5962-8863401UC データシートの表示（PDF） - Intersil
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5962-8863401UC Datasheet PDF : 17 Pages
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X28HC256
Endurance and Data Retention
Endurance
Data retention
PARAMETER
AC Conditions of Test
Input pulse levels
Input rise and fall times
Input and output timing levels
0V to 3V
5ns
1.5V
Mode Selection
CE OE WE
MODE
I/O
L
L
H
Read
DOUT
L
H
L
Write
DIN
H
X
X Standby and write High Z
inhibit
X
L
X
Write inhibit
—
X
X
H
Write inhibit
—
POWER
active
active
standby
—
—
Equivalent AC Load Circuit
MIN
1,000,000
100
MAX
Symbol Table
UNIT
Cycles
Years
WAVEFORM INPUTS
OUTPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
Will be
steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not
Known
Center Line
is High
Impedance
5V
1.92kΩ
OUTPUT
1.37kΩ
30pF
AC Electrical Specifications Over Recommended Operating Conditions, Unless Otherwise Specified.
X28HC256-70 X28HC256-90 X28HC256-12
PARAMETER
SYMBOL MIN MAX MIN MAX MIN MAX
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
tRC (Note 5) 70
90
120
tCE (Note 5)
70
90
120
tAA (Note 5)
70
90
120
tOE
35
40
50
tLZ (Note 4)
0
0
0
tOLZ (Note 4)
0
0
0
tHZ (Note 4)
35
40
50
tOHZ (Note 4)
35
40
50
tOH
0
0
0
X28HC256-15
MIN MAX
150
150
150
50
0
0
50
50
0
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
10
FN8108.3
September 21, 2011
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