BRIGHT
Microelectronics
Inc.
BM29F400T/BM29F400B
SWITCHING WAVEFORMS
WAVEFORM
INPUT
OUTPUT
Must Be Steady
Will Be Steady
Will Be Change
from H to L
May Change
from H to L
May Change
from L to H
Will Be Change
from L to H
Don't Care,
Any Change
Permitted
Change,
State Unknown
Center Line is
High impedance
Off State
Does Not
Apply
RC
t
Address Stable
Address
ACC
t
CE
HZ
t
OE
t
OE
DF
t
OEH
t
OH
t
CE
t
WE
High Z
High Z
Output Vaild
Outputs
Figure 8. AC Waveforms for Read Operations
A Winbond Company
Publication Release Date: December 1999
Revision A2
- 25 -
WINBOND [ WINBOND ]
