參數(shù)資料
型號: MB89850R
廠商: Fujitsu Limited
英文描述: 488-bit Proprietary Microcontroller
中文描述: 488位微控制器專有
文件頁數(shù): 29/48頁
文件大?。?/td> 323K
代理商: MB89850R
MB89850R Series
29
(7) Bus Write Timing
(V
CC
= +5.0 V
±
10%, F
C
= 10 MHz, AV
SS
= V
SS
= 0.0 V, T
A
= –40
°
C to +85
°
C)
*1: For information on t
inst
, see “(4) Instruction Cycle.”
*2: These characteristics are also applicable to the bus read timing.
Parameter
Symbol
Pin name
Condition
Value (10 MHz)
Unit Remarks
Min.
Max.
Valid address
ALE
time
ALE
time
address
invalid time
t
AVLL
AD7 to AD0,
ALE, A15 to A08
Load
condition:
50 pF
1/4 t
inst
*
1
– 64 ns
ns
t
LLAX
5
ns
Valid address
WR
time
WR pulse width
Write data
WR
time
WR
address invalid time t
WHAX
WR
data hold time
WR
ALE
time
WR
CLK
time
CLK
WR
time
ALE pulse width
t
AVWL
WR, ALE
1/4 t
inst
*
1
– 60 ns
ns
t
WLWH
WR
1/2 t
inst
*
1
– 20 ns
ns
t
DVWH
AD7 to AD0, WR
1/2 t
inst
*
1
– 60 ns
ns
WR, A15 to A08
1/4 t
inst
*
1
– 40 ns
ns
t
WHDX
AD7 to AD0, WR
1/4 t
inst
*
1
– 40 ns
ns
t
WHLH
WR, ALE
1/4 t
inst
*
1
– 40 ns
ns
t
WLCH
WR, CLK
1/4 t
inst
*
1
– 60 ns
ns
t
CLWH
0
ns
t
LHLL
ALE
t
XCYL
– 35 ns
*2
ns
ALE
CLK
time
t
LLCH
ALE, CLK
t
XCYL
– 35 ns
*2
ns
ALE
AD
A
WR
CLK
2.4 V
0.8 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
t
CLWH
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
t
LLAX
t
WHLH
t
LLCH
t
LHLL
t
DVWH
t
WHDX
t
WLCH
t
WLWH
t
WHAX
t
AVWL
t
AVLL
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