參數(shù)資料
型號(hào): KL5KUSB101-L
廠商: Electronic Theatre Controls, Inc.
英文描述: USB to Ethernet Controller
中文描述: USB到以太網(wǎng)控制器
文件頁(yè)數(shù): 12/17頁(yè)
文件大?。?/td> 300K
代理商: KL5KUSB101-L
KL5KUSB101
USB to Ethernet Controller
Kawasaki LSI
2570 North First Street
Suite 301
San Jose, CA 95131
Tel: (408) 570-0555
Fax: (408) 570-0567
www.klsi.com
12
Ver. 2.4
4. SRAM Interface
4.1 SRAM Read Access
Figure 4.1.1 SRAM Read AC Timing
Table 4.1.1 SRAM Read AC Characteristics (over recommended range)
Symbol
Parameter
Min
Typ
Max
Unit
Not
e
1,2
1,2
Trc
Frc
SRAM read cycle
SRAM read frequency
31.25
32
ns
MH
z
Taa
SRAMA valid to
SRAMD
delay (address access)
SRAMD hold time from
SRAMD invalid
SRAMOEN low width
SRAMOEN assert to
SRAMD delay
SRAMD hold time
from SRAMOEN rise
SRAMCSN low width
SRAMCSN assert to
SRAMD delay
SRAMD hold time
from SRAMCSN rise
Note: 1) Same as the USB to Ethernet internal clock cycle time 1T (31.25 ns).
2) Outputs are assumed to have 30pF external capacitive load.
17
ns
2
Thad
2
ns
ns
2
2
Tpoe
Toe
31.25
10
ns
2
Thoe
0
ns
ns
2
Tpcs
Tacs
31.25
1,2
17
ns
2
Thcs
0
ns
2
SRAMA14-0
(OUT)
Thad
valid
Trc
valid
don't care
Tpoe
Thoe
Toe
Tpcs
Thcs
Tacs
Taa
SRAMWEN
(OUT)
SRAMOEN
(OUT)
SRAMCSN
(OUT)
SRAMD7-0
(IN)
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