參數(shù)資料
型號(hào): W229B
英文描述: Clocks and Buffers
中文描述: 時(shí)鐘和緩沖器
文件頁(yè)數(shù): 14/17頁(yè)
文件大小: 183K
代理商: W229B
W229B
Document #: 38-07223 Rev. *A
Page 14 of 17
Intel is a registered trademark of Intel Corporation.
Group Skew and Jitter Limits
Output Group
CPU
SDRAM
APIC
48MHz
3V66
PCI
REF
Pin-Pin Skew Max.
175 ps
250 ps
250 ps
250 ps
175 ps
500 ps
N/A
Cycle-Cycle Jitter
250 ps
250 ps
500 ps
500 ps
500 ps
500 ps
1000 ps
Duty Cycle
45/55
45/55
45/55
45/55
45/55
45/55
45/55
Nom V
DD
2.5V
3.3V
2.5V
3.3V
3.3V
3.3V
3.3V
Skew, Jitter
Measure Point
1.25V
1.5V
1.25V
1.5V
1.5V
1.5V
1.5V
Clock Output Wave
2.5V Clocking
Interface
3.3V Clocking
Interface
Test Point
Test Load
T
PERIOD
Duty Cycle
T
HIGH
2.0
1.25
0.4
T
LOW
T
RISE
T
FALL
T
LOW
T
RISE
T
FALL
T
PERIOD
Duty Cycle
T
HIGH
2.4
1.5
0.4
Output
Buffer
Figure 10. Output Buffer.
Ordering Information
Ordering Code
Package Name
H
Package Type
W229B
56-pin SSOP (300 mils)
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