LSI 53C875A Computer Hardware User Manual


 
6-50 Electrical Specifications
Figure 6.31 64 Kbytes ROM Read Cycle
Table 6.35
=64 Kbytes ROM Read Cycle
Symbol Parameter Min Max Unit
t
11
Address setup to MAS/ HIGH 25 ns
t
12
Address hold from MAS/ HIGH 15 ns
t
13
MAS/ pulse width 25 ns
t
14
MCE/ LOW to data clocked in 150 ns
t
15
Address valid to data clocked in 205 ns
t
16
MOE/LOWtodataclockedin 100 ns
t
17
Data hold from address, MOE/, MCE/ change 0 ns
t
18
Address out from MOE/, MCE/ HIGH 50 ns
t
19
Data setup to CLK HIGH 5 ns
CLK
MAD
(Address driven by LSI53C875A;
Data driven by Memory)
MAS1/
(Driven by LSI53C875A)
MAS0/
(Driven by LSI53C875A)
MCE/
(Driven by LSI53C875A)
MOE/
(Driven by LSI53C875A)
MWE/
(Driven by LSI53C875A)
Higher
Address
Lower
Address
Valid
Read
Data
t
17
t
12
t
15
t
14
t
18
t
16
t
19
t
11
t
13