C9630 Datasheet, PDF (11/18 Pages) Cypress Semiconductor – PC133 Clock Generator for SiS630/Pentium III & SiS540/Socket7 Applications

APPROVED PRODUCT
C9630
PC133 Clock Generator for SiS630/Pentium^®III & SiS540/Socket7 Applications
Spread Spectrum Clock Generation (SSCG) (Cont.)
In Center Spread mode, the Center frequency remains the same as in the non-spread mode.
Down Spread
Center Spread
Fig.8A
Spread Spectrum Selection Table
SSTS MBS 1 MBS 0
Spread%
0
0
0
- 0.5
0
0
1
+/- 0.125
0
1
0
+/- 0.5
0
1
1
+/- 0.25
1
0
0
-0.5
1
0
1
+/- 0.125
1
1
0
+/- 0.5
1
1
1
See table 3, (default)
Table 4
Maximum Ratings
Maximum Input Voltage Relative to VSS: VSS - 0.3V
Maximum Input Voltage Relative to VDD: VDD + 0.3V
Storage Temperature:
-65ºC to + 150ºC
Operating Temperature:
0ºC to +70ºC
Maximum ESD protection
Maximum Power Supply:
2KV
5.5V
Fig.8B
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
Unused inputs must always be tied to an appropriate
logic voltage level (either VSS or VDD).
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: [phone], Fax: [phone]
http://www.cypress.com
Document#: 38-07035 Rev. **
05/02/2001
Page 11 of 18