28
Am28F010
KEY TO SWITCHING WAVEFORMS
SWITCHING WAVEFORMS
WAVEFORM
INPUTS
OUTPUTS
Steady
Changing from H to L
Changing from L to H
Don’t Care, Any Change Permitted
Changing, State Unknown
Does Not Apply
Center Line is High Impedance State (High Z)
Addresses
CE# (E#)
OE# (G#)
WE
#
(W
#
)
Data (DQ)
5.0 V
V
0 V
Power-up, Standby
Device and
Address Selection
Outputs
Enabled
Data
Valid
Standby, Power-down
Addresses Stable
High Z
High Z
t
WHGL
t
AVQV
(t
ACC
)
t
EHQZ
(t
DF
)
t
GHQZ
(t
DF
)
t
ELQX
(t
LZ
)
t
GLQX
(t
OLZ
)
t
ELQV
(t
CE
)
t
GLQV
(t
OE
)
t
AXQX
(t
OH
)
Output Valid
t
AVAV
(t
RC
)
t
VCS
11559H-16
Figure 7.
AC Waveforms for Read Operations