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Pericom Semiconductor

PI4ULS3V08M Datasheet Preview

PI4ULS3V08M Datasheet

1.2V to 3.6V Universal Bi-directional Level Shifter

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PI4ULS3V08M
1.2V to 3.6V Universal Bi-directional Level Shifter with Automatic
Direction Control & Advanced Package Solution
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
• IOFF supports partial Power-Down mode operation
• 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
• Packaging (Pb-free & Green):
– 32-contact TQFN (ZL)
Applications
• Voltage Translation
• Bus Relay
• Mobile Devices
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.
The device is fully specified for partial-power-down applications
using IOFF. The IOFF circuitry disables the outputs, preventing
damaging current backflow through the device when it is powered
down.
To ensure the high impedance state during power-up or power-
down, the output-enable (OEx) input should be tied to VCC through
a pullup resistor: the minimum value of the resistor is determined
by the current-sinking capability of the driver.
Pin Configuration
Block Diagram
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B1
B2
VCCB
B3
B4
GND
B5
B6
VCCB
B7
B8
1
2
3
4
5
6
7
8
9
10
11
27 A1
26 A2
25 VCCA
24 A3
23 A4
22 GND
21 A5
20 A6
19 VCCA
18 A7
17 A8
06-0046
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1
PS8774F
04/05/06




Pericom Semiconductor

PI4ULS3V08M Datasheet Preview

PI4ULS3V08M Datasheet

1.2V to 3.6V Universal Bi-directional Level Shifter

No Preview Available !

PI4ULS3V08M
1.2V to 3.6V, Universal Bi-directional Level Shifter with
Automatic Direction Control & Advanced Package Solution
Maximum Ratings(3)
(Absolute maximum ratings over operating free-air temperature range, unless otherwise noted)
Supply voltage range:
VCCA.................... –0.5V to 4.6V
VCCB.................... –0.5V to 4.6V
Input voltage range, VI(1) Control Inputs...... –0.5V to 4.6V
Voltage Range applied to any I/O pins in the high-impedance
or Power-Off state, VIO (1) :
A Port ....................... –0.5V to 4.6V
B Port................... –0.5V to 4.6V
Input clamp current, IIK (VI <0)................................... –50mA
Output clamp current, IOK (VO <0).............................. –50mA
Continuous output current, IO ....................................... ±20mA
Continuous current through VCCA, VCCB or GND ..... ±100mA
Storage temperature range, TSTG .................... –65°C to 150°C
Voltage Range applied to any I/O pins in the High or Low
state VIO (1, 2):
A Port .........–0.5V to VCCA +0.5V
B Port....... –0.5V to VCCB +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 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.
Pin Description
Pin Name Description
OEx 3-State Output Enable Inputs (Active LOW)
AX Side A Inputs/Outputs
BX Side B Inputs/Outputs
TEST_EN Enable Test Mode
OUT_SEL Output impedance select
GND
Ground
VCCA, VCCB Power
Truth Table(1)
Input
OEx
Outputs Loading
L CL ≤ 50pF
H
Note:
1. H = HIGH Signal Level
L = LOW Signal Level
Z = High Impedance
Operation
Bus B data to bus A, or
Bus A data to Bus B
Z (Isolation)
Test Mode / Output Impedance Select
TEST_EN Out_SEL
Condition
L L Normal Operation
Low output impedance 300Ω
L H Normal Operation
High output impedance 2.2KΩ
H L Test_MODE A → B
H H Test_MODE B → A
06-0046
2
PS8774F
04/05/06


Part Number PI4ULS3V08M
Description 1.2V to 3.6V Universal Bi-directional Level Shifter
Maker Pericom Semiconductor
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PI4ULS3V08M Datasheet PDF






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