參數(shù)資料
型號: MB89677A
廠商: Fujitsu Limited
英文描述: 8-Bit Proprietary Microcontroller(8位專用微控制器)
中文描述: 8位微控制器專利(8位專用微控制器)
文件頁數(shù): 38/59頁
文件大?。?/td> 397K
代理商: MB89677A
38
MB89670/A Series
(8) Bus Write Timing
(AV
CC
= V
CC
= +5.0 V
±
10%, AV
SS
= V
SS
= 0.0 V, T
A
= –40
°
C to +85
°
C)
Value
*1: These characteristics are also applicable to the bus read timing.
*2: For information on t
inst
, see “(4) Instruction Cycle.”
Parameter
Symbol
Pin
Condition
Unit
Remarks
Min.
Max.
Valid address
ALE
time
ALE
time
Address loss time
Valid address
WR
time
WR pulse width
t
AVLL
AD7 to 0, ALE,
A15 to 08
1/4 t
inst*2
– 0.064
μ
s
t
LLAX
AD7 to 0, ALE,
A15 to 08
5
*1
ns
t
AVWL
WR, ALE
1/4 t
inst*2
– 0.06
μ
s
μ
s
ns
t
WLWH
WR
1/2 t
inst*2
– 0.02
Writing data
WR
time
WR
↑ →
Address loss time
WR
↑ →
Data hold time t
WHDX
WR
↑ →
ALE
time
WR
↓ →
CLK
time
CLK
↓ →
WR
time
ALE pulse width
t
DVWL
AD7 to 0, WR
1/2 t
inst*2
– 0.06
t
WHAX
WR, A15 to 08
1/4 t
inst*2
– 0.04
μ
s
μ
s
μ
s
μ
s
ns
μ
s
μ
s
AD7 to 0, WR
1/4 t
inst*2
– 0.04
t
WHLH
WR, ALE
1/4 t
inst
*– 0.04
t
WLCH
WR, CLK
1/4 t
inst*2
– 0.04
t
CLWH
WR, CLK
0
t
LHLL
ALE
1/4 t
inst*2
– 0.035
ALE
↓ →
CLK
time
t
LLCH
ALE, CLK
1/4 t
inst*2
– 0.03
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
t
WHAX
2.4 V
0.8 V
2.4 V
0.8 V
t
WHDX
t
CLWH
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
t
LLAX
t
WLWH
t
DVWH
t
LHLL
t
LLCH
t
WHLH
t
AVLL
t
WLCH
t
AVWL
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