參數(shù)資料
型號(hào): AM79C850KC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: SUPERNET-R 3
中文描述: 1 CHANNEL(S), 100M bps, FDDI CONTROLLER, PQFP208
封裝: PLASTIC, QFP-208
文件頁(yè)數(shù): 87/97頁(yè)
文件大?。?/td> 358K
代理商: AM79C850KC
P R E L I M I N A R Y
AMD
87
SUPERNET 3
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
Host Interface & Buffer Memory
Parameter
Symbol
No.
Parameter Description
Min
Max
Unit
76
t
S
HSREQ2–0 Setup Time to BMCLK High
15
ns
77
t
H
HSREQ2–0 Hold Time to BMCLK High
5
ns
78
t
PD
BMCLK High to HSACK High
25
ns
79
t
PD
BMCLK High to HSACK Low
25
ns
80
t
PD
BMCLK High to RDATA High
25
ns
81
t
PD
BMCLK High to RDATA Low
25
ns
82
t
PD
BMCLK High to QCNTRL2–0 Valid
25
ns
83
t
PD
QCNTRL2–0 Invalid from BMCLK High
5
ns
84
t
PD
BMCLK High to ADDR 15–0 Enabled
0
ns
85
t
PD
BMCLK High to ADDR 15–0 Valid
27
ns
86
t
PD
BMCLK High to
CSO
Low
26
ns
87
t
PD
BMCLK Low to
RD
Low
22
ns
88
t
S
BD 31:0, BDP 3:0, BDTAG Setup Time to
RD
High
10
ns
89
90
t
H
BD 31:0, BDP 3:0, BDTAG Hold Time from
RD
High
Reserved
0
ns
ns
91
t
PD
CSO
Invalid from
RD
or
WR
High
0
ns
92
t
PD
ADDR 15:0 Invalid from
RD
or
WR
High
4
ns
93
t
PD
BMCLK Low to
WR
Low
18
ns
94
t
S
ADDR 15:0 Valid to
WR
Low Setup Time
0
ns
95
t
PD
BMCLK Low to BD 31:0, BDP 3:0, BDTAG Enabled
0
ns
96
t
PD
BMCLK Low to BD 31:0, BDP 3:0, BDTAG Valid
26
ns
97
98
t
PD
BD 31:0, BDP 3:0, BDTAG Valid before
WR
High
Reserved
15
ns
ns
99
t
PD
BD 31:0, BDP 3:0, BDTAG Invalid from
WR
High
0
ns
100
t
PD
BMCLK High to BD 31:0, BDP 3:0, BDTAG Disabled
30
ns
121
t
PD
Read Pulse Width
38
43
ns
122
t
PD
Write Pulse Width
37
ns
123
t
S
ADDR 15:0 Valid to
RD
Low Setup Time
7
14
ns
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