PI4ULS5V201 [PERICOM]
1-Bit Bi-directional Level Shifter with Automatic Sensing;
| 型号： | PI4ULS5V201 |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | 1-Bit Bi-directional Level Shifter with Automatic Sensing |
| 文件： | 总11页 (文件大小：534K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI4ULS5V201
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1-Bit Bi-directional Level Shifter with Automatic Sensing
Features
Description
VCCA can be Less than, Greater than or Equal to
The PI4ULS5V201 is a 1-bit configurable dual
VCCB
supply bidirectional auto sensing translator that does not
require a directional control pin. The A and B ports are
designed to track two different power supply rails, VCCA
and VCCB respectively. Both the VCCA and VCCB supply
rails are configurable from 1.2 V to 5.5 V. This allows
voltage logic signals on the VCCA side to be translated
into lower, higher or equal value voltage logic signals on
the VCCB side, and vice-versa.
1.2V to 5.5V on A Port and 1.2V to 5.5V on B Port
High-Speed with 20 Mb/s Guaranteed Data Rate
for Push-pull application
High-Speed with 2 Mb/s Guaranteed Data Rate for
Open-drain application
No Direction-Control Signal Needed
Low Bit-to-Bit Skew
Non-preferential Power-up Sequencing
ESD protection exceeds 8KV HBM per JESD22-
A114
The translator has integrated 10 kΩ pull-up resistors
on the I/O lines. The integrated pull-up resistors are used
to pull-up the I/O lines to either VCCA or VCCB. The
PI4ULS5V201 is an excellent match for open-drain
applications such as the I2C communication bus.
Integrated 10 kΩ Pull-up Resistors
Package: UDFN1.2x1.6-8L and SOT23-6L
Applications
I2C, SMBus, MDIO
Low Voltage ASIC Level Translation
Mobile Phones, PDAs, Camera
Pin Description
Pin Configuration
Pin
Type
Description
Name
VCCB
NC
B
VCCA
A
A-port supply voltage.1.2V ≤ VCCA
5.5 V
Input/output A. Referenced to VCCA.
≤
VCCA
Power
I/O
A
GND
NC
GND Ground.
GND
EN
Output enable (active High). Pull EN low
to place all outputs in 3-state mode.
Input/output B. Referenced to VCCB
EN
B
Input
I/O
UDFN1.2x1.6-8L
B-port supply voltage. 1.2 V ≤ VCCB
5.5V
Not connect
≤
VCCB
NC
Power
-
1
A
EN
B
6
2
5
GND
3
4
VCCA
VCCB
SOT23-6L
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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Block Diagram
Figure 1: Block Diagram
Maximum Ratings
Note:
o
o
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 condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
StorageTemperature...................................................................................-65 Cto+150 C
DCSupplyVoltageportB..............................................................................-0.3Vto+5.5V
DCSupplyVoltageportA..............................................................................-0.3Vto+5.5V
Vi(A)referencedDCInput/OutputVoltage..............................................-0.3Vto+5.5V
Vi(B)referencedDCInput/OutputVoltage...............................................-0.3Vto+5.5V
EnableControlPinDCInputVoltage....................................... -0.3Vto+5.5V
Shortcircuitduration(I/OtoGND) ......................................................40mA
Recommended operation conditions
Symbol
VCCA
VCCB
VEN
Parameter
Min
1.2
Typ
Max
5.5
Unit
V
-
-
-
-
VCCA Positive DC Supply Voltage
1.2
5.5
V
VCCB Positive DC Supply Voltage
Enable Control Pin Voltage
I/O Pin Voltage
GND
GND
5.5
V
VIO
5.5
V
TA
-40
-
+85
°C
Operating Temperature Range
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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DC Electrical Characteristics
Unless otherwise specified, -40°C≤TA≤85°C, 1.2V≤Vcc≤5.5V
Symbol
VIHB
VILB
VIHA
VILA
VIH
Parameter
Test Conditions
Min
Typ
Max
Unit
V
VCCB
0.2
–
–
–
B port Input HIGH Voltage
B port Input LOW Voltage
A port Input HIGH Voltage
A port Input LOW Voltage
Control Pin Input HIGH Voltage
Control Pin Input LOW Voltage
B port Output HIGH Voltage
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.15
-
-
V
VCCA
0.2
V
-
0.15
-
V
VCCA
0.2
V
VIL
-
0.15
-
V
2/3 *
VCCB
VOHB
B port source current = -20 µA
B port sink current =1 mA
A port source current= -20 µA
A port sink current =1 mA
V
1/3 *
VCCB
VOLB
VOHA
VOLA
IQVCB
IQVCA
B port Output LOW Voltage
A port Output HIGH Voltage
A port Output LOW Voltage
VCCB Supply Current
-
-
V
V
2/3 *
VCCA
-
-
1/3 *
VCCA
-
-
-
-
-
-
V
B port and A port unconnected, VEN
0.5
0.3
0.1
0.1
5.0
5.0
1
µA
µA
µA
µA
= VCCA
B port and A port unconnected, VEN
VCCA Supply Current
= VCCA
B port and A port unconnected, VEN
= GND
ITS−VCCB B Tri−state Output Mode
A Tri−state Output Mode Supply B port and A port unconnected, VEN
ITS−VCCA
1
Current
= GND
I/O Tri−state Output Mode
Leakage
Current
IOZ
-
-
-
0.1
10
1.0
-
µA
RPU
Pull−Up Resistors I/O A and B
-
kΩ
All units are production tested at T = +25°C. Limits over the operating temperature range are guaranteed by design.
Note:
A
Typical values are for VCCB = +2.8 V, VCCA = +1.8 V and TA = +25°C.
AC Electrical characteristics
Timing Characteristics − Rail−to−Rail Driving Configuration
(I/O test circuits of Figures 2, 3 and 7, CLOAD = 15 pF, driver output impedance ≤ 50Ω, RLOAD = 1 MΩ, unless otherwise specified)
Symbol
VCCA= 1.8V ,
tRB
Parameter
Test Conditions
Min
Typ
Max
Unit
V
VCCB = 2.8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
15
15
25
10
15
15
15
15
5
nS
nS
B port Rise Time
B port Fall Time
A port Rise Time
A port Fall Time
tFB
tRA
-
nS
tFA
-
nS
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
MDR
-
nS
Propagation Delay
(Driving A)
-
nS
-
nS
Propagation Delay
(Driving B)
-
nS
-
nS
Part−to−Part Skew
20
-
Mbps
Maximum Data Rate
To be continued.
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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Continuously.
Symbol
VCCA= 2.8V ,
tRB
Parameter
Test Conditions
Min
Typ
Max
Unit
V
VCCB =1.8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
25
10
20
15
15
15
15
15
5
B port Rise Time
B port Fall Time
A port Rise Time
A port Fall Time
nS
nS
nS
nS
nS
nS
tFB
tRA
-
tFA
-
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
MDR
-
Propagation Delay
(Driving A)
-
-
Propagation Delay
(Driving B)
nS
nS
-
-
Part−to−Part Skew
nS
20
-
Maximum Data Rate
Mbps
VCCA= 2.5V ,
tRB
V
VCCB =3.6
B port Rise Time
B port Fall Time
A port Rise Time
A port Fall Time
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
15
10
15
10
15
15
15
15
5
nS
nS
tFB
tRA
-
nS
tFA
-
nS
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
MDR
Propagation Delay
(Driving A)
-
nS
-
nS
Propagation Delay
(Driving B)
-
nS
-
nS
Part−to−Part Skew
-
nS
Maximum Data Rate
20
-
Mbps
VCCA= 3.6V ,
tRB
V
VCCB =2.5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
15
10
15
15
15
15
15
15
5
nS
nS
B port Rise Time
B port Fall Time
A port Rise Time
A port Fall Time
tFB
tRA
-
nS
tFA
-
nS
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
MDR
-
nS
Propagation Delay
(Driving A)
-
nS
-
nS
Propagation Delay
(Driving B)
-
nS
-
nS
Part−to−Part Skew
20
-
Mbps
Maximum Data Rate
To be continued.
2015-07-0024
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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Continuously.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
VCCA= 1.5V ,
V
VCCB = 5.5
tRB
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
15
20
30
10
20
20
20
20
5
nS
nS
B port Rise Time
B port Fall Time
A port Rise Time
A port Fall Time
tFB
tRA
-
nS
tFA
-
nS
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
MDR
-
nS
Propagation Delay
(Driving A)
-
nS
-
nS
Propagation Delay
(Driving B)
-
nS
-
nS
Part−to−Part Skew
20
-
Mbps
Maximum Data Rate
VCCA= 5.5,
tRB
V
VCCB =1.5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
30
20
15
40
20
20
20
20
5
nS
nS
B port Rise Time
B port Fall Time
A port Rise Time
A port Fall Time
tFB
tRA
-
nS
tFA
-
nS
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
MDR
VCCA= 1.2V ,
tRB
-
nS
Propagation Delay
(Driving A)
-
nS
-
nS
Propagation Delay
(Driving B)
-
nS
-
nS
Part−to−Part Skew
20
-
Mbps
Maximum Data Rate
V
VCCB = 5.5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
nS
nS
B port Rise Time
B port Fall Time
A port Rise Time
A port Fall Time
15
30
30
15
20
15
15
15
5
tFB
tRA
-
nS
tFA
-
nS
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
-
nS
Propagation Delay
(Driving A)
-
nS
-
nS
Propagation Delay
(Driving B)
-
nS
-
nS
Part−to−Part Skew
MDR
VCCA= 5.5V ,
tRB
20
-
Mbps
Maximum Data Rate
V
VCCB = 1.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
nS
nS
30
15
15
30
15
15
20
15
5
B port Rise Time
B port Fall Time
A port Rise Time
A port Fall Time
tFB
tRA
-
nS
tFA
-
nS
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
-
nS
Propagation Delay
(Driving A)
-
nS
-
nS
Propagation Delay
(Driving B)
-
nS
-
nS
Part−to−Part Skew
MDR
20
-
Mbps
Maximum Data Rate
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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Timing Characteristics – Open Drain Driving Configuration
(I/O test circuits of Figures 4, 5 and 7, CLOAD = 15 pF, driver output impedance ≤ 50Ω, RLOAD = 1 MΩ, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
1.2 ≤ VCCA ≤ VCCB ≤ 5.5V
tRB
B port Rise Time
B port Fall Time
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2
-
-
-
-
-
-
-
-
-
-
450
30
nS
nS
tFB
tRA
A port Rise Time
A port Fall Time
450
30
nS
tFA
nS
tPHL−A−B
tPLH−A−B
tPHL−B−A
tPLH−B−A
tPPSKEW
MDR
300
300
300
300
50
nS
Propagation Delay
(Driving A)
nS
nS
Propagation Delay
(Driving B)
nS
Part−to−Part Skew
nS
Maximum Data Rate
-
Mbps
Test Circuits
PI4ULS5V201
PI4ULS5V201
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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Functional Description
The PI4ULS5V201 is a 1-bit configurable dual-supply bidirectional auto sensing translator that does not require a
directional control pin. The A and B ports are designed to track two different power supply rails, VCCA and VCCB
respectively. Both the VCCA and VCCB supply rails are configurable from 1.2 V to 5.5 V. This allows voltage logic
signals on the VCCA side to be translated into lower, higher or equal value voltage logic signals on the VCCB side, and
vice−versa.
The translator has integrated 10 kΩ pull−up resistors on the I/O lines. The integrated pull-up resistors are used to
pull−up the I/O lines to either VCCA or VCCB. The PI4ULS5V201 is an excellent match for open−drain applications
such as the I2C communication bus.
Application Information
Level Translator Architecture
The PI4ULS5V201 auto sense translator provides bidirectional voltage level shifting to transfer data in multiple
supply voltage systems. This device has two supply voltages, VCCA and VCCB, which set the logic levels on the input
and output sides of the translator. When used to transfer data from A port to B port, input signals referenced to the
VCCA supply are translated to output signals with a logic level matched to VCCB. In a similar manner, translation shifts
input signals with a logic level compatible to VCCB to an output signal matched to VCCA. The PI4ULS5V201 consists of
two bidirectional channels that independently determine the direction of the data flow without requiring a directional
pin. The one-shot circuits are used to detect the rising or falling input signals. In addition, the one shots decrease
the rise and fall time of the output signal for high−to−low and low−to−high transitions. Each input/output channel has
an internal 10 kΩ pull. The magnitude of the pull-up resistors can be reduced by connecting external resistors in
parallel to the internal 10 kΩ resistors.
Input Driver Requirements
The rise (tR) and fall (tF) timing parameters of the open drain outputs depend on the magnitude of the pull−up
resistors. In -addition, the propagation times (tPD), skew (tPSKEW) and maximum data rate depend on the impedance of
the device that is connected to the translator. The timing parameters listed in the data sheet assume that the output
impedance of the drivers connected to the translator is less than 50 kΩ.
Enable Input (EN)
The PI4ULS5V201 has an Enable pin (EN) that provides tri−state operation at the I/O pins. Driving the Enable
pin to a low logic level minimizes the power consumption of the device and drives the I/O VCCB and I/O VCCA pins to a
high impedance state. Normal translation operation occurs when the EN pin is equal to a logic high signal. The EN
pin is referenced to the VCCA supply and has overvoltage tolerant protection.
Power Supply Guidelines
During normal operation, supply voltage VCCA can be greater than, less than or equal to VCCB. The sequencing of
the power supplies will not damage the device during the power up operation. For optimal performance, 0.01 μF to
0.1μFdecoupling capacitors should be used on the VCCA and VCCB power supply pins. Ceramic capacitors are a good
design choice to filter and bypass any noise signals on the voltage lines to the ground plane of the PCB. The
noise immunity will be maximized by placing the capacitors as close as possible to the supply and ground pins,
along with minimizing the PCB connection traces.
2015-07-0024
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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Mechanical Information
UDFN1.2x1.6-8L
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PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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Recommended Land pattern for DFN1.6*1.2-8L
Note:
All linear dimensions are in millimeters
2015-07-0024
PT0462-3
07/28/15
10
PI4ULS5V201
1-Bit Bi-directional Level Shifter with
Automatic Sensing
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SOT23-6L
Ordering Information
Part No.
Package Code
Package
PI4ULS5V201XVE
PI4ULS5V201TAE
XV
TA
Lead free and Green 8-pin UDFN1.2x1.6
Lead free and Green 6-pin SOT23
Note:
E = Pb-free and Green
Adding X Suffix= Tape/Reel
Pericom Semiconductor Corporation 1-800-435-2336 www.pericom.com
Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply
the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The
company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom.
2015-07-0024
PT0462-3
07/28/15
11
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