參數(shù)資料
型號: MB90671
廠商: Fujitsu Limited
英文描述: 16-Bit Proprietary Microcontroller(16位專用微控制器)
中文描述: 16位微控制器專利(16位專用微控制器)
文件頁數(shù): 78/111頁
文件大小: 736K
代理商: MB90671
MB90670/675 Series
78
(7) Bus Write Timing
(V
CC
= +2.7 V to +5.5 V, V
SS
= 0.0 V, T
A
= –40
°
C to +85
°
C)
Value
Note: t
CP
is the internal operating clock cycle time (unit: ns).
Parameter
Symbol
Pin name
Condition
Unit
Remarks
Min.
Max.
Valid address
WR
time
WR pulse width
Write data
WR
time
t
AVWL
A19 to A00
t
CP
– 15
ns
t
WLWH
WR
3 t
CP
/2 – 20
ns
t
DVWH
AD15 to AD00
3 t
CP
/2 – 20
ns
WR
↑ →
Data hold time
t
WHDX
AD15 to AD00
V
CC
= +5.0 V
±
10%
V
CC
= +3.0 V
±
10%
20
ns
30
ns
WR
↑ →
Address invalid
time
t
WHAX
A19 to A00
t
CP
/2 – 10
ns
WR
↑ →
ALE
time
t
WHLH
WRL, WRH,
ALE
t
CP
/2 – 15
ns
WR
↑ →
CLK
time
t
WLCH
WRL, WRH,
CLK
t
CP
/2 – 20
ns
CLK
ALE
WRL, WRH
A19 to A16
AD15 to AD00
Address
Write data
+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
+2.4 V
+2.4 V
+2.4 V
+0.8 V
t
DVWH
t
WHDX
t
WHAX
t
WHLH
t
WLCH
t
WLWH
t
AVWL
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