參數(shù)資料
型號(hào): MB677
廠商: Fujitsu Limited
英文描述: 16-Bit Proprietary Microcontroller
中文描述: 16位微控制器專(zhuān)有
文件頁(yè)數(shù): 89/106頁(yè)
文件大小: 1648K
代理商: MB677
MB90670/675 Series
89
(7) Bus Write Timing
(AV
CC
= V
CC
= 2.7 V to 5.5 V, 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 Timing”.
Parameter
Symbol
Pin name
Condition
Value
Unit Remarks
Min.
Max.
Effective address
WR
time
WR pulse width
Write data
WR
time t
DVWH
t
AVWL
A19 to A00
1 t
CP
– 15
ns
t
WLWH
WR
AD15 to AD00
AD15 to AD00 V
CC
= 5.0 V
±
10%
AD15 to AD00 V
CC
= 3.0 V
±
10%
3 t
CP
*/2 – 20
3 t
CP
*/2 – 20
20
30
ns
ns
ns
ns
WR
↑ →
data hold time
t
WHDX
t
WHDX
WR
↑ →
address disap-
pear time
WR
↑ →
ALE
time
WR
↓ →
CLK
time
t
WHAX
A19 to A00
1 t
CP
*/2 – 10
ns
t
WHLH
t
WLCH
WRL, ALE
WRH, CLK
1 t
CP
*/2 – 15
1 t
CP
*/2 – 20
ns
ns
CLK
2.4 V
t
WLCH
ALE
WRL, WRH
A19 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
0.8 V
2.4 V
0.8 V
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