Normal/Fast Memory ( 128 Kbytes) Single Byte Access Write Cycle - LSI LSI53C875A Technical Manual

Normal/Fast Memory ( = 128 Kbytes) Single Byte Access Write Cycle
Table 6.32
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 6.26 Normal/Fast Memory ( = 128 Kbytes) Single Byte Access 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
Address
t
11
t
12
t
13
1. Middle Address
PCI and External Memory Interface Timing Diagrams
Valid Write Data
1. 2.
t
23
t
20
2. Lower Address
Min Max
25 –
15 –
25 –
30 –
20 –
100 –
60 –
120 –
25 –
25 –
t
24
t
26
t
25
t
21
t
22
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
6-43