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位微控制器專有
文件頁數(shù): 87/106頁
文件大小: 1648K
代理商: MB677
MB90670/675 Series
87
(6) Bus Read 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.
ALE pulse width
t
LHLL
t
LHLL
t
AVLL
t
AVLL
ALE
ALE
AD15 to AD00 V
CC
= 5.0 V ±10% 1 t
CP
*/2 – 25
AD15 to AD00 V
CC
= 3.0 V ±10% 1 t
CP
*/2 – 40
V
CC
= 5.0 V ±10% 1 t
CP
*/2 – 20
V
CC
= 3.0 V ±10% 1 t
CP
*/2 – 35
ns
ns
ns
ns
Effective address
ALE
time
ALE
address effec-
tive time
Effective address
RD
time
Effective address
read data time
t
LLAX
AD15 to AD00
1 t
CP
*/2 – 15
ns
t
AVRL
AD15 to AD00
1 t
CP
* – 15
ns
t
AVDV
t
AVDV
t
RLRH
t
RLDV
t
RLDV
t
RHDX
t
RHLH
AD15 to AD00 V
CC
= 5.0 V ±10%
AD15 to AD00 V
CC
= 3.0 V ±10%
RD
AD15 to AD00 V
CC
= 5.0 V ±10%
AD15 to AD00 V
CC
= 3.0 V ±10%
AD15 to AD00
RD, ALE
RD,
A19 to A16
CLK,
A19 to A16
RD, CLK
5 t
CP
*/2 – 60
5 t
CP
*/2 – 80
3 t
CP
*/2 – 60
3 t
CP
*/2 – 80
ns
ns
ns
ns
ns
ns
ns
RD pulse width
3 t
CP
*/2 – 20
0
1 t
CP
*/2 – 15
RD
read data time
RD
data hold time
RD
ALE
time
RD
address disap-
pear time
Effective address
CLK
time
RD
CLK
time
t
RHAX
1 t
CP
*/2 – 10
ns
t
AVCH
1 t
CP
*/2 – 20
ns
t
RLCH
1 t
CP
*/2 – 20
ns
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