AM53CF94JCW AMD [Advanced Micro Devices], AM53CF94JCW Datasheet - Page 48
AM53CF94JCW
Manufacturer Part Number
AM53CF94JCW
Description
Enhanced SCSI-2 Controller (ESC)
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM53CF94JCW.pdf
(76 pages)
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Note:
Clock Frequency Range for Fast Clk enabled.
Note:
Clock Frequency Range for Fast Clk disabled.
48
FastClk Enabled (Control Register Three (0CH) bit 3=1)
FastClk Disabled (Control Register Three (0CH) bit 3=0)
No.
No.
3A
AMD
1
2
3
4
1
2
4
= 20 MHz to 40 MHz for Asynchronous Transmission
= 20 MHz to 40 MHz for Synchronous Transmission
= 10 MHz to 25 MHz for Asynchronous transmission
= 12 MHz to 25 MHz for Synchronous transmission
CLK
Parameter
Parameter
Symbol
Symbol
t
t
t
PWH
t
PWL
t
PWL
t
PWH
CP
t
CP
t
L
L
1
1
Clock Pulse Width Low
Clock period (1
Synchronization latency
Clock Pulse Width High
Clock Pulse Width Low
Clock period (1
Synchronization latency
Clock Pulse Width High
Parameter Description
Parameter Description
4
3A
Am53CF94/Am53CF96
P R E L I M I N A R Y
Clock Frequency)
Clock Frequency)
1
Clock Input
1
must be true:
2t
2t
For Synchronous data transmissions, the following conditions
2
CP
CP
+ t
+ t
PWL
PWH
3
Test Conditions
Test Conditions
97.92 ns
97.92 ns
17348B-37
0.4 t
0.4 t
14.58
54.58
14.58
54.58
Min
Min
40
25
CP
CP
0.65 t
0.65 t
t
0.6 t
0.6 t
PWL +
2 t
Max
Max
100
50
CP
t
CP
CP
CP
CP
CP
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
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