參數(shù)資料
型號: MB89857
廠商: Fujitsu Limited
英文描述: 8-Bit Proprietary Microcontroller(8位專用微控制器)
中文描述: 8位微控制器專利(8位專用微控制器)
文件頁數(shù): 31/51頁
文件大小: 798K
代理商: MB89857
31
MB89860/850 Series
(8) Bus Write Timing
(V
CC
= +5.0 V
±
10%, F
C
= 10 MHz, AV
SS
= V
SS
= 0.0 V, T
A
= –40
°
C to +85
°
C)
*1: For information on t
inst
, see “(4) Instruction Cycle.”
*2: These characteristics are also applicable to the bus read timing.
Parameter
Symbol
Pin
Condition
Value (10 MHz)
Unit
Remarks
Min.
Max.
Valid address
ALE
time
ALE
time
address
invalid time
Valid address
WR
ime t
AVWL
WR pulse width
t
AVLL
AD7 to AD0,
ALE, A15 o A08
Load
condition:
50 pF
1/4
inst*1
– 64 ns
ns
t
LLAX
5
ns
WR, ALE
1/4
inst*1
– 60 ns
ns
t
WLWH
WR
1/2
inst*1
– 20 ns
ns
Write data
WR
time t
DVWH
WR
address invalid
time
WR
data hold time
WR
ALE
time
WR
CLK
time
CLK
WR
time
ALE pulse width
AD7 o AD0, WR
1/2
inst*1
– 60 ns
ns
t
WHAX
WR, A15 o A08
1/4
inst*1
– 40 ns
ns
t
WHDX
AD7 o AD0, WR
1/4
inst*1
– 40 ns
ns
t
WHLH
WR, ALE
1/4
inst*1
– 40 ns
ns
t
WLCH
WR, CLK
1/4
inst*1
– 60 ns
ns
t
CLWH
0
ns
t
LHLL
ALE
t
XCYL
– 35 ns
*2
ns
ALE
CLK
time
t
LLCH
ALE, CLK
t
XCYL
– 35 ns
*2
ns
ALE
AD
A
WR
CLK
2.4 V
0.8 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
0.8 V
t
CLWH
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
t
LLAX
t
WHLH
t
LLCH
t
LHLL
t
DVWH
t
WHDX
t
WLCH
t
WLWH
t
WHAX
t
AVWL
t
AVLL
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