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PI74AUC164245
16-Bit 0.8V to 2.7V Scaled Configurable Level Shifting Transceiver with 3-State Outputs
Features
* PI74AUC164245 is designed for low voltage operation: 0.8V to 2.7V * IOFF supports partial Power-Down mode operation * Drive Capability 16mA @ 2.5V * 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: - 48-pin plastic 240-mil TSSOP (A) - 48-pin plastic 173-mil TVSOP (K)
Description
Pericom Semiconductor's AUC series of logic circuits are produced using the Company's advanced CMOS technology, achieving industry leading performance. The PI74AUC164245 is a 16-bit (dual-octal) noninverting bus transceiver that contains two separate supply rails. B port (VCCB) set to operate at 0.8 to 2.5V and A port (VCCA) set to operate at 0.8 to 2.5V. This arrangement permits universal bidirectional translation over the voltage ranges. The PI74AUC164245 is designed for asynchronous communication between data buses. Data is transmitted from the A bus to the B bus or vice versa, depending on the logic level at the direction control (DIR)input. The output-enable (OE) input is used to disable outputs so buses are isolated. The control pins, 1DIR, 2DIR, 1OE and 2OE are supplied by VCCA. 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 (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.
Block Diagram
1DIR
1 48
1OE
1A1
47 2 To Seven Other Channels 24 25
2OE 1 B1
2DIR
2A1
36 13
2 B1
To Seven Other Channels
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PS8730
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PI74AUC164245 16-Bit 1.2V to 2.7V Level Shifting Transceiver with 3-State Outputs Maximum Ratings
(Absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range: VCCA and VCCB.......... -0.5V to 3.6V Input Voltage Range, VI(1): I/O port A ................ -0.5V to 3.6V I/O port B ................ -0.5V to 3.6V Control Inputs ........... -0.5V to 3.6V Voltage Range applied to any output in the high-impedance or Power-Off state, VO (1) : (A Port) .......................... -0.5V to 3.6V (B Port) ..................... -0.5V to 3.6V Voltage Range applied to any output in the highor Low state VO (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 Package thermal impedance, 0JA(3): A package........................... 104C/W K package .......................... 107C/W Storage temperature range, TSTG .................... -65C to 150C
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 max. 3. The package thermal impedance is calculated in accordance with JESD 51. 4. 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 Configuration
1DIR 1B1 1B2 GND 1B3 1B4 1B5 1B6
Pin Description
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1OE 1A1 1A2 GND 1A3 1A4 1A5 1A6
Pin Name
XOE XDIR XAX XBX
Description 3-State Output Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3-state Outputs Side B Inputs or 3-state Outputs Ground Power
VCCB
VCCA
GND VCC
GND 1B7 1B8
2B1 2B2 GND 2B3 2B4 VCCB 2B5 2B6
GND 1A7 1A8
2A1 2A2 GND 2A3 2A4 VCCA 2A5 2A6
Truth Table(4) (each 8-bit section)
Inputs OE L L H DIR L H X Operation B data to A bus A data to B bus Z (Isolation)
Notes: 1. H = HIGH Signal Level, L = LOW Signal Level, X = Don't Care or Irrevelant, Z = High Impedence
GND 2B7 2B8 2DIR
GND 2A7 2A8 2OE
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PS8730
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PI74AUC164245 16-Bit 1.2V to 2.7V Level Shifting Transceiver with 3-State Outputs Recommended Operating Conditions (1)
Parameter VCCA VCCB VIH Description Supply Voltage Supply Voltage High-Level Input Voltage Low-Level Input Voltage High-Level Input Voltage Low-Level Input Voltage Input Voltage Output Voltage Active State 3-State 0.8V 1.1V IOH High-Level output Current 1.4V 1.65V 2.3V 0.8V 1.1V IOL Low-Level output Current 1.4V 1.65V 2.3V t/v TA Input transition rise or fall rate Operating Free-Air Temperature -40 0.8V Data Inputs 1.1V to 1.95V 2.3V to 2.7V 0.8V Data Inputs Control Inputs (Referenced to VCCA) Control Inputs (Referenced to VCCA) 1.1V to 1.95V 2.3V to 2.7V 0.8V 1.1V to 1.95V 2.3V to 2.7V 0.8V 1.1V to 1.95V 2.3V to 2.7V 0 0 0 VCCA 0.65 x VCCA 1.7 0 0.35 x VCCA 0.7 2.7V VCCO 2.7V -0.7 -3 -5 -8 -9 0.7 3 5 8 9 5 85 ns/V C mA
VCCI(2)
VCCO(3)
Min. 0.8 0.8 VCCI 0.65 x VCCI 1.7
Max. 2.7 2.7
Units
0 0.35 x VCCI 0.7 V
VIL
VIH
VIL VI VO
Notes: 1. All unused data inputs of the device must be held at VCCI or GND to ensure proper data device operation. 2. VCCI is the VCC (either VCCA or VCCB) associated with the data input port. 3. VCCO is the VCC (either VCCA or VCCB) associated with the data output port.
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PS8730
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PI74AUC164245 16-Bit 1.2V to 2.7V Level Shifting Transceiver with 3-State Outputs Electrical Characteristics (A Port or B Port) (Over recommended operating free-air temperature range )
Parameters Test Conditions IOH = - 100A IOH = - 0.7mA VOH IOH = - 3mA IOH = - 5mA IOH = - 8mA IOH = - 9mA IOH = 100A IOH = 0.7mA VOL IOH = 3mA IOH = 5mA IOH = 8mA IOH = 9mA II VI = 0 to 2.7V VO = 0 to 2.7V VO = VCCO or GND OE = VIH OE = Don't care VI = VCCI or GND, IO = 0 VO = 2.5V or GND VI = VIH VI = VIH VI = VIH VI = VIH VI = VIH VI = VIH VI = VIL VI = VIL VI = VIL VI = VIL VI = VIL VI = VIL VCCI (1) 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0V 0V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 0.8V - 2.7V 2.5V 2.5V VCCO (2) 0.8V - 2.7V 0.8V 1.1V 1.4V 1.65V 2.3V 0.8V - 2.7V 0.8V 1.1V 1.4V 1.65V 2.3V 0V - 2.7V 0V 0.8V - 2.7V 0V 0.8V - 2.7V 2.5V 2.5V 4 5 0.25 0.3 0.4 0.45 0.6 5 10 10 10 10 20 pF A 0.8 1.0 1.2 1.8 0.2 V Min. VCCO - 0.1V 0.55 Typ. (3) Max. Units
Control Inputs VI = VCCA or GND, VCCA = 0 to 2.7V Ioff IOZ ICC
CI CIO
Control Inputs VI = 2.5V or GND I/O Ports
Notes: 1. VCCI is the VCC (either VCCA or VCCB) associated with the input port. 2. VCCO is the VCC (either VCCA or VCCB) associated with the output port. 3. All typical values are at TA = 25C 4. For I/O ports, the parameter IOZ includes the input leakage current.
Switching Characteristics (Over recommended operating free-air temperature range for VCCA = 0.8 V (See Figure 1)
Parameter tpd ten tdis From (Input) A B OE OE OE OE To (Output) B A A B A B VCCB = 0.8V Typ. 8.5 8.5 8.0 9.0 8.5 9.0 VCCB = 1.2 0.1V Typ. 5.0 7.5 8.0 5.0 8.5 6.8 ns Units
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PS8730
08/17/04
PI74AUC164245 16-Bit 1.2V to 2.7V Level Shifting Transceiver with 3-State Outputs Switching Characteristics (Over recommended operating free-air temperature range for VCCA = 1.2V0.1V (See Figure 1)
Parameter tpd ten tdis From (Input) A B OE OE OE OE To (Output) B A A B A B VCCB = 0.8V Typ. 8 5 3.2 8 4.6 9 VCCB = 1.2 0.1V Min. 1 1 0.7 0.7 0.8 0.8 Max. 4.5 4.5 4.6 4.6 6.2 6.2 VCCB = 1.5 0.1V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 3.5 4.0 4.6 3.6 6.2 5 VCCB = 1.8 0.15V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Typ. 2 3 3.2 2.2 4.6 3.5 Max. 3.5 4.0 4.6 3.6 6.2 4.8 VCCB = 2.5 0.2V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 3 3.5 4.6 3.5 6.2 4.3 ns Units
Switching Characteristics (Over recommended operating free-air temperature range for VCCA = 1.5V0.1V (See Figure 1)
Parameter tpd ten tdis From (Input) A B OE OE OE OE To (Output) B A A B A B VCCB = 1.2 0.1V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 4.5 3.5 3.3 4.3 4.5 5.5 VCCB = 1.5 0.1V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 3.3 3.3 3.1 3.1 4.7 4.7 VCCB = 1.8 0.15V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Typ. 2.3 2 2.3 2.3 3 3 Max. 3.1 3 3.3 3.3 4.5 4.5 VCCB = 2.5 0.2V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 2.6 2.8 3.3 3.2 4.5 3.7 ns Units
Switching Characteristics (Over recommended operating free-air temperature range for VCCA = 1.8V0.15V (See Figure 1)
Parameter tpd ten tdis From (Input) A B OE OE OE OE To (Output) B A A B A B VCCB = 1.2 0.1V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 4.2 3.5 3 4 4.3 5.3 VCCB = 1.5 0.1V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 3 3.1 3 3 4.3 4.3 VCCB = 1.8 0.15V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Typ. 2 2 2.1 2.1 3.2 3.2 Max. 2.8 2.8 3 3 4.3 4.3 VCCB = 2.5 0.2V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 2.5 2.6 3 2.8 4.3 3 ns Units
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PS8730
08/17/04
PI74AUC164245 16-Bit 1.2V to 2.7V Level Shifting Transceiver with 3-State Outputs Switching Characteristics (Over recommended operating free-air temperature range for VCCA = 2.5V0.2V (See Figure 1)
Parameter tpd ten tdis From (Input) A B OE OE OE OE To (Output) B A A B A B VCCB = 1.2 0.1V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 4 3 2.6 4 2.9 5.3 VCCB = 1.5 0.1V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 2.8 2.6 2.6 2.8 2.9 4.1 VCCB = 1.8 0.15V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Typ. 1.8 1.7 1.8 2 2 3 Max. 2.6 2.5 2.6 3.1 2.9 4.3 VCCB = 2.5 0.2V Min. 0.5 0.5 0.7 0.7 0.8 0.8 Max. 2.2 2.2 2.6 2.6 2.9 2.9 ns Units
Operating Characteristics (VCCA and VCCB = 2.5V, TA = 25C)
Parameter Cpd (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 ZMHz CL = 0 f = 10 ZMHz Test Conditions Typ. 3 0.4 14 1.5 14 1.5 3 0.4 pF Units
Cpd (VCCB)
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PS8730
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PI74AUC164245 16-Bit 1.2V to 2.7V Level Shifting Transceiver with 3-State Outputs Parameter Measurement Information
From Output Under Test CL (see note 1) VIN RL S1 2 x VCCO Open GND RL
Test tPLH/tPHL tPLZ/tPZL tPHZ/tPZH
tW
S1 Open 2X VCCO GND
VCCI Input VCCI/2 VCCI/2 0V
VCCO 0.8V 1.2V 0.1V 1.5V 0.1V 1.8V 0.15V 2.5V 0.2V
CL 15pF 15pF 15pF 20pF 20pF
RL 2k 2k 2k 1k 500
V 0.1V 0.1V 0.1V 0.15V 0.15V
VCCI
Voltage Waveforms Enable and Disable Times
Output Control (low-level enabling) Output tPZL Waveform 1 S1 at 2xVCCO (see note 2) tPZH Output Waveform 2 S1 at GND (see note 2)
VCCA VCCA/2 VCCA/2 tPLZ VCCO/2 tPHZ VCCO/2 0V VCCO
Input
VCCI/2 tPLH
VCCI/2 tPHL VCCO/2 0V VOH VOL
VOL+V VOL VOH VOH-V
Output
VCCO/2
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Notes: 1. CL includes probe and jig capacitance. 2. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. 3. All input pulses are supplied by generators having the following characteristics: PRR 10Mz, ZO = 50, Slow rate 1V/ns. 4. The outputs are measured one at a time with one transition per measurement. 5. tPLZ and tPHZ are the same as tDIS. 6. tPZL and tPZH are the same as tEN. 7. tPLH and tPHL are the same as tPD. 8. VCCI defines the input port. 9. VCCO defines the output port.
Figure 1. Load Circuit and Voltage Waveforms
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PS8730
08/17/04
PI74AUC164245 16-Bit 1.2V to 2.7V Level Shifting Transceiver with 3-State Outputs Packaging Mechanical: 48-Pin TSSOP (A)
48
.236 .244
6.0 6.2
1
.488 12.4 .496 12.6
.047 1.20 Max
SEATING PLANE
.004 0.09 .008 0.20
X.XX X.XX
DENOTES DIMENSIONS IN MILLIMETERS
.0197 BSC 0.50
.007 .010
0.17 0.27
.002 .006 0.05 0.15
0.45 .018 0.75 .030
.319 BSC 8.1
Packaging Mechanical: 48-Pin TVSOP (K)
48
.169 .177
4.30 4.50
.0035 .008
0.09 0.20
1
.378 9.60 .386 9.80
.031 .041 0.80 1.05
0.45 .018 0.75 .030
.252 BSC 6.4
SEATING PLANE
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
.016 BSC 0.40
.0051 .009 0.13 0.23
.002 .006 0.05 0.15
Max. .047 1.20
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PS8730
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PI74AUC164245 16-Bit 1.2V to 2.7V Level Shifting Transceiver with 3-State Outputs Ordering Information
Ordering Code PI74AUC164245A PI74AUC164245K Package Code A K Package Description 48-pin, 240-mil wide plastic TSSOP 48-pin, 173-mil wide plastic TVSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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PS8730 08/17/04

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