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PDF PI4ULS3V08 Data sheet ( Hoja de datos )
| Número de pieza | PI4ULS3V08 | |
| Descripción | 1.2V to 3.6V Universal Bidirectional Level Shifter | |
| Fabricantes | Pericom Semiconductor | |
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PI4ULS3V08
1.2V to 3.6V Universal Bidirectional
Level Shifter with Automatic Direction Control
Features
• PI4ULS3V08 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
• 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): 36-contact TQFN (ZF36)
Applications
• Voltage Translation
• Bus Relay
Description
PI4ULS3V08, 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 PI4ULS3V08 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, OEx, 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 pullup resistor: the minimum value of the resistor is determined
by the current-sinking capability of the driver.
Pin Configuration
B2
VCCB
B3
B4
GND
B5
B6
VCCB
B7
B8
1
2
3
4
5
6
7
8
9
10
28 A2
27 VCCA
26 A3
25 A4
24 GND
23 A5
22 A6
21 VCCA
20 A7
19 A8
08-0139
1
PS8773H
06/13/08
1 page  
PI4ULS3V08
1.2V to 3.6V Universal Bidirectional
Level Shifter with Automatic Directions Control
Timing Characteristics for VCCA = 1.8V ±0.15V
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
tPD
tSK(a)(1)
tSK(b)(1)
fMAX
10pF load
From
(Input)
A
B
B
A
To
(Output)
B
A
A
B
VCCB = 1.2V VCCB = 1.5V VCCB = 1.8V VCCB = 2.5V VCCB = 3.3V
±0.1V
±0.15V
±0.2V
±0.3V
Typ Min. Max. Min. Max. Min. Max. Min. Max.
8 1.0 6.0 0.5 5.5 0.5 5.0 0.5 4.5
6 1.0 6.0 0.5 5.5 0.5 5.0 0.5 4.5
0.25 0.25 0.25 0.25
0.2 0.2 0.2 0.2
25 35 45 55 65
30 40 45 50 55
Units
ns
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.
Timing Characteristics for VCCA = 2.5V ±0.2V
(Over recommended free-air temperature range, unless otherwise noted.)
Parameter
tPD
tSK(a)(1)
tSK(b)(1)
fmax
10pF load
From
(Input)
A
B
B
A
To
(Output)
B
A
A
B
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.
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
0.25 0.25 0.25 0.25
0.2 0.2 0.2 0.2
30 40 50 75 80
40 50 55 75 80
Units
ns
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.
08-0139
5
PS8773H
06/13/08
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet PI4ULS3V08.PDF ] | |
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