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PDF PI4ULS3V08M Data sheet ( Hoja de datos )
| Número de pieza | PI4ULS3V08M | |
| Descripción | 1.2V to 3.6V Universal Bi-directional Level Shifter | |
| Fabricantes | Pericom Semiconductor | |
| Logotipo |  |
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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
1 page  
PI4ULS3V08M
1.2V to 3.6V, Universal Bi-directional Level Shifter with
Automatic Direction Control & Advanced Package Solution
Timing Characteristics for VCCA = 1.5V ±0.1V
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
From
(Input)
To
(Output)
VCCB = 1.2V VCCB = 1.5V
±0.1V
Typ Min. Max.
tPD
tSK(a)(1)
tSK(b)(1)
A
B
B
A
8 1.0 7.0
6 1.0 7.0
0.3
0.25
VCCB = 1.8V
±0.15V
Min. Max.
1.0 6.5
1.0 6.5
0.3
0.25
VCCB = 2.5V
±0.2V
Min. Max.
1.0 6.0
1.0 6.0
0.3
0.25
VCCB = 3.3V
±0.3V
Min. Max.
1.0 5.0
1.0 5.5
0.3
0.25
fmax B A
12 15
20
22
25
10pF load
AB
15 15
15
16
17
Units
ns
MHz
Timing Characteristics for VCCA = 1.8V ±0.15V
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
From
(Input)
To
(Output)
VCCB = 1.2V VCCB = 1.5V
±0.1V
Typ Min. Max.
tPD
tSK(a)(1)
tSK(b)(1)
A
B
B
A
8 1.0 6.0
6 1.0 6.0
0.25
0.2
fMAX
10pF load
B
A
A
B
13 15
16 20
VCCB = 1.8V
±0.15V
Min. Max.
0.5 5.5
0.5 5.5
0.25
0.2
20
20
VCCB = 2.5V
±0.2V
Min. Max.
0.5 5.0
0.5 5.0
0.25
0.2
25
22
VCCB = 3.3V
±0.3V
Min. Max.
0.5 4.5
0.5 4.5
0.25
0.2
30
24
Units
ns
MHz
Timing Characteristics for VCCA = 2.5V ±0.2V
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
From
(Input)
To
(Output)
VCCB = 1.2V
VCCB = 1.5V
±0.1V
VCCB = 1.8V
±0.15V
VCCB = 2.5V
±0.2V
VCCB = 3.3V
±0.3V
Typ Min. Max. Min. Max. Min. Max. Min. Max.
Units
tPD
tSK(a)(1)
tSK(b)(1)
A
B
B
A
8 1.0 5.5 0.5 5.0 0.5 4.5 0.5 4.0
6 1.0 5.5 0.5 5.0 0.5 4.5 0.5 4.0
ns
0.25 0.25 0.25 0.25
0.2 0.2 0.2 0.2
fmax
10pF load
B
A
A
B
13 15
18 23
22 35
30 35
40
35
MHz
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.
06-0046
5
PS8774F
04/05/06
5 Page | ||
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| PDF Descargar | [ Datasheet PI4ULS3V08M.PDF ] | |
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