參數(shù)資料
型號(hào): MB90570
廠商: Fujitsu Limited
英文描述: Hex Schmitt-trigger Inverters 14-CDIP -55 to 125
中文描述: 16位微控制器專有
文件頁數(shù): 92/120頁
文件大小: 1754K
代理商: MB90570
MB90570 Series
92
(7) 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)
* : For t
CP
(internal operating clock cycle time), refer to “(3) Clock Timings.”
Parameter
Symbol
Pin name
Condition
Value
Unit Remarks
Min
Max
Effective address
WR
time
t
AVWL
WRL, WRH,
A23 to A16,
AD15 to AD00
1 t
CP
– 15
ns
WR pulse width
t
WLWH
WRL, WRH
3 t
CP
*/2 – 20
ns
Write data
WR
time
t
DVWH
WRL, WRH,
AD15 to AD00
3 t
CP
*/2 – 20
ns
WR
↑ →
data hold time
t
WHDX
WRL, WRH,
AD15 to AD00
20
ns
WR
↑ →
address
effective time
WR
↑ →
ALE
time
WR
↓ →
CLK
time
t
WHAX
WRL, WRH,
A23 to A16
1 t
CP
*/2 – 10
ns
t
WHLH
ALE, WRL
1 t
CP
*/2 – 15
ns
t
WLCH
CLK, WRH
1 t
CP
*/2 – 20
ns
CLK
2.4 V
t
WLCH
ALE
WRL, WRH
A23 to A16
2.4 V
0.8 V
AD15 to AD00
Address
Write data
t
WHLH
t
AVWL
t
WLWH
t
DVWH
t
WHDX
t
WHAX
2.4 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
2.4 V
0.8 V
0.8 V
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