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參數資料
型號: W89C926
廠商: WINBOND ELECTRONICS CORP
英文描述: PCMCIA ETHERNET NETWORK TWISTED PAIR INTERFACE CONTROLLER
中文描述: PCMCIA以太網雙絞線網絡接口控制器
文件頁數: 33/48頁
文件大小: 395K
代理商: W89C926
W89C926 PENTIC+
Publication Release Date: January 1996
- 33 -
Revision A1
SRAM
(upper and lower values are for 70 nS and 15 nS SRAMs, respectively)
SYMBOL
T1
DESCRIPTION
MIN.
70
15
-
-
5
3
0
0
5
3
5
3
0
0
60
15
60
15
5
3
35
10
5
3
10
5
MAX.
-
-
70
15
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
UNIT
nS
Read cycle time.
T2
MSA0-15 valid to MSD0-7 read data valid.
nS
T3
MSD0-7 read data hold valid from MSA0-15
change.
nS
T4
MSD0-7 read data hold from MSRD deasserted.
nS
T5
RCS held valid after MSRD deasserted.
nS
T6
MSA0-15 held valid after MSRD deasserted.
nS
T7
RCS asserted to MSWR asserted
nS
T8
MSWR pulse width
nS
T9
RCS asserted to MSWR deasserted.
nS
T10
MSA0-15 held valid after MSWR deasserted.
nS
T11
MSD0-7 write data setup before MSWR
asserted.
nS
T12
MSD0-7 write data hold after MSWR deasserted.
nS
T13
Even byte MSWR deasserted to odd byte
MSWR asserted. (see note)
nS
T14
RCS held valid after MSWR deasserted.
5
3
0
0
-
-
-
-
-
-
nS
T15
Even byte address invalid to odd byte address
valid. (see note)
nS
T16
Command recovery time.
30
10
nS
Note: This timing is invalid for byte access, e.g, attribute memory reading on SRAM image.
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