PRELIMINARY
C9851
Clock Generator for Pentium III Server and Workstation Applications
Maximum Ratings
This device contains circuitry to protect the inputs
against damage due to high static voltages or electric
field; however, precautions should be taken to avoid
application of any voltage higher than the maximum
rated voltages to this circuit. For proper operation, Vin
and Vout should be constrained to the range:
VSS<(Vin or Vout)<VDD
Maximum Input Voltage Relative to VSS: VSS - 0.5V
Maximum Input Voltage Relative to VSS: VDD + 0.7V
Storage Temperature:
Operating Temperature:
Maximum ESD protection
Maximum Power Supply:
-65ºC to + 150ºC
0ºC to +70ºC
2000V
5.5V
Unused inputs must always be tied to an appropriate
logic voltage level (either VSS or VDD).
DC Parameters (VDDI = VDD = VDDR = VDDL = VDDM = VDDC = 3.3V ±5%, TA = 0°C to +70°C)
Characteristic
Symbol Min
Typ
Max
Units
Vdc
Vdc
µA
Conditions
Input Low Voltage
Input High Voltage
VIL1
-
-
-
0.8
Note 1
VIH1
IIL
2.0
-16
-
Input Low Current (@Vin =
VSS)
-4
For internal Pull up resistors, Note 1
and Note 2
Input High Current (@Vin =
VDD)
IIH
IIL
IIH
0
0
4
5
-
µA
µA
µA
-
Input Low Current (@Vin =
VSS)
For internal Pull down resistors, Note
1 and Note 2
Input High Current (@Vin =
VDD)
16
Tri-State leakage Current
Static Supply Current
Dynamic Supply Current
Input pin capacitance
Output pin capacitance
Pin Inductance
Ioz
Idd
-
-
-
-
10
30
200
5
µA
mA
mA
pF
PwrDwn=Low
Isdd
Cin
-
-
133 MHz CPU, Note 3
-
-
Cout
Lpin
Cxtal
-
-
6
pF
-
-
7
nH
pF
Crystal pin capacitance
34
36
38
Measured from Pin to Ground. See
crystal specification section presented
later in this data sheet.
Crystal Startup time
Txs
Rpi
-
-
40
From Stable 3.3V power supply.
µS
Internal Pull-up and Pull-
down resistor value
200
250
500
KΩ
Note1: Applicable to input signals: Sel100/133, Sel(A:B)), Spread#, PWRDN#, MultSel(0:1)
Note2: Although internal pull-up or Pull-Down resistors have a typical value of 250K, this value may vary between 200K and 500K.
Note3: All outputs loaded as per the maximum capacitive table in this data sheet.
Cypress Semiconductor Corporation
525 Los Coches St.
Document#: 38-07068 Rev. **
05/04/2001
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
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