参数资料
型号: SYM53C180I2
厂商: LSI CORP
元件分类: 总线控制器
英文描述: SCSI BUS CONTROLLER, PBGA192
封装: 23 X 23 MM, 1.27 MM PITCH, PLASTIC, BGA-192
文件页数: 47/78页
文件大小: 1073K
代理商: SYM53C180I2
Electrical Characteristics
3-17
Figure 3.13 Input/Output Timing - Single Transition
Table 3.18
Output Timing - Single Transition
Symbol Parameter
Min
Max
Units
tST5
Output data setup
Nominal: negotiated/2
ns
tST6
Output data hold
Nominal: negotiated/2
ns
tST7
Output REQ/ACK pulse width
max [negotiated ns,
tST3 5]
max [negotiated ns,
tST3 +5]
ns
tST8
REQ/ACK transport delay
25 ns if REQ/ACK is
clock for input data,
10 ns if not
50 ns if REQ/ACK is
clock for input data,
30 ns if not
ns
Note: Pulse width is a negotiated value and ranges from 12.5 to over 1000 ns.
Table 3.19
Input Timing - Double Transition
Symbol
Parameter
Min
Max
Units
tDT1
Input data setup
1.25
ns
tDT2
Input data hold
1.25
ns
tDT3
Input REQ/ACK assertion pulse width
10
ns
tDT4
Input REQ/ACK deassertion pulse width
10
ns
tST3
SREQ/SACK
Receive Data
(SD[15:0]/)
tST4
tST1
tST2
Send Data
(SD[15:0]/
Output
tST8
tST5
tST7
tST6
REQ/ACK
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