X28C512/X28C513
A.C. CHARACTERISTICS (Over the recommended operating conditions, unless otherwise specified.)
Read Cycle Limits
X28C512-90 X28C512-12 X28C512-15 X28C512-20 X28C512-25
X28C513-90 X28C513-12 X28C513-15 X28C513-20 X28C513-25
Symbol
Parameter
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Units
t
t
t
t
t
t
t
t
t
Read Cycle Time
90
120
150
200
250
ns
ns
ns
ns
ns
ns
ns
ns
ns
RC
CE
AA
OE
Chip Enable Access Time
Address Access Time
90
90
40
120
120
50
150
150
50
200
200
50
250
250
50
Output Enable Access Time
CE LOW to Active Output
OE LOW to Active Output
CE HIGH to High Z Output
OE HIGH to High Z Output
(3)
0
0
0
0
0
0
0
0
0
0
LZ
(3)
OLZ
(3)
40
40
50
50
50
50
50
50
50
50
HZ
(3)
OHZ
OH
Output Hold from
Address Change
0
0
0
0
0
3856 PGM T09.4
Read Cycle
ADDRESS
CE
t
RC
t
CE
t
OE
OE
V
IH
WE
t
t
OLZ
OHZ
t
t
t
t
LZ
OH
HZ
HIGH Z
DATA I/O
DATA VALID
DATA VALID
AA
3856 FHD F16
Notes: (3) t min., t , t
min., and tOHZ are periodically sampled and not 100% tested. t max. and t
max. are measured, with
OHZ
LZ
HZ OLZ
HZ
C = 5pF from the point when CE or OE return HIGH (whichever occurs first) to the time when the outputs are no longer driven.
L
12
XICOR [ XICOR INC. ]
