932SQ420DGLFT datasheet(10/27 Pages) IDT

Nome de Peças	932SQ420DGLFT

Descrição Electrónicos	PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS

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Fabricante Electrônico	IDT [Integrated Device Technology]

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932SQ420D

PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS

IDT®

PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS

10

932SQ420D

REV H 042012

Electrical Characteristics - Input/Supply/Common Parameters

TA = TCOM; Supply Voltage VDD = 3.3 V +/-5%

PARAMETER

SYMBOL

C OND ITIONS

MIN

TYP

MAX

UNITS

NOTES

Ambient Operating

Temperature

T

COM

Commmercial range

0

70

°C

1

Input High Voltage

V

IH

Single-ended inputs, except

SMBus, low threshold and tri-

level inputs

2

V

DD + 0 .3

V1

Input Low Voltage

V

IL

Single-ended inputs, except

SMBus, low threshold and tri-

level inputs

GND - 0.3

0.8

V

1

I

IN

Single-ended inputs,

V

IN = GND, VIN = V DD

-5

5

uA

1

I

INP

Single-ended inputs.

VIN = 0 V; Inputs with internal pull-

up resistors

V

IN = VDD ; Inpu ts w ith intern al

pull-dow n resistors

-200

200

uA

1

Low Threshold Input-

High Voltage

VIH_FS

3.3 V +/-5%

0.7

VDD + 0.3

V

1

Low Threshold Input-

Low Voltage

V

IL_F S

3.3 V +/-5%

V

SS - 0. 3

0.35

V

1

Input Frequency

F

i

25.00

MHz

2

Pin Inductance

L

p in

7nH

1

CIN

Logic Inputs

5

pF

1

C

OU T

Output pin capacitance

5

pF

1

C

IN X

X1 & X2 pins

5

pF

1

Clk Stabilization

T

ST AB

From VDD Power-Up and after

input clock stabilization or de-

assertion of PD# to 1st clock

1.8

ms

1,2

SS Modulation Frequency

fMODIN

Allowable Frequency

(Triangular Modulation)

30

31.500

33

kHz

1

Tdrive_PD#

tDRVPD

Differential output enable after

PD# de-assertion

200.000

300

us

1,3

Tfall

tF

Fall time of control inputs

5

ns

1,2

Trise

t

R

Rise time of control inputs

5

ns

1,2

SMBus Input Low Voltage

V

ILSMB

0.8

V

1

SMBus Input

High Voltage

VIHSMB

2.1

VDDSM B

V1

SMBus Output

Low Voltage

VOLSMB

@ IPUL LUP

0.4

V

1

SMBus Sink Current

IPULLUP

@ VOL

4mA

1

N ominal Bus Voltage

V

DDSM B

3V to 5V +/- 10%

2.7

5.5

V

1

SC LK/SDATA Rise Time

t

RSMB

(Max VIL - 0.15) to (Min VIH +

0.15)

1000

ns

1

SCLK/SDATA Fall Time

t

FSMB

(Min VIH + 0.15) to (Max VIL -

0.15)

300

ns

1

SMBus Operating

Frequency

f

MAXSMB

Maximum SMBus operating

frequency

100

kHz

1

1Guaranteed by design and characterization, not 100% tested in production.

2Control input must be monotonic from 20% to 80% of input swing.

3Time from deassertion until outputs are >200 mV

Input Current

C apacitance

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