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AM27C256-255DIB データシートの表示(PDF) - Advanced Micro Devices
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AM27C256-255DIB
256 Kilobit (32,768 x 8-Bit) CMOS EPROM
Advanced Micro Devices
AM27C256-255DIB Datasheet PDF : 12 Pages
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KEY TO SWITCHING TEST WAVEFORMS
WAVEFORM
SWITCHING WAVEFORMS
INPUTS
Must Be
Steady
May
Change
from H to L
May
Change
from L to H
Don’t Care,
Any Change
Permitted
Does Not
Apply
OUTPUTS
Will Be
Steady
Will Be
Changing
from H to L
Will Be
Changing
from L to H
Changing
State
Unknown
Center
Line is High
Impedence
“Off” State
KS000010
2.4
Addresses
0.45
2.0
Addresses Valid
2.0
0.8
0.8
AMD
CE
t
CE
OE
Output
High Z
t
OE
t
ACC
(Note 1)
t
OH
Valid Output
Notes:
1.
OE
may be delayed up to t
ACC
–t
OE
after the falling edge of the addresses without impact on t
ACC.
2. t
DF
is specified from
OE
or
CE
, whichever occurs first.
t
DF
(Note 2)
High Z
08007H-10
Am27C256
2-43
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