型號(hào): W224BH
英文描述: CPU SYSTEM CLOCK GENERATOR|SSOP|56PIN|PLASTIC
中文描述: CPU系統(tǒng)時(shí)鐘發(fā)生器| SSOP封裝| 56PIN |塑料
文件頁(yè)數(shù): 5/17頁(yè)
文件大小: 349K
代理商: W224BH
W224B
5
Table 4. 100 MHz Group Timing Relationships and Tolerances
Power-Down Control
CPU to
SDRAM
5.0 ns
500 ps
CPU to
3V66
5.0ns
500 ps
SDRAM to
3V66
0.0 ns
500 ps
3V66 to PCI
1.5–3.5 ns
500 ps
PCI to APIC
0.0 ns
1.0 ns
USB & DOT
Async
N/A
Offset
Tolerance
Figure 3. Group Offset Waveforms (133-MHz CPU/100-MHz SDRAM Clock)
0 ns
40 ns
30 ns
20 ns
10 ns
CPU 133-MHz
SDRAM 100-MHz
3V66 66-MHz
PCI 33-MHz
REF 14.318-MHz
USB 48-MHz
DOT 48-MHz
Cycle Repeats
APIC33-MHz
Table 5. 133 MHz/SDRAM 100 MHz Group Timing Relationships and Tolerances
CPU to
SDRAM
0.0 ns
500 ps
CPU to 3V66
0.0 ns
500 ps
SDRAM to
3V66
0.0 ns
500 ps
3V66 to PCI
1.5–3.5 ns
500 ps
PCI to APIC
0.0 ns
1.0 ns
USB & DOT
Async
N/A
Offset
Tolerance
Figure 4. Group Offset Waveforms (133-MHz CPU/133-MHz SDRAM Clock)
0 ns
40 ns
30 ns
20 ns
10 ns
CPU 133-MHz
SDRAM 133-MHz
3V66 66-MHz
PCI 33-MHz
REF 14.318-MHz
USB 48-MHz
DOT 48-MHz
Cycle Repeats
APIC33-MHz
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