932SQ420D
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
Electrical Characteristics - Input/Supply/Common Parameters
TA = TCOM; Supply Voltage VDD = 3.3 V +/-5%
PARAMETER
Ambient Operating
Temperature
SYMBOL
TCOM
CONDITIONS
MIN
0
TYP
MAX
70
UNITS NOTES
Commmercial range
°C
1
Single-ended inputs, except
VIH
VIL
VDD + 0.3
0.8
Input High Voltage
Input Low Voltage
SMBus, low threshold and tri-
level inputs
Single-ended inputs, except
SMBus, low threshold and tri-
level inputs
2
V
1
GND - 0.3
V
1
1
Single-ended inputs,
VIN = GND, VIN = VDD
IIN
-5
5
uA
Single-ended inputs.
IN = 0 V; Inputs with internal pull-
Input Current
V
IINP
up resistors
VIN = VDD; Inputs with internal
-200
0.7
200
uA
1
pull-down resistors
Low Threshold Input-
High Voltage
Low Threshold Input-
VIH_FS
VIL_FS
3.3 V +/-5%
VDD + 0.3
0.35
V
V
1
1
V
SS - 0.3
3.3 V +/-5%
Low Voltage
Input Frequency
Pin Inductance
Fi
Lpin
25.00
MHz
nH
2
1
1
1
7
5
5
CIN
COUT
Logic Inputs
pF
Output pin capacitance
pF
Capacitance
CINX
X1 & X2 pins
5
pF
1
From VDD Power-Up and after
input clock stabilization or de-
TSTAB
Clk Stabilization
1.8
ms
1,2
assertion of PD# to 1st clock
Allowable Frequency
(Triangular Modulation)
Differential output enable after
fM ODIN
tDRVPD
SS Modulation Frequency
Tdrive_PD#
30
31.500
33
kHz
us
1
200.000
300
1,3
PD# de-assertion
Tfall
tF
tR
Fall time of control inputs
5
5
ns
ns
1,2
1,2
Trise
Rise time of control inputs
VILSMB
VIHSMB
VOLSMB
SMBus Input Low Voltage
SMBus Input
High Voltage
SMBus Output
Low Voltage
SMBus Sink Current
0.8
V
V
V
1
1
1
VDDSM B
2.1
@ IPULLUP
@ VOL
0.4
IPULLUP
VDDSM B
4
mA
V
1
1
Nominal Bus Voltage
3V to 5V +/- 10%
2.7
5.5
(Max VIL - 0.15) to (Min VIH +
tRSMB
tFSMB
SCLK/SDATA Rise Time
1000
ns
ns
1
1
1
0.15)
(Min VIH + 0.15) to (Max VIL -
SCLK/SDATA Fall Time
300
100
0.15)
Maximum SMBus operating
frequency
SMBus Operating
Frequency
fMAXSMB
kHz
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
IDT® PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
10
932SQ420D
REV H 042012
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
