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參數資料
型號: W77LE532
廠商: WINBOND ELECTRONICS CORP
元件分類: 8位微控制器
英文描述: 8 BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數: 74/85頁
文件大小: 2458K
代理商: W77LE532
Preliminary W77LE532
- 74 -
Movx Characteristics Using Strech Memory Cycles, continued
PARAMETER
SYMBOL
VARIABLE
CLOCK
MIN.
VARIABLE
CLOCK
MAX.
UNITS
STRECH
ALE Low to
RD
or
WR
Low
t
LLWL
0.5t
CLCL
- 5
1.5t
CLCL
- 5
0.5t
CLCL
+ 5
1.5t
CLCL
+ 5
nS
t
MCS
= 0
t
MCS
>0
Port 0 Address to
RD
or
WR
Low
t
AVWL
t
CLCL
- 5
2.0t
CLCL
- 5
nS
t
MCS
= 0
t
MCS
>0
Port 2 Address to
RD
or
WR
Low
t
AVWL2
1.5t
CLCL
- 5
2.5t
CLCL
- 5
nS
t
MCS
= 0
t
MCS
>0
Data Valid to WR Transition
t
QVWX
-5
1.0t
CLCL
- 5
nS
t
MCS
= 0
t
MCS
>0
Data Hold after Write
t
WHQX
t
CLCL
- 5
2.0t
CLCL
- 5
nS
t
MCS
= 0
t
MCS
>0
RD
Low to Address Float
t
RLAZ
0.5t
CLCL
- 5
nS
RD
or WR high to ALE high
t
WHLH
0
1.0t
CLCL
- 5
10
1.0t
CLCL
+ 5
nS
t
MCS
= 0
t
MCS
>0
Note: t
MCS
is a time period related to the Stretch memory cycle selection. The following table shows the time period of t
MCS
for each selection of the Stretch value.
M2
M1
M0
MOVX Cycles
t
MCS
0
0
0
2 machine cycles
0
0
0
1
3 machine cycles
4 t
CLCL
0
1
0
4 machine cycles
8 t
CLCL
0
1
1
5 machine cycles
12 t
CLCL
1
0
0
6 machine cycles
16 t
CLCL
1
0
1
7 machine cycles
20 t
CLCL
1
1
0
8 machine cycles
24 t
CLCL
1
1
1
9 machine cycles
28 t
CLCL
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