參數(shù)資料
型號(hào): C9835CY
廠(chǎng)商: Cypress Semiconductor Corp.
英文描述: Low-EMI Clock Generator for Intel Mobile 133-MHz/3 SO-DIMM Chipset Systems
中文描述: 低電磁干擾時(shí)鐘發(fā)生器英特爾移動(dòng)133兆赫/ 3的SO - DIMM芯片系統(tǒng)
文件頁(yè)數(shù): 6/18頁(yè)
文件大?。?/td> 343K
代理商: C9835CY
C9835
Document #: 38-07303 Rev. **
Page 6 of 18
Clock Phase
Table 4. Group Timing Relationships and Tolerances
CPU = 66.6 MHz, SDRAM = 100 MHz
Tolerance (ps)
500
500
500
500
1000
N/A
CPU = 100 MHz, SDRAM = 100 MHz
Tolerance (ps)
500
500
500
500
1000
N/A
CPU = 133.3 MHz, SDRAM = 100 MHz
Tolerance(ps)
500
500
500
500
1000
N/A
Offset (ns)
2.5
7.5
0
1.5
3.5
0
Async
Conditions
CPU to SDRAM/DCLK
CPU to 3V66
SDRAM/DCLK to 3V66
3V66 to PCI
PCI to IOAPIC
48M (0,1)
180 degrees phase shift
When rising edges line up
3V66 leads
Offset (ns)
5
5
0
1.5
3.5
0
Async
Conditions
CPU to SDRAM/DCLK
CPU to 3V66
SDRAM/DCLK to 3V66
3V66 to PCI
PCI to IOAPIC
48M (0,1)
180 degrees phase shift
CPU leads
When rising edges line up
3V66 leads
Offset(ns)
0
0
0
1.5
3.5
0
Async
Conditions
CPU to SDRAM/DCLK
CPU to 3V66
SDRAM/DCLK to 3V66
3V66 to PCI
PCI to IOAPIC
48M (0,1)
When rising edges line up
When rising edges line up
3V66 leads
0ns
10ns
20ns
30ns
40ns
66MHz
100MHz
133MHz
CPU CLOCK
DCLK/SDRAM CLOCK
3V66 CLOCK
PCI CLOCK
100MHz
66MHz
33MHz
CPU CLOCK
CPU CLOCK
1.5ns~3.5
Sync
7.5ns
5ns
5ns
2.5ns
IOAPIC CLOCK
33MHz
DCLK/SDRAM CLOCK 133MHz
0ns
0nS
0ns
3.75ns
3.75ns
0ns
Figure 4.
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