X20C05
A.C. CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified)
Read Cycle Limits
X20C05-35
X20C05-45
X20C05-55
Symbol
Parameter
Read Cycle Time
Min.
Max.
Min.
Max.
Min.
Max. Units
t
t
t
t
t
t
t
t
t
35
45
55
ns
ns
ns
ns
ns
ns
ns
ns
RC
CE
AA
OE
Chip Enable Access Time
35
35
20
45
45
25
55
55
30
Address Access Time
Output Enable Access Time
Chip Enable to Output in Low Z
Output Enable to Output in Low Z
Chip Disable to Output in High Z
Output Disable to Output in High Z
Output Hold From Address Change
(3)
0
0
0
0
0
0
LZ
(3)
OLZ
(3)
15
15
20
20
25
25
HZ
(3)
OHZ
OH
0
0
0
ns
3827 PGM T10
Read Cycle
t
RC
ADDRESS
CE
t
CE
t
OE
OE
V
IH
WE
t
t
OLZ
OHZ
t
t
t
LZ
HZ
OH
DATA I/O
DATA VALID
DATA VALID
t
AA
3827 FHD F05
Note: (3) t min., t , t
LZ HZ OLZ
min., and t
OHZ
are periodically sampled and not 100% tested. t and t
HZ
are measured, with C = 5pF,
OHZ L
from the point when CE or OE return HIGH (whichever occurs first) to the time when the outptus are no longer driven.
6
XICOR [ XICOR INC. ]
