Slow Memory ( 128 Kbytes) Write Cycle - LSI LSI53C875A Technical Manual

Table 6.34

Slow Memory ( 128 Kbytes) Write Cycle

Symbol Parameter
t Address setup to MAS/ HIGH
11
t Address hold from MAS/ HIGH
12
t MAS/ pulse width
13
t Data setup to MWE/ LOW
20
t Data hold from MWE/ HIGH
21
t MWE/ pulse width
22
t Address setup to MWE/ LOW
23
t MCE/ LOW to MWE/ HIGH
24
t MCE/ LOW to MWE/ LOW
25
t MWE/ HIGH to MCE/ HIGH
26
Figure 6.30 Slow Memory ( = 128 Kbytes) Write Cycle
CLK
MAD
(Driven by LSI53C875A)
MAS1/
(Driven by LSI53C875A)
MAS0/
(Driven by LSI53C875A)
MCE/
(Driven by LSI53C875A)
MOE/
(Driven by LSI53C875A)
MWE/
(Driven by LSI53C875A)
Higher Middle
Address Address
t
11
PCI and External Memory Interface Timing Diagrams
Lower
Address
t
12
t
13
t
25
t
20
t
23
Min Max
25 –
15 –
25 –
30 –
20 –
100 –
60 –
120 –
25 –
25 –
Valid Write Data
t
24
t
22
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
26
t
21
6-49