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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVTC16245
16-Bit BiDirectional Transceiver with 3-State Outputs
Features
* PI74ALVTC family is designed for low voltage operation, VDD = 1.8V to 3.6V * Supports Live Insertion * 3.6V I/O Tolerant Inputs and Outputs * Bus Hold * High Drive, -32/64mA @ 3.3V * Uses patented noise reduction circuitry * Power-off high impedance inputs and outputs * Industrial operation at -40C to +85C * Packaging (Pb-free & Green available): - 48-pin 240- mil wide plastic TSSOP (A) - 48-pin 173-mil wide plastic TVSOP (K) - 48-pin 300-mil wide plastic SSOP (V)
Description
Pericom Semiconductor's PI74ALVTC16245 is a 16-bit bidirectional transceiver designed for asynchronous two-way communication between data buses. The direction control input pin (xDIR) determines the direction of data flow through the bidirectional transceiver. The Direction and Output Enable controls are designed to operate this device as either two independent 8-bit transceivers or one 16-bit transceiver. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in Hi-Z condition. To ensure the high-impedance state during power up or power down, OE should be tied to Vdd through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The family offers both I/O Tolerant, which allows it to operate in mixed 1.8/3.6V systems, and "Bus Hold," which retains the data input's last state whenever the data input goes to high-impedance, preventing "floating" inputs and eliminating the need for pullup/ down resistors.
Block Diagram
1DIR 1OE 1A0 1B0 1A1 1B1 1A2 1B2 1A3 1B3 1A4 1B4
1A5 2A6 2A5 2 A4 2A3 2A1
2DIR
2OE
2A0
2B0
2B1
2B2
2B3
2B4
1B5 1A6 1B6 1A7 1B7
2A8 2A7
2B5
2B6
2B7
1
PS8354B
09/22/04
PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
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Product Pin Description
Pin Name xOE xDIR
XAX XBX
Truth Table(1)
Inputs (1) xOE L L H xDIR L H X Outputs (1) Bus B Data to Bus A Bus A Data to Bus B High Z State
De s cription 3- State Output Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3- State Inputs Side B Inputs or 3- State Outputs Ground Power
GND VCC
Product Pin Configuration
Notes: 1. H = High Signal Level L = Low Signal Level X = Don't Care or Irrelevant Z = High Impedance
1DIR 1B0 1B1
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
1OE 1A0 1A1
GND
1B2 1B3
GND
1A2 1A3
VCC
1B4 1B5
VCC
1A4 1A5
GND
1B6 1B7 2B0 2B1
48-Pin A, K, V
39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
GND
1A6 1A7 2A0 2A1
GND
2B2 2B3
GND
2A2 2A3
VCC
2B4 2B5
VCC
2A4 2A5
GND
2B6 2B7 2DIR
GND
2A6 2A7 2OE
2
PS8354B
09/22/04
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PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Supply Voltage Range, VDD.......................................... -0.5V to 4.6V Input Voltage Range, VI ................................................. -0.5V to 4.6V Output Voltage Range, VO (3-Stated) ............................ -0.5V to 4.6V Output Voltage Range, VO(1) (Active) ................. -0.5V to VDD +0.5V DC Input Diode Current (IIK) VI<0V ........................................ -50mA DC Output Diode Current (IOK) VO<0V ................................................................................... -50mA VO>VDD ................................................................................ +50mA DC Output Source/Sink Current (IOH/IOL) ......................... -64/128mA DC VDD or GND Current per Supply Pin (ICC or GND) ....... 100mA Storage Temperature Range, Tstg ........................... -65C to150C 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.
Recommended Operating Conditions2
M in. VDD VIH VIL VI VO Supply voltage High- level input voltage Low- level input voltage Input voltage Output voltage Active State Off State VDD = 3.0V to 3.6V VDD = 2.7V to 3.0V VDD = 2.3V to 2.7V VDD = 1.8V 0 - 40 Operating Data Retention Only VDD = 2.7V to 3.6V VDD = 2.7V to 3.6V - 0.3 0 0 1. 8 1. 2 2.0 0.8 3.6 VDD 3.6 - 32/64 24 18 6 10 85 V M a x. 3.6 3.6 Units
IO t/v TA
Output current in IOH/IOL Input transistion rise or fall rate(3) Operating free- air temperture
mA
ns/V C
Notes 1. Absolute maximum of IO must be observed. 2. Unused control inputs must be held HIGH or LOW to prevent them from floating. 3 As measured between 0.8V and 2.0V, VDD = 3.0V.
3
PS8354B
09/22/04
PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
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Electrical Characteristics over Recommended Operating Free-Air Temperature Range
(unless otherwise noted)
DC Characteristics (2.7VParame te r VIH VIL HIGH Level Input Voltage LOW Level Input Voltage IOH = -100A IOH = -12mA VOH HIGH Level Output Voltage IOH = -18mA IOH = -24mA IOH = -32mA IOL = 100A IOL = 12mA VOL LOW Level Output Voltage IOL = 18mA IOL = 24mA IOL = 32mA IOL = 64mA II IOZ IOFF IODL IODH IHOLD Input Leakage Current 3- STATE Output Leakage Power- OFF Leakage Current Output Current Low Output Current High Bus Hold Current A or B Outputs VI = VDD, or GND VO = 3.6V VI or VO 3.6V VIN = VIH or VIL, Vo = 1.5V(1) VIN = VIH or VIL, Vo = 1.5V(1) VI = 0.8V VI = 2.0V VI = 0 to 3.6V IDD IDD Quiescent Supply Current Increase in IDD per input VI = VDD or GND VDD (VI,VO) 3.6V VIH = VDD - 0.6V, Other inputs at VDD or Gnd 2.7 - 3.6 3.6 2.7 0 3.6 150 - 58 75 - 75 500 50 50 400 A 3.0 2.7 - 3.6 2.7 3.0 2.7 2.7 - 3.6 VDD - 0.2 2.2 2.4 2.2 2.0 0.2 0.4 0.4 0.45 0.5 0.55 5.0 10 10 334 - 114 mA A V Conditions VDD M in. 2.0 0.8 Typ. M ax. Units
3.0 3.6
Notes 1. Duration of test must not exceed 1 second with only 1 output tested at a time.
4
PS8354B
09/22/04
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PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
Electrical Characteristics over Recommended Operating Free-Air Temperature Range
(unless otherwise noted)
DC Characteristics (2.3VVDD 2.7V)
De s cription VIH VIL Parame te rs HIGH Level Input Voltage LOW Level Input Voltage IOH = - 100A VOH HIGH Level Output Voltage IOH = - 12mA IOH = - 18mA IOL = 100A VOL LOW Level Output Voltage IOL = 12mA IOL = 18mA IOL = 24mA II IOZ IOFF IODL IODH IHOLD(1) Input Leakage Current 3- STATE Output Leakage Power- OFF Leakage Current Output Current Low Output Current High Bus Hold Current A or B Outputs Quiescent Supply Current Increase in IDD per input V1 = VDD or GND VO = 3.6V VI or VO 3.6V VIN = VIH or VIL, VO = 1.5V(2) 2.7 2.3 0 2.7 110 - 30 90 - 90 40 2.3 - 2.7 40 400 A 2.3 2.3 - 2.7 VDD - 0.2 2.3 2.3 - 2.7 1.8 1.7 0.2 0.4 0.5 0.55 5.0 10 10 264 - 60 mA A V Conditions VDD M in. 1.6 0.7 Typ. M ax. Units
VIN = VIH or VIL, VO = 1.5V(2) VI = 0.7V VI = 1.7V VI = VDD or GND VDD (VI,VO) 3.6V VIH = VDD - 0.6V, Inputs at VDD or Gnd
2.5
IDD DD
Notes: 1. Not Guaranteed 2. Duration of test must not exceed 1 second with only 1 output tested at a time.
5
PS8354B
09/22/04
PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
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Electrical Characteristics over Recommended Operating Free-Air Temperature Range
(unless otherwise noted)
DC Characteristics (1.8VVDD 2.3V)
De s cription VIH VIL VOH Parame te rs HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage IOH = - 100A IOH = - 6mA IOL = 100A IOL = 6mA V1 = VDD or GND VO = 3.6V VI = VO 3.6V VIN = VIH or VIL, VO = 0.9V(2) VIN = VIH or VIL, VO = 0.9V(2) VI = 0.4 VI = 1.3 VI = VDD or GND VDD (VI,VO) 3.6V VI = VDD - 06V, Other inputs at VDD or Gnd 1.8 2.3 1. 8 0 1.8 50 - 14 50 - 50 20 20 400 A 1.8 Conditions VDD 1.8 - 2.3 M in. 0.7 x VDD 0.2 x VDD VDD - 0.2 1.4 0.2 0.3 5.0 10 10 137 - 34 mA A V Typ. M ax. Units
VOL II IOZ IOFF IODL IODH IHOLD(1)
LOW Level Output Voltage Input Leakage Current 3- State Output Leakage Power- OFF Leakage Current Output Current Low Output Current High Bus Hold Current A or B Outputs Quiescent Supply Current Increase in IDD per input
IDD DD
Notes: 1. Not guaranteed 2. Duration of test must not exceed one second with only one output tested at a time.
6
PS8354B
09/22/04
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PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
AC Electrical Characteristics
TA = -40C to +85C, CL = 50pF, RL = 500 Symbol Parame te r VD D = 3.3V 0.3V M in. tP HL, tP LH tP ZL, tP ZH tP LZ, tP HZ tO S HL, tO S LH Prop Delay Output Enable Time Output Disable Time Output to Output Skew(1) 0.5 1.0 1.5 M a x. 2.4 2.9 3.7 0.5 VD D = 2.5V 0.2V M in. 0.5 1.0 1.0 M a x. 2.8 3.5 4.0 0.5 VD D = 1.8V M in. 1. 0 1.5 1. 5 M a x. 3.6 4.5 4.8 0.5 ns Units
Note 1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH or LOW (tOSHL) or LOW to HIGH (tOSLH).
Capacitance
Symbol CIN COUT C PD Parame te r Input Capacitance Output Capacitance Power Dissipation Capacitance Conditions VDD = 1.8, 2.5V or 3.3V, VI = 0V or VDD VI = 0V or VDD, VDD = 1.8V, 2.5V or 3.3V VI = 0V or VDD, F = 10 MHz VDD = 1.8V, 2.5V or 3.3V TA = +25C Typical 6 7 20 pF Units
7
PS8354B
09/22/04
PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Test Circuits and Switching Waveforms
Parameter Measurement Information (VDD = 1.8V - 3.6V)
Switch Position
Te s t S1 Open 2 x VDD GND
tpd tPLZ/tPZL
tPHZ/tPZH
Pulse Width
VDD Low-High-Low Pulse tW VDD VDD/2 0V
Setup, Hold, and Release Timing
Data Input tSU Timing Input tH VDD VDD/2 0V VDD VDD/2 0V
High-Low-High Pulse
VDD/2 0V
Propagation Delay
VDD VDD/2 Input tPLH Output tPHL tPLH VDD Opposite Phase Input Transition VDD/2 0V tPHL 0V VDD VDD/2 VOL
Notes: A. CL includes probe and jig capacitance. B. 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. C. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50, tr 2ns, tf 2ns, measured from 10% to 90%, unless otherwise specified. D. The outputs are measured one at a time with one transition per measurement.
Enable Disable Timing
VDD Output Control
(Active LOW)
VDD/2 tPZL VDD VDD/2 +0.15V tPZH VDD/2 0V tPHZ -0.15V VOH VOL tPLZ 0V VDD
Output Waveform 1 S1 at 2xVDD
(see Note B)
Output Waveform 2 S1 at GND
(see Note B)
8
PS8354B
09/22/04
Packaging Mechanical: 48-pin SSOP(V)
48
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.291 .299 7.39 7.59 .395 .420 10.03 10.67 Gauge Plane .010 0.25 1 .620 .630 15.75 16.00 .02 0.51 .04 1.01 .008 0.20 Nom. .015 0.381 x 45 .025 0.635 .110 2.79 Max .025 BSC 0.635 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS .008 0.20 .0135 0.34 0-8 .008 0.20 .016 0.40
PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
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
9
PS8354B
09/22/04
PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
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 0.45 .018 0.75 .030 .319 BSC 8.1
X.XX X.XX
DENOTES DIMENSIONS IN MILLIMETERS
.0197 BSC 0.50
.007 .010 0.17 0.27
.002 .006 0.05 0.15
Ordering Information
Ordering Code PI74ALVTC16245A PI74ALVTC16245AE PI74ALVTC16245V PI74ALVTC16245VE PI74ALVTC16245K PI74ALVTC16245KE Package Code A A V V K K Package Type 48-pin 240-mil wide TSSOP Pb-free & Green, 48-pin 240-mil wide TSSOP 48-pin 300-mil wide SSOP Pb-free & Green, 48-pin 300-mil wide SSOP 48-pin 173-mil wide TVSOP Pb-free & Green, 48-pin 173-mil wide 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
10
PS8354B 09/22/04

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