參數資料
型號: MB90F438LS
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: 39/58頁
文件大小: 629K
代理商: MB90F438LS
MB90435 Series
39
(5) Bus Timing (Read)
(MB90F438L (S) /437L (S) /438L (S) : V
CC
=
3.5 V to 5.5 V, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
105
°
C)
(MB90F439 (S) /439 (S) /V540G : V
CC
=
5.0 V
±
10
%
, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
105
°
C)
Parameter
Symbol
Pin name
Condition
Value
Units
Remarks
Min
Max
ALE pulse width
t
LHLL
ALE
t
CP
/2
20
ns
Valid address
ALE
time
t
AVLL
ALE,
A16 to A23,
AD00 to AD15
t
CP
/2
20
ns
ALE
↓→
Address valid time
t
LLAX
ALE,
AD00 to AD15
t
CP
/2
15
ns
Valid address
RD
time
t
AVRL
A16 toA23,
AD00 to AD15,
RD
t
CP
15
ns
Valid address
Valid data
input
t
AVDV
A16 to A23,
AD00 to AD15
5 t
CP
/2
60
ns
RD pulse width
t
RLRH
RD
3 t
CP
/2
20
ns
RD
↓→
Valid data input
t
RLDV
RD,
AD00 to AD15
3 t
CP
/2
60
ns
RD
↑→
Data hold time
t
RHDX
RD,
AD00 to AD15
0
ns
RD
↓→
ALE
time
RD
↑→
Address valid time
t
RHLH
RD, ALE
t
CP
/2
15
t
CP
/2
10
ns
t
RHAX
RD, A16 to A23
ns
Valid address
CLK
time
t
AVCH
A16 to A23,
AD00 to AD15,
CLK
t
CP
/2
20
ns
RD
↓→
CLK
time
ALE
↓→
RD
time
t
RLCH
RD, CLK
t
CP
/2
20
t
CP
/2
15
ns
t
LLRL
ALE, RD
ns
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