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PI74ALVC162334
16-Bit Universal Bus Driver with 3-State Outputs
Product Features
* PI74ALVC162334 is designed for low voltage operation, VCC = 2.3V to 3.6V * Outputs have equivalent 26 ohm series resistors * Supports PC100 Registered DIMM * Typical VOLP (Output Ground Bounce) < 0.8V at VCC = 3.3V, TA = 25C * Typical VOHV (Output VOH Undershoot) < 2.0V at VCC = 3.3V, TA = 25C * Industrial operation at -40C to +85C * Packages available: - 48-pin 240 mil wide plastic TSSOP (A48) - 48-pin 173 mil wide plastic TVSOP (K48) - 48-pin 300 mil wide plastic SSOP (V48)
Product Description
Pericom Semiconductor's PI74ALVC series of logic circuits are produced in the Company's advanced 0.5 micron CMOS technology, achieving industry leading speed. The 16-bit PI74ALVC162334 universal bus driver is designed for 2.3V to 3.6V Vcc operation. Data flow from A to Y is controlled by Output Enable (OE). The device operates in the transparent mode when LE is LOW. When LE is HIGH, the A data is latched if CLK is held at a high or low logic level. If LE is HIGH, the A-data is stored in the latch/flip-flop on the low-to-high transition of CLK. When OE is HIGH, the outputs are in the high-impedance state. The outputs have equivalent 26 ohm series resistors to reduce overshoot and undershoot. To ensure the high-impedance state during power up or power down, OE should be tied to Vcc through a pullup resistor; the minimum value of the resistor is determined by the currentsinking capability of the driver.
Logic Block Diagram
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Product Pin Description
Pin Name OE LE CLK A Y GND VCC Description Output Enable Input (Active LOW) Latch Enable (Active LOW) Clock Input Data Input Data Output Ground Power
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PI74ALVC162334 16-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS
Truth Table(1)
Inputs OE H L L L L LE X L L H H H CLK X X X L or H A X L H L H X Outputs Y Z L H L H Yo(2)
Product Pin Configuration
OE Y1 Y2 GND Y3 Y4 VCC Y5 Y6 GND Y7 Y8 Y9 Y10 GND Y11 Y12 VCC Y13 Y14 GND Y15 Y16 NC
CLK A1 A2 GND A3 A4 VCC A5 A6 GND
L
Note: 1 H = High Signal Level L = Low Signal Level Z = High Impedance = Transition LOW-to-HIGH X = Irrelevant 2. Output level before the indicated steady-state input conditions were established.
48-PIN A-48 K-48 V-48
A7 A8 A9 A10 GND A11 A12 VCC A13 A14 GND A15 A16 LE
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PI74ALVC162334 16-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Note: Storage Temperature .......................................................................... -65C to +150C Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied ........................................ -40C to +85C RATINGS may cause permanent damage to the device. Input Voltage Range, VIN ............................................................... -0.5V to VCC+0.5V This is a stress rating only and functional operation of the Output Voltage Range, VOUT .......................................................... -0.5V to VCC+0.5V device at these or any other conditions above those indiDC Input Voltage .................................................................................. -0.5V to +5.0V cated in the operational sections of this specification is not DC Output Current ............................................................................................. 100 mA implied. Exposure to absolute maximum rating conditions Power Dissipation ................................................................................................... 1.0W for extended periods may affect reliability.
Recommended Operating Conditions(1)
Parame te rs VCC VIH De s cription Supply Voltage Input HIGH Voltage VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V 0 0 VCC = 2.3V IOH High- level Output Current VCC = 2.7V VCC = 3.0V VCC = 2.3V IOL Low- level Output Current VCC = 2.7V VCC = 3.0V TA Operating Free- Air Temperature - 40 Te s t Conditions M in. 2.3 1.7 2.0 0.7 0.8 VCC VCC -6 -8 - 12 6 8 12 85 C mA V Typ. M ax. Units 3.6
VIL VIN VOUT
Input LOW Voltage Input Voltage Output Voltage
Note: 1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
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PI74ALVC162334 16-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS
DC Electrical Characteristics (Over the Operating Range, TA = -40C to +85C, VCC = 3.3V 10%)
Parame te rs Te s t Conditions IOH = -100 A IOH = -4 mA IOH = -6 mA IOH = IOH = IOL = IOL = VOL -8 mA 12 mA 100 A 4 mA VIH = VIH = VIH = VIH = VIH = VIL = VIL = VIL = VIL = VIL = 1 .7 V 1 .7 V 2 .0 V 2 .0 V 2.0V 0 .7 V 0 .7 V 0 .8 V 0 .8 V 0 .8 V VCC(1) Min. t o Ma x. 2 .3 V 2 .3 V 3.0V 2 .7 V 3 .0 V Min. t o Ma x. 2.3V 2.3V 3.0V 2.7V 3.0V 3 .6 V 3 .6 V 3.6V 3V t o 3.6V 3 .3 V 3.3V 3.3V 5 5 .5 7 .5 M in. VCC - 0.2 1 .9 1 .7 2.4 2 .0 2.0 0 .2 0.4 0 .5 5 0.55 0 .6 0.8 5 5 40 750 pF Typ.(2) M ax. Units
VOH
V
IOL = 6 mA
V
IOL = 8 mA IOL = 24 mA Ii VI = VCC or GND VO = VCC or GND IOZ(3) IO = 0 VI = VCC or GND ICC One input a t VCC - 0.6V Ot her input s a t VCC or , ICC GND CI Cont rol Input s VI = VCC or GND Da t a Input V = VCC or GND o V = VCC or GND o CO Out put s
A
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 3.3V, +25C ambient and maximum loading. 3. For I/O ports, the IOZ includes the input leakage current.
Timing Requirements over Operating Range
ALVC162334
Vcc = 2.5 V 0.2V Parame te rs De s cription Clock frequency LE LOW CLK high or low Data before CLK M in. 0 3.3 3.3 1.4 1.2 1.4 0.9 1.1 0 10 M a x. 15 0 Vcc = 2.7V M in. 0 3.3 3.3 1. 7 1. 6 1. 5 0.9 1. 1 0 10 M a x. 150 Vcc = 3.3V 0.3V M in. 0 3.3 ns 3.3 1.5 1.3 1.2 0.9 ns 1. 1 0 10 ns/V ns M a x. 150 Unit MHz
fclock tw Pulse Duration
tsu Setup time
Data before LE, CLK High Data before LE, CLK Low Data after CLK
th Hold time
t/v(1)
Data after LE, CLK High or Low Input Transition Rise or Fall
Note: 1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
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PI74ALVC162334 16-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS
Switching Characteristics Over Operating Range(1)
Vcc = 2.5V 0.2V Parame te r From (INPUT) A LE CLK OE OE Y To (OUTPUT) M in.(2) 150 1.0 1. 0 1. 0 1. 0 1. 0 M ax. 4.4 5.8 5.2 6.4 4.7 Vcc = 2.7V M in.(2) 150 M ax. 4.5 6.0 5.4 6.4 5.1 Vcc = 3.3 V 0.3V M in.(2) 15 0 1. 1 1. 3 1. 0 1. 1 1. 7 M ax. 3.9 5.0 4.9 5.4 5.0 ns Unit MHz
fmax tpd tpd tpd ten tdis
Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays.
Operating Characteristics, TA = 25C
Vcc = 2.5V 0.2V Typical 31 7 Vcc = 3.3V 0.3V Typical 36 11 Unit pF
Parame te rs Cpd Power Dissipation Capacitance Outputs Enabled Outputs Disabled
Te s t Conditions CL= 50pF, F = 10 MHz
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
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