect reliability.
.................... –0.5V to 4.6V
CCA
.................... –0.5V to 4.6V
CCB
A Port
.......................
–0.5V to V
.........
–0.5V to 4.6V
CCA
CCB
+0.5V
+0.5V
Input clamp current, I
(VI <0) ................................... –50mA
IK
Output clamp current, IOK (VO <0) .............................. –50mA
Continuous output current, IO ....................................... ±20mA
Continuous current through V
Package thermal impedance, 0
A package ............................. 82°C/W
CCA, VCCB
(3)
JA
or GND ..... ±100mA
:
ZF package ........................... 33°C/W
Storage temperature range, T
.................... –65°C to 150°C
STG
Pin Confi guration - TSSOP
TEST_EN
SEL
1
V
CCB
1
1
GND
1B3
1
V
CCB
1
1
GND
1B7
1
2
2
GND
2B3
2
V
CCB
2
2
GND
2B7
2
V
CCB
SEL
2
TST
1
2
3
4
B
1
5
B
2
6
7
8
B
4
9
B
10
5
B
11
6
12
13
B
14
8
B
15
1
B
16
2
17
18
B
19
4
20
B
21
5
B
22
6
23
24
B
25
8
26
27
28
B
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
OUT_SEL
OE
1
V
CCA
A
1
1
A
2
1
GND
1A3
A
4
1
V
CCA
A
5
1
A
6
1
GND
1A7
A
8
1
A
1
2
A
2
2
GND
2A3
A
4
2
V
CCA
A
5
2
A
6
2
GND
2A7
A
8
2
V
CCA
OE
2
TST
A
Pin Confi guration - TQFN
1
CCB
B
SEL
1
V
1
56555453525150
1B2
GND
1B3
1
V
CCB
1
1
GND
1B7
1
2
2
GND
2B3
2
V
CCB
2
2
GND
2B7
B
B
B
B
B
B
B
B
B
1
2
3
4
4
5
6
5
7
6
8
9
10
8
11
1
12
2
13
14
15
4
16
17
5
18
6
19
20
21222324252627
8
B
2
CCB
SEL
2
V
OE
OUT_SEL
1
TEST_EN
B
OE
2
TSTA
TST
CCA
V
CCA
V
1
A
1
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
8
A
2
A
1
2
GND
1A3
A
1
4
V
CCA
A
1
5
A
1
6
GND
1A7
A
1
8
A
2
1
A
2
2
GND
2A3
A
2
4
V
CCA
A
2
5
A
2
6
GND
2A7
2
PS8775F 07/21/08
PI4ULS3V16
11-0008
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
Pin Description
Pin Name Description
OE 3-State Output Enable Inputs (Active LOW)
X
SEL Outputs Loading Selection
X
XAX
XBX
Side A Inputs/Outputs
Side B Inputs/Outputs
TEST_EN Enable Test Mode
OUT_SEL Output impedance Selection
GND Ground
V
CCA, VCCB
TST
X
Power
Internal test pins. For normal usage, please tie
to ground.
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
Truth T able
Inputs
OE
x
(1)
SEL1SEL
2
Outputs Loading
(2)
Operation
LLL CL 50pF
LLH C
LH L C
LHH C
30pF
L
20pF
L
10pF
L
Bus B data to
Bus A, or Bus A
data to Bus B
H X X Z (Isolation)
Notes:
1. H = HIGH Signal Level
L = LOW Signal Level
X = Don't Care or Irrelevant
Z = High Impedance
2. Refer to Figure 1 for Output Loading Chart
3
PS8775F 07/21/08
PI4ULS3V16
11-0008
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
I/O pins
(1, 2, 3)
CCI
Min. Max. Units
1.2V to 1.95V 0.65 x V
2.3V to 2.7V 1.7
CCI
Recommended Operating Conditions
Parameter Description V
V
CCA
, V
V
IH
Supply Voltage 1.2 3.6
CCB
High-Level Input
Voltage
2.7V to 3.6V 2
V
IL
Low-Level Input
Voltage
I/O pins
2.3V to 2.7V 0.7
1.2V to 1.95V 0.35 x V
CCI
2.7V to 3.6V 0.8
V
IHB
High-Level Input
Voltage
Control Inputs
(OE and SEL)
2.3V to 2.7V 1.7
1.2V to 1.95V 0.65 x V
CCB
2.7V to 3.6V 2
V
ILB
Low-Level Input
Voltage
Control Inputs
(OE and SEL)
2.3V to 2.7V 0.7
1.2V to 1.95V 0.35 x V
CCB
2.7V to 3.6V 0.8
I/O pins and Control
Inputs
I/O pins and Control
Inputs
I/O pins
I/O pins
0 3.6
0 3.6
V
= 1.2V -3
CCO
V
= 1.4V -5
CC
V
= 1.65V -8
CCO
V
= 2.3V -9
CCO
V
= 3.0V -12
CCO
V
= 1.2V -3
CC
= 1.4V 5
V
CCO
V
= 1.65V 8
CCO
V
= 2.3V 9
CCO
V
= 3.0V 12
CCO
I
V
I
V
OH
OL
I
O
Input Voltage
Output Voltage
High-Level Output
Current
Low-Level Output
Current
V/t Input Transition rise or fall rate 10 V/ns
T
A
Notes:
1. V
2. V
3. To ensure proper device operation, all unused device inputs must be held at V
is the VCC associated with the data input port.
CCI
is the VCC associated with the date output port.
CO
Operating Free-Air Temperature -40 85 °C
or GND.
CCI
V
mA
4
PS8775F 07/21/08
PI4ULS3V16
11-0008
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
Electrical Characteristics for (Over recommended free-air temperature range, unless otherwise noted.)
Parameter Description Test Conditions V
= -100A 1.2V to 3.6V V
I
OH
I
= -2mA 1.2V 0.8
OH
I
= -4mA 1.4V 1
V
OH
V
OL
I
CC
I
I
(2)
I
OZ
C
IN
C
IO
High-Level Output Voltage
Low-Level Output Voltage
Quiescent Supply Current
Control Inputs (OE and SEL) VI = V
3-State Output Current VO = V
Control Input Capacitance VI = V
I/O Capacitance VO = V
OH
I
= -7mA 1.65V 1.2
OH
I
= -9mA 2.3V 1.8
OH
I
= -12mA 3.0V 2.4
OH
= 100A 1.2V to 3.6V 0.2
I
OL
I
= 2mA 1.2V 0.1
OL
I
= 4mA 1.4V 0.4
OL
I
= 7mA 1.65V 0.4
OL
I
= 9mA 2.3V 0.4
OL
I
= 12mA 3.0V 0.4
OL
VI = V
IO = 0
or GND,
CCI
or GND 1.2V to 3.6V ±5
CCB
or GND 1.2V to 3.6V ±10
CCO
or GND 3
CCB
or GND 5
CCA/B
1.2V to 3.6V 10
CCA/VCCB
Min. Typ.
- 0.1V
CCO
(3)
(1)
Max. Units
V
A
pF
Notes:
1. All typical values are at TA = 25°C.
2. For I/O ports, the parameter IOZ includes the input leakage current.
3. Parameters are specifi ed under test mode conditions.
5
PS8775F 07/21/08
PI4ULS3V16
11-0008
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
Timing Characteristics for V
= 1.5V ±0.1V
CCA
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
t
PD
(1)
t
SK(a)
(1)
t
SK(b)
f
max
10pF load
From
(Input)
(Output)
A B 8 1.0 7.0 1.0 6.5 1.0 6.0 1.0 5.0
B A 6 1.0 7.0 1.0 6.5 1.0 6.0 1.0 5.5
B A 25 30 40 50 60
A B 30 30 35 40 40
Timing Characteristics for V
To
= 1.8V ±0.15V
CCA
= 1.2V V
CCB
Typ Min. Max. Min. Max. Min. Max. Min. Max.
= 1.5V
CCB
±0.1V
0.3 0.3 0.3 0.3
0.25 0.25 0.25 0.25
V
(Over recommended free-air temperature range, unless otherwise noted.)
V
Parameter
t
PD
(1)
t
SK(a)
(1)
t
SK(b)
f
MAX
10pF load
= 1.2V V
From
(Input)
To
(Output)
CCB
Typ Min. Max. Min. Max. Min. Max. Min. Max.
A B 8 1.0 6.0 0.5 5.5 0.5 5.0 0.5 4.5
B A 6 1.0 6.0 0.5 5.5 0.5 5.0 0.5 4.5
B A 25 35 45 55 65
A B 30 40 45 50 55
= 1.5V
CCB
±0.1V
0.25 0.25 0.25 0.25
0.2 0.2 0.2 0.2
V
V
CCB
CCB
= 1.8V
±0.15V
= 1.8V
±0.15V
V
V
CCB
±0.2V
CCB
±0.2V
= 2.5V
= 2.5V
V
V
CCB
±0.3V
CCB
±0.3V
= 3.3V
= 3.3V
Units
ns
MHz
Units
ns
MHz
Timing Characteristics for V
= 2.5V ±0.2V
CCA
(Over recommended free-air temperature range, unless otherwise noted.)
V
= 1.5V
V
= 1.2V
Parameter
t
PD
(1)
t
SK(a)
(1)
t
SK(b)
f
max
10pF load
Note:
1. This is the skew between any two outputs of the same package, and switching in the same direction. For t
two outputs. For t
From
(Input)
A B 8 1.0 5.5 0.5 5.0 0.5 4.5 0.5 4.0
B A 6 1.0 5.5 0.5 5.0 0.5 4.5 0.5 4.0
B A 30 40 50 75 80
A B 40 50 55 75 80
, Output 1 and Output 2 are in the same bank. These parameters are warranted but not production tested.
SK(b)
To
(Output)
CCB
Typ Min. Max. Min. Max. Min. Max. Min. Max.
CCB
±0.1V
6
V
= 1.8V
CCB
±0.15V
V
CCB
±0.2V
0.25 0.25 0.25 0.25
0.2 0.2 0.2 0.2
= 2.5V
V
CCB
= 3.3V
±0.3V
, Output 1 and Output 2 are any
SK(a)
PS8775F 07/21/08
Units
ns
MHz
PI4ULS3V16
11-0008
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
Timing Characteristics for V
= 3.3V ±0.3V
CCA
(Over recommended free-air temperature range, unless otherwise noted.)
V
= 1.5V
V
= 1.2V
Parameter
t
PD
(1)
t
SK(a)
(1)
t
SK(b)
f
max
10pF load
Note:
1. This is the skew between any two outputs of the same package, and switching in the same direction. For t
two outputs. For t
From
(Input)
A B 7 1.0 5.0 0.5 4.5 0.5 4.0 0.5 3.5
B A 6 1.0 5.0 0.05 4.5 0.5 4.0 0.5 3.5
B A 30 40 55 80 90 MHz
A B 40 60 65 80 90
, Output 1 and Output 2 are in the same bank. These parameters are warranted but not production tested.
SK(b)
To
(Output)
CCB
Typ Min. Max. Min. Max. Min. Max. Min. Max.
CCB
±0.1V
V
= 1.8V
CCB
±0.15V
V
CCB
±0.2V
0.25 0.25 0.25 0.25
0.2 0.2 0.2 0.2
= 2.5V
V
CCB
= 3.3V
±0.3V
, Output 1 and Output 2 are any
SK(a)
Units
ns
Operating Characteristics (V
CCA
and V
= 2.5V, TA = 25°C)
CCB
Parameter Test Conditions Typ. Units
Power Dissipation Capacitance A to B
(1)
Cpd
(V
)
CCA
Power Dissipation Capacitance B to A
Power Dissipation Capacitance A to B
(1)
Cpd
(V
)
CCB
Power Dissipation Capacitance B to A
Notes:
1. This parameter is specifi ed under test mode conditions.
Outputs Enabled
Outputs Disabled 2
Outputs Enabled 30
CL = 0
f = 10 MHz
Outputs Disabled 10
Outputs Enabled
Outputs Disabled 10
Outputs Enabled 15
CL = 0
f = 10 MHz
Outputs Disabled 2
15
30
pF
pF
7
PS8775F 07/21/08
Parameter Measurement Information
11-0008
PI4ULS3V16
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
S1
Open
/ t
pd
sk
/2
CCI
t
PHL
/2
V
V
CCA/VCCB
1.2V ~ 1.6V
1.8V ±0.15V
2.5V ±0.2V
3.3V ±0.3V
C
L
10pF
20pF
30pF
50pF
Input
Output
Output
t
PLH
C
L
Test Circuit for t
V
/2 V
CCI
V
CCO
Voltage Waveforms
Propagation Delay Times
Figure 1. Load Circuit and Voltage Waveforms
Notes:
• CL includes probe and jig capacitance.
• Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
• All input pulses are supplied by generators having the following characteristics: PRR 10Mz, ZO = 50, tr 2.5ns, tf 2.5ns.
• The outputs are measured one at a time with one transition per measurement.
• t
• t
• t
• V
• V
and t
PLZ
and t
PZL
and t
PLH
defi nes the input port (V
CCI
CCO
are the same as t
PHZ
are the same as tEN.
PZH
are the same as tPD.
PHL
defi nes the output port (V
DIS.
CCA
CCA
or V
or V
CCB
CCB
).
).
CCO
V
CCI
0V
V
OH
/2
V
OL
8
PS8775F 07/21/08
PI4ULS3V16
11-0008
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
Notes:
1. Controlling dimensions in millimeters.
2. Ref: JEDEC MO-153F/EE
3. Package Outline Exclusive of Mold Flash and Metal Burr
DESCRIPTION: 56-pin, 240-mil wide TSSOP
PACKAGE CODE: A56
DOCUMENT CONTROL #: PD-1502
DATE: 09/11/06
REVISION: M
9
PS8775F 07/21/08
PI4ULS3V16
11-0008
1.2V to 3.6V, Universal Bi-directional
Level Shifter with Automatic Direction Control
DESCRIPTION: 56-contact, Thin Fine Pitch Quad Flat No-lead (TQFN)
PACKAGE CODE: ZF56
DOCUMENT CONTROL #: PD-2024
Ordering Information
Ordering Code Packaging Code Package Description
PI4ULS3V16AE A Pb-free & Green, 56-pin, 240-mil wide plastic TSSOP
PI4ULS3V16ZFE ZF Pb-free & Green, 56-contact, 197-mil wide plastic TQFN
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Lead-free and Green
• Adding X suffi x = Tape/Reel
DATE: 05/15/08
REVISION: C
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
10
PS8775F 07/21/08
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