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Pericom Semiconductor

PI4ULS3V16 Datasheet Preview

PI4ULS3V16 Datasheet

1.2V to 3.6V Universal Bi-directional Level Shifter

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PI4ULS3V16
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1.2V to 3.6V Universal Bidirectional Level Shifter
with Automatic Direction Control
Features
PI4ULS3V16 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°C to +85°C
Package: 56-contact plastic 197-mil TQFN
Pin Configuration
Description
PI4ULS3V16, is a 16-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 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 VCCB.
To ensure the high impedance state during power-
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
Pin Description
Pin Name
xOE
xSEL
xAx
xBx
TEST_EN
OUT_SEL
GND
VccA,VCCB
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-56L(Top View)
2013-07-0004
PT0483 07/12/13
1




Pericom Semiconductor

PI4ULS3V16 Datasheet Preview

PI4ULS3V16 Datasheet

1.2V to 3.6V Universal Bi-directional Level Shifter

No Preview Available !

PI4ULS3V16
1.2V to 3.6V Universal Bidirectional Level
Shifter with Automatic Direction Control
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Block Diagram
Truth Table
Inputs
xOE 2SEL 1SEL
LLL
LLH
LHL
L HH
HXX
Outputs
Loading(2)
CL ≤ 50pF
CL ≤ 30pF
CL ≤ 20pF
CL ≤ 10pF
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
X = Dont Care or Irrelevant, Z = High Impedance
2. Refer to Figure2for output Loading Chart
Test Mode / Output Impedance Select
Figure 1: Block Diagram
TEST_EN
L
L
H
H
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
StorageTemperature...................................................................................-65oC to +150oC
DC SupplyVoltage VCCA............................................................................-0.5Vto +4.6V
DC SupplyVoltage VCCB............................................................................-0.5Vto +4.6V
Enable ControlPinDCInput Voltage....................................................-0.5Vto+4.6V
Voltage Range applied to anyI/O pins in the high-impedance
orPower-Offstate VIOZ(A).................................................................-0.5Vto+4.6V
Voltage Range applied to anyI/O pins in the high-impedance
orPower-Offstate VIOZ(B) .................................................................-0.5Vto+4.6V
Voltage Range applied to anyI/O pins in the high or Low
state VIO(A)..............................................................................-0.5VtoVCCA+0.5V
Voltage Range applied to anyI/O pins in the high or Low
state VIO(B)..............................................................................-0.5VtoVCCB+0.5V
Inputclamp Current(VI<0)..............................................................................-50mA
Ourput clamp current (VO <0)..........................................................................-50mA
Continuous output current .................................................................................±20mA
Continuous current throughVCCA, VCCB or GNDPin..............................±100mA
Package thermal impedance, 0JA(3)
ZF package.........................................................33ºC/W
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 conditions above those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
reliability.
2013-07-0004
PT0483 07/12/13
2


Part Number PI4ULS3V16
Description 1.2V to 3.6V Universal Bi-directional Level Shifter
Maker Pericom Semiconductor
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PI4ULS3V16 Datasheet PDF






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