參數(shù)資料
型號: AM53C94JC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 總線控制器
英文描述: High Performance SCSI Controller
中文描述: SCSI BUS CONTROLLER, PQCC84
封裝: PLASTIC, LCC-84
文件頁數(shù): 47/63頁
文件大小: 455K
代理商: AM53C94JC
P R E L I M I N A R Y
AMD
47
Am53C94/Am53C96
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
t
PD
t
P
t
PWL
t
PD
t
PD
t
P
t
PWH
t
Z
t
H
t
S
t
PWL
t
S
t
H
t
PWH
t
H
DACK
to DREQ Valid Delay
DACK
to
DACK
period
DACK
Pulse Width Low
DACK
to Data Valid Delay
DACK
to DREQ Valid Delay
DACK
to
DACK
period
DACK
Pulse Width High
DACK
to Data High Impedance
DACK
to Data Hold Time
DACK
to
DMAWR
Set Up Time
DMAWR
Pulse Width Low
Data to
DMAWR
Set Up Time
DMAWR
to
DACK
Hold Time
DMAWR
Pulse Width High
Data to
DMAWR
Hold Time
38
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
100
60
41
40
t
3
+50–t
51
12
40
2
0
50
15
0
40
0
Parameter
Symbol
No.
Parameter Description
Test Conditions
Min
Max
Unit
Note:
There is a one-to-one relationship between every AMD and NCR Parameter (refer to Appendix B).
DMA Read without Byte Control
45
49
46
47
67
51
48
53
52
50
DREQ
DACK
DMA 15–0
DMAP 1–0
49
45
51
47
DMA Write without Byte Control
45
49
46
47
51
55
57
54
56
59
50
58
52
49
45
47
48
53
51
DMA 15–0
DMAP 1–0
DREQ
DACK
DMAWR
16506C-41
16506C-42
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