參數(shù)資料
型號(hào): MB89643
廠商: Fujitsu Limited
英文描述: 8-Bit Proprietary Microcontroller(8位專(zhuān)用微控制器)
中文描述: 8位微控制器專(zhuān)利(8位專(zhuān)用微控制器)
文件頁(yè)數(shù): 37/58頁(yè)
文件大?。?/td> 424K
代理商: MB89643
37
MB89640 Series
(7) Bus Read Timing
(V
CC
= +5.0 V
±
10%, F
CH
= 10 MHz, AV
SS
= V
SS
= 0.0 V, T
A
= –40
°
C to +85
°
C)
Value
Min.
RD, A15 to 08,
AD7 to 0
RD
1/2 t
inst
*– 20 ns
AD7 to 0,
A15 to 08
RD, AD7 to 0
1/2 t
inst
*– 80 ns
AD7 to 0, RD
0
RD, ALE
1/4 t
inst
*– 40 ns
RD, A15 to 08
1/4 t
inst
*– 40 ns
RD, CLK
1/4 t
inst
*– 40 ns
RD, CLK
0
RD, BUFC
–5
A15 to 08,
AD7 to 0, BUFC
* :For information on t
inst
, see “(4) Instruction Cycle.”
Parameter
Symbol
Pin
Condition
Unit
Remarks
Max.
Valid address
RD
time
t
AVRL
1/4 t
inst
*– 64 ns
ns
RD pulse width
Valid address
read data
time
RD
read data time
RD
data hold time
RD
ALE
time
RD
address invalid time
RD
CLK
time
CLK
RD
time
RD
BUFC
time
t
RLRH
ns
t
AVDV
1/2 t
inst
*
200
ns
No wait
t
RLDV
t
RHDX
t
RHLH
t
RHAX
t
RLCH
t
CLRH
t
RLBL
120
ns
ns
ns
ns
ns
ns
ns
No wait
BUFC
↑→
Valid address time
t
BHAV
5
ns
ALE
AD
A
RD
BUFC
CLK
2.4 V
0.8 V
0.8 V
2.4 V
0.8 V
0.7 V
CC
0.3 V
CC
0.7 V
CC
0.3 V
CC
2.4 V
0.8 V
2.4 V
0.8 V
0.8 V
2.4 V
0.8 V
t
CLRH
t
RHAX
2.4 V
0.8 V
2.4 V
2.4 V
0.8 V
t
RHDX
t
BHAV
t
AVDV
t
RLBL
t
RHLH
t
AVRL
t
RLCH
t
RLDV
t
RLRH
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