X28HC256 データシートの表示（PDF） - Xicor -> Intersil
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X28HC256 Datasheet PDF : 24 Pages
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X28HC256
A.C. CHARACTERISTICS (Over the recommended operating conditions, unless otherwise specified.)
Read Cycle Limits
X28HC256-70 X28HC256-90 X28HC256-12 X28HC256-15
Symbol
Parameter
Min. Max. Min. Max. Min. Max. Min. Max. Units
tRC(5) Read Cycle Time
70
90
120
150
ns
tCE(5) Chip Enable Access Time
70
90
120
150 ns
tAA(5) Address Access Time
70
90
120
150 ns
tOE Output Enable Access Time
35
40
50
50 ns
tLZ (4) CE LOW to Active Output
0
0
0
0
ns
tOLZ (4) OE LOW to Active Output
0
0
0
0
ns
tHZ (4) CE HIGH to High Z Output
35
40
50
50 ns
tOHZ (4) OE HIGH to High Z Output
35
40
50
50 ns
tOH Output Hold From Address Change 0
0
0
0
ns
3859 PGM T10.2
Read Cycle
ADDRESS
CE
OE
VIH
WE
DATA I/O
HIGH Z
tRC
tCE
tOE
tOLZ
tLZ
tOH
DATA VALID
tAA
tHZ
DATA VALID
tOHZ
3859 FHD F05
Notes: (4) tLZ min., tHZ, tOLZ min. and tOHZ are periodically sampled and not 100% tested, tHZ and tOHZ are measured, with CL = 5pF,
from the point whin CE, OE return HIGH (whichever occurs first) to the time when the outputs are no longer driven.
(5) For faster 256K products, refer to X28VC256 product line.
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