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SC660E Datasheet, PDF (4/5 Pages) Cypress Semiconductor – SMBus System Clock Buffer for Mobile Applications
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SC660E
Electrical Characteristics
Parameter
Description
VIL Input Low Voltage
VIH Input High Voltage
IIL Input Low Current
Min.
-
2.0
-66
Typ.
-
-
-
Max.
0.8
-
-
Units
Vdc
Vdc
µA
Conditions
-
-
IIH Input High Current
-
-
66
µA
VOL
VOH
Ioz
Idd66
Idd100
Isdd
ISC
TIR
Output Low Voltage
IOL = 40mA
-
-
0.4
Vdc All Outputs (see buffer spec)
Output High Voltage
IOH = 30mA
2.4
-
-
Vdc All Outputs Using 3.3V Power
(see buffer spec)
Tri-State leakage Current
-
-
10
µA
Dynamic Supply Current
-
-
160
mA Input frequency = 66 Mhz - All outputs on
and at 30 pF load
-
-
220
mA Input frequency 100 Mhz - All outputs on
and at 30 pF load
Static Supply Current
-
-
4
mA All outputs disabled no input clock
Short Circuit Current
25
-
-
mA 1 output at a time - 30 seconds
Input Rise Time
2.4
-
-
nS .8 to 2.4 volts
VDD = VDD1 thru VDD5 =3.3V r5%, , TA = -40ºC to +85ºC
Switching Characteristics
Parameter
Description
Min. Typ. Max. Units
Conditions
Output Duty Cycle
45
50
55
% Measured at 1.5V (50/50 in)
-
Buffer out/out Skew All Buffer
-
-
250
pS 35 pF Load Measured at 1.5V
Outputs
tSKEW Buffer input to output Skew
2.0
4.0
5.0
nS
tSKEW Jitter Cycle to Cycle [2]
50
pS @ 35 pF loading
TJCC
Jitter Absolute (Peak to Peak)[2]
150
pS @ 35 pF loading
VDD = VDD1 thru VDD5 =3.3V r5%, , TA = -40ºC to +85ºC
TB40_ Type Buffer Characteristics (All Clock Outputs)
Parameter
Description
Min. Typ. Max. Units
Conditions
IOHmin Pull-Up Current Min
30
-
39
mA Vout = VDD - .5V
IOHmax Pull-Up Current Max
75
-
109
mA Vout = 1.5V
IOLmin
Pull-Down Current Min
30
-
40
mA Vout = 0.4
IOLmax Pull-Down Current Max
75
-
103
mA Vout = 1.2V
Zo
Dynamic Output Impedance
8
-
15 Ohms 66 and 100 MHz
TRFmin
Rise/Fall Time Min
Between 0.4 V and 2.4 V
-
-
1.33
nS 30 pF Load
TRFmax Rise/Fall Time Max
Between 0.4 V and 2.4 V
-
-
1.33
nS 30 pF Load
VDD = VDD1 thru VDD5 =3.3V r5%, , TA = -40ºC to +85ºC
Note:
2. This jitter is additive to the input clock’s jitter.
Rev 1.0, December 06, 2006
Page 4 of 5
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