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PI4ULS3V16M
1.2V to 3.6V Universal Bi-directional Level Shifter with Automatic Direction Control & Advanced Package Solution
Features
* Designed for low voltage operation: 1.2V to 3.3V 10% * 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 -40C to +85C * Packaging (Pb-free & Green): - 45 lead VFBGA (NL)
Description
Pericom Semiconductor's PI4ULS3V16M 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 1.4V to 3.6V. This arrangement permits universal bidirectional translation of differential signal levels over the voltage ranges. PI4ULS3V16M 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, SEL, 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 powerdown, the output-enable (OE) input should be tied to VCC through a pullup resistor.
Block Diagram

Applications
* Voltage Translation * Bus Relay * Mobile Terminals

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PS8776D
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PI4ULS3V16M 1.2V to 3.6V, Universal Bi-directional Level Shifter with Automatic Direction Control & Advanced Package Solution Pin Configuration (Top View)
1 2 3 4 5
A B C D E F G H J K L
TEST_EN
SEL
VCCB
OUT_SEL
1OE
VCCA
1A1 1A2 GND 1A4 1A5 1A7 2A2 2A3 2A5 2A7 2OE
1B1 1B3 1B5 1B7 2B1 2B3 2B5 2B7 2B8 GND
1B2 1B4 1B6 1B8 2B2 2B4 2B6 GND
VCCB
GND 1A3 1A6 1A8 2A1 2A4 2A6 2A8
VCCA
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PI4ULS3V16M 1.2V to 3.6V, Universal Bi-directional Level Shifter with Automatic Direction Control & Advanced Package Solution Maximum Ratings(3)
Supply voltage range:
(Absolute maximum ratings over operating free-air temperature range, unless otherwise noted) 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 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 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 .................... -65C to 150C
Notes: 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
XOE
Truth Table(1)
Inputs
xOE
Description 3-State Output Enable Inputs (Active LOW) Outputs Loading Selection Side A Inputs/Outputs Side B Inputs/Outputs Enable Test Mode Output Impedance Selection Ground Power
SEL
Outputs Loading(2) CL 50pF CL 30pF
Operation Bus B data to Bus A, or Bus A data to Bus B Z (Isolation)
SEL
XA X XBX
L L H
L H X
TEST_EN OUT_SEL GND VCCA, VCCB
Notes: 1. H = HIGH Signal Level L = LOW Signal Level X = Don't Care or Irrelevant Z = High Impedance 2. Refer to Figure 1 for Output Loading Chart
Test Mode / Output Impedance Select
TEST_EN L L H H Out_SEL L H L H Condition Normal Operation Low output impedance 300 Normal Operation High output impedance 2.2K Test_MODE A B Test_MODE B A
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PI4ULS3V16M 1.2V to 3.6V, Universal Bi-directional Level Shifter with Automatic Direction Control & Advanced Package Solution Recommended Operating Conditions(1, 2, 3)
Parameter VCCA, VCCB VIH Supply Voltage High-Level Input Voltage Low-Level Input Voltage High-Level Input Voltage Low-Level Input Voltage Input Voltage Output Voltage 1.2V to 1.95V I/O pins 2.3V to 2.7V 2.7V to 3.6V 1.2V to 1.95V I/O pins 2.3V to 2.7V 2.7V to 3.6V Control Inputs (OE and SEL) Control Inputs (OE and SEL) I/O pins and Control Inputs I/O pins and Control Inputs VCCO = 1.2V IOH High-Level Output Current VCCO = 1.4V I/O pins VCCO = 1.65V VCCO = 2.3V VCCO = 3.0V VCCO = 1.2V IOL Low-Level Output Current VCCO = 1.4V I/O pins VCCO = 1.65V VCCO = 2.3V VCCO = 3.0V V/t TA Input Transition rise or fall rate Operating Free-Air Temperature -40 1.4V to 1.95V 2.3V to 2.7V 2.7V to 3.6V 1.4V to 1.95V 2.3V to 2.7V 2.7V to 3.6V 0 0 0.65 x VCCB 1.7 2 0.35 x VCCB 0.7 0.8 3.6 3.6 -3 -5 -8 -9 -12 -3 5 8 9 12 10 85 V/ns C mA Description VCCI Min. 1.2 0.65 x VCCI 1.7 2 0.35 x VCCI 0.7 0.8 V Max. 3.6 Units
VIL
VIHB
VILB VI VO
Notes: 1. VCCI is the VCC associated with the data input port. 2. VCCO is the VCC associated with the data output port. 3. To ensure proper device operation, all unused device inputs must be held at VCCI or GND.
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PI4ULS3V16M 1.2V to 3.6V, Universal Bi-directional Level Shifter with Automatic Direction Control & Advanced Package Solution Electrical Characteristics for (Over recommended free-air temperature range, unless otherwise noted.)(3)
Parameter Test Conditions IOH = -100A IOH = -2mA IOH = -4mA High-Level Output Voltage IOH = -7mA IOH = -9mA IOH = -12mA IOL = 100A IOL = 2mA IOL = 4mA Low-Level Output Voltage IOL = 7mA IOL = 9mA IOL = 12mA VI = VCCI or GND, Quiescent Supply Current IO = 0 Control Inputs (OE and SEL) VI = VCCB or GND 3-State Output Current VO = VCCO or GND Power-off Leakage Current VI or VO = 0 to 3.6V Control Input Capacitance VI = VCCB or GND I/O Capacitance VO = VCCA/B or GND Description VCCA/VCCB 1.2V to 3.6V 1.2 1.4 1.65V 2.3V 3.0V 1.2V to 3.6V 1.2 1.4 1.65V 2.3V 3.0V 1.2V to 3.6V 1.2V to 3.6V 1.2V to 3.6V 0V 3 5 Min. VCCO - 0.1V 1 1.2 1.8 2.4 0.2 0.1 0.4 0.4 0.4 0.4 10 5 10 10 A 0.8
Typ. (1)
Max.
Units
VOH
V
VOL
ICC IOZ(2) IOFF CIN CIO II
pF
Notes: 1. All typical values are at TA = 25C. 2. For I/O ports, the parameter IOZ includes the input leakage current. 3. Parameters are specified under test mode conditions.
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PI4ULS3V16M 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
Parameter tPD tSK(b)(1) fmax 10pF load SEL='HIGH' B A A B 15 14 15 15 tSK(a)
(1)
(Over recommended free-air temperature range, unless otherwise noted.) From (Input) A B To (Output) B A VCCB = 1.2V VCCB = 1.5V VCCB = 1.8V VCCB = 2.5V 0.1V 0.15V 0.2V Typ 8 6 Min. 1.0 1.0 Max. 7.0 7.0 0.3 0.25 22 18 Min. 1.0 1.0 Max. 6.5 6.5 0.3 0.25 25 18 Min. 1.0 1.0 Max. 6.0 6.0 0.3 0.25 28 20 VCCB = 3.3V 0.3V Min. 1.0 1.0 Max. 5.0 5.5 0.3 0.25 MHz ns Units
Timing Characteristics for VCCA = 1.8V 0.15V
Parameter tPD tSK(b)(1) fMAX 10pF load SEL='HIGH' B A A B 15 20 tSK(a)
(1)
(Over recommended free-air temperature range, unless otherwise noted.) From (Input) A B To (Output) B A VCCB = 1.2V VCCB = 1.5V VCCB = 1.8V VCCB = 2.5V VCCB = 3.3V 0.1V 0.15V 0.2V 0.3V Typ 8 6 Min. 1.0 1.0 Max. 6.0 6.0 0.25 0.2 18 20 25 25 Min. 0.5 0.5 Max. 5.5 5.5 0.25 0.2 35 25 Min. 0.5 0.5 Max. 5.0 5.0 0.25 0.2 37 27 Min. 0.5 0.5 Max. 4.5 4.5 0.25 0.2 MHz ns Units
Timing Characteristics for VCCA = 2.5V 0.2V
Parameter tPD tSK(a)
(1)
(Over recommended free-air temperature range, unless otherwise noted.) From (Input) A B To (Output) B A VCCB = 1.2V Typ 8 6 VCCB = 1.5V VCCB = 1.8V VCCB = 2.5V VCCB = 3.3V 0.1V 0.15V 0.2V 0.3V Min. 1.0 1.0 Max. 5.5 5.5 0.25 0.2 B A A B 15 23 18 25 25 35 Min. 0.5 0.5 Max. 5.0 5.0 0.25 0.2 40 40 Min. 0.5 0.5 Max. 4.5 4.5 0.25 0.2 50 45 Min. 0.5 0.5 Max. 4.0 4.0 0.25 0.2 MHz ns Units
tSK(b)(1) fmax 10pF load SEL='HIGH'
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.
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PS8776D
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PI4ULS3V16M 1.2V to 3.6V, Universal Bi-directional Level Shifter with Automatic Direction Control & Advanced Package Solution Timing Characteristics for VCCA = 3.3V 0.3V
Parameter tPD tSK(b)(1) fmax 10pF load SEL='HIGH' B A A B 16 24 20 25 tSK(a)
(1)
(Over recommended free-air temperature range, unless otherwise noted.) From (Input) A B To (Output) B A VCCB = 1.2V Typ 7 6 VCCB = 1.5V VCCB = 1.8V VCCB = 2.5V 0.1V 0.15V 0.2V Min. 1.0 1.0 Max. 5.0 5.0 0.25 0.2 25 35 Min. 0.5 0.05 Max. 4.5 4.5 0.25 0.2 45 50 Min. 0.5 0.5 Max. 4.0 4.0 0.25 0.2 53 55 VCCB = 3.3V 0.3V Min. 0.5 0.5 Max. 3.5 3.5 0.25 0.2 MHz ns Units
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.
Operating Characteristics (VCCA and VCCB = 2.5V, TA = 25C)
Parameter Cpd (1) (VCCA) Power Dissipation Capacitance A to B Power Dissipation Capacitance B to A Power Dissipation Capacitance A to B Power Dissipation Capacitance B to A Outputs Enabled Outputs Disabled Outputs Enabled Outputs Disabled Outputs Enabled Outputs Disabled Outputs Enabled Outputs Disabled CL = 0 f = 10 MHz CL = 0 f = 10 MHz Test Conditions Typ. 15 2 30 10 30 10 15 2 pF pF Units
Cpd (1) (VCCB)
Note: 1. This parameter is specified under test mode conditions.
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PS8776D
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PI4ULS3V16M 1.2V to 3.6V, Universal Bi-directional Level Shifter with Automatic Direction Control & Advanced Package Solution Parameter Measurement Information
VCCA/VCCB 1.2V ~ 1.6V 1.8V 0.15V 2.5V 0.2V 3.3V 0.3V CL 10pF 20pF 30pF 50pF
Input Output CL
Test Circuit for tpd / tsk
VCCI VCCI/2 tPLH Output VCCO/2 VCCI/2 tPHL 0V VOH VOL
VCCO/2
Voltage Waveforms Propagation Delay Times Figure 1. Load Circuit and Voltage Waveforms
Notes: * CL includes probe and jig capacitance. * All input pulses are supplied by generators having the following characteristics: PRR 10Mz, ZO = 50, tr 2.5ns, tf 2.5ns. * The outputs are measured one at a time with one transition per measurement. * VCCI defines the input port (VCCA or VCCB). * VCCO defines the output port (VCCA or VCCB).
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PS8776D
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PI4ULS3V16M 1.2V to 3.6V, Universal Bi-directional Level Shifter with Automatic Direction Control & Advanced Package Solution Packaging Mechanical: 45-lead VFBGA

Ordering Information
Ordering Code PI4ULS3V16MNLE Packaging Code NL Package Description Pb-free & Green, 45-ball VFBGA
Notes: * Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ * E= Pb-free and Green * X suffix = Tape/Reel
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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PS8776D
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