X28C64 View Datasheet(PDF) - Xicor -> Intersil
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X28C64 Datasheet PDF : 25 Pages
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X28C64
A.C. CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified.)
Read Cycle Limits
Symbol
tRC
tCE
tAA
tOE
tLZ(4)
tOLZ(4)
tHZ(4)
tOHZ(4)
tOH
Parameter
Read Cycle Time
Chip Enable Access Time
Address Access Time
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
Output Hold from Address Change
X28C64-15
Min. Max.
150
150
150
70
0
0
50
50
0
X28C64-20
Min. Max.
200
200
200
80
0
0
50
50
0
X28C64-25
Min. Max. Units
250
ns
250 ns
250 ns
100 ns
0
ns
0
ns
50 ns
50 ns
0
ns
3856 PGM T10.1
Read Cycle
ADDR.
CE
OE
VIH
WE
DATA I/O
HIGH Z
tRC
tCE
tOE
tOLZ
tLZ
tOH
DATA VALID
tAA
tHZ
DATA VALID
tOHZ
3853 FHD F05
Notes: (4) tLZ min.,tHZ, tOLZ min., and tOHZ are periodically sampled and not 100% tested. tHZ max. and tOHZ max. are measured, with
CL = 5pF, from the point when CE or OE return HIGH (whichever occurs first) to the time when the outputs are no longer driven.
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