825
CE
A18–A0
OE
WE
I/O7–I/O0
Note: Do not enable
WE
and
OE
at the same time.
t
ceh
t
wep
t
f
t
r
t
ces
t
nxtc
Address stable
t
ds
t
dh
Other mode command write
Memory read mode
Figure 22-19 Timing Waveforms in Transition from Memory Read Mode to Another Mode
Table 22-15 AC Characteristics in Memory Read Mode (Conditions: V
CC
= 3.3 V ±0.3 V,
V
SS
= 0 V, T
a
= 25°C ±5°C)
Item
Symbol
Min
Max
Unit
Access time
t
acc
—
20
µs
CE
output delay time
t
ce
—
150
ns
OE
output delay time
t
oe
—
150
ns
Output disable delay time
t
df
—
100
ns
Data output hold time
t
oh
5
—
ns
CE
A18–A0
OE
WE
I/O7–I/O0
V
IL
V
IL
V
IH
t
acc
t
acc
t
oh
t
oh
Address stable
Address stable
Figure 22-20
CE
and
OE
Enable State Read Timing Waveforms