pi6c410b Pericom Semiconductor Corporation, pi6c410b Datasheet - Page 10

• Manufacturer Part Number: pi6c410b
• Description: 400mhz Clock Generator For Server/workstation
• Manufacturer: Pericom Semiconductor Corporation

Tristate Specifi cations
CPU & SRC Tristate clock truth table
Spread Spectrum Specifi cations
Supports Spread Spectrum clocking and can be enabled and disabled via SMBus control. The maximum Spread Spectrum Modula-
tion is –0.5% down spread with frequency from 30KHz to 33K Hz.
Crystal Recommendations
Notes:
1.
CPU @ 399.000MHz
CPU @ 332.500MHz
CPU @ 266.000MHz
CPU @ 199.500MHz
CPU @ 166.250MHz
CPU @ 133.000MHz
CPU @ 99.750MHz
SRC @ 99.750MHz
PCIF / PCI @
33.250MHz
14.31818 MHz
Frequency
External trim capacitors (Ce) are required by using this formula Ce = 2*C
capacitance (Cs) = 2.8pF and XTAL pins capacitance = 4.5pF.
CPU[0:3],
SRC[0:4],
Signal
07-0093
SSC ON
Cut
AT
Pwrdwn pin
Loading
Parallel
29.9910
2.4993
2.9991
3.7489
4.9985
5.9982
7.4978
9.9970
9.9970
Min
0
1
1
Tperiod
Load
20pF
Cap
10.0533
10.0533
30.1598
2.5133
3.0160
3.7700
5.0266
6.0320
7.5400
Max
Pwrdwn Tristate Bit
0.1mW
Drive
Max.
CPU @ 400.000MHz
CPU @ 333.333MHz
CPU @ 266.666MHz
CPU @ 200.000MHz
CPU @ 166.666MHz
CPU @ 133.333MHz
CPU @ 100.000MHz
SRC @ 100.000MHz
PCIF / PCI @
33.333MHz
Clock Generator for Intel PCI-Express Server Chipset
X
0
1
10
Cap Max.
Shunt
SSC OFF
5pF
L
– (Cs + Ci). Typical Ce = 33pF when Crystal Load = 20pF, Trace
Cap Max.
Motional
0.016pF
Driven @ Iref x 2
Stoppable
Outputs
Running
Tristate
29.9910
2.4993
2.9991
3.7489
4.9985
5.9982
7.4978
9.9970
9.9970
Tolerance
Min
50ppm
Max.
Tperiod
Stability
10.0030
10.0030
30.0090
50ppm
Driven @ Iref x 2
2.5008
3.0009
3.7511
5.0015
6.0018
7.5023
Max.
Max
Non-stop
Outputs
Running
Tristate
PS8811A
PI6C410B
Aging
5ppm
Max.
Unit
ns
04/19/07