參數(shù)資料
型號: IBM32NPR100EXXCAB133
英文描述: Microprocessor
中文描述: 微處理器
文件頁數(shù): 127/131頁
文件大?。?/td> 1679K
代理商: IBM32NPR100EXXCAB133
PRS28.4G
IBM Packet Routing Switch
prs28.03.fm
August 31, 2000
Electrical Characteristics
Page 127 of 131
Table 35: Electrical Characteristics for DASL I/Os
Parameter
Ref Signal
Min
Typ
Max
Units
Notes
Rising Transition Rate of the Output
DASL Driver
0.14
0.21
0.38
ns
1
Falling Transition Rate of the Output
DASL Driver
0.19
0.28
0.33
ns
Max Input Pin Cap
DASL Receiver
2.5
pF
1. The DASL I/Os are compatible with high speed transceiver logic (HSTL) differential interface standard defined in EIA/JEDEC Stan-
dard High Speed Transceiver Logic (HSTL) A 1.5V output Buffer Supply Voltage Based Interface Standard for Digital Integrated
Circuits EIA/JESD8-6 August 1995 [3]
Table 36: Clocks
Parameter
Min
Max
Units
Notes
Internal Clock Frequency
100
111.1
MHz
SYS_CLOCK
Internal PLL
50
55.5
1, 3
External PLL
25
27.75
1, 2, 3
1. The SYS_CLK input must have a tolerance of
±100
ppm
(0.01%),
a duty cycle of 40 - 60% and a phase jitter:
±
150 ps (cycle to
cycle) maximum.
2. When an external PLL is used, the duty cycle has to be 50%.
3. The skew between Master and Slave SYS_CLK is
±
250 ps maximum.
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