参数资料
型号: MB86604LPFV
元件分类: 总线控制器
英文描述: SCSI BUS CONTROLLER, PQFP100
封装: PLASTIC, LQFP-100
文件页数: 18/56页
文件大小: 382K
代理商: MB86604LPFV
25
MB86604L
(b) Read timing
* : The position number indicates the position in the waveform.
Parameter
Symbol
Value
Unit
Base signal
Position*
Min.
Max.
DACK “L” assert time
DREQ “H”
tRQAK
A0—
ns
DREQ “L” negate time
DACK “L”
tAKRQ
B
40
ns
DREQ “H” assert time (8 bit)
DACK “H”
tAKRQ1
C
50
ns
DREQ “H” assert time (16 bit)
DACK “H”
tAKRQ2
C—
2 tCLK + 40
ns
IORD “L” assert time
DACK “L”
tAKRD
D0
ns
DMBHE, DMA0 set up time
IORD “L”
tsuDA
E20
ns
DMBHE, DMA0 hold time
IORD “H”
thDA
F20
ns
IORD “L” level pulse width
twRDL
G40
ns
DACK “H” negate time
IORD “L”
tRDAK1
H1 tCLK
—ns
IORD “H”
tRDAK2
I0
ns
Data output defined time
IORD “L”
tvDMD
J
40
ns
Data output hold time
IORD “H”
thDMD
K10
ns
J
F
K
Valid data
DREQ
DMD15 to DMD0
UDMDP, LDMDP
G
H
I
D
A
C
DACK
DMBHE
DMA0
IORD
t RQAK
t AKRQ
t AKRD
t RDAK1
t RDAK2
t hDA
t wRDL
t hDMD
t vDMD
t suDA
t AKRQ1/2
E
B
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