Datasheet

Rev.6.00 Oct.28.2004 page 608 of 1016
REJ09B0138-0600H
CE
Address
Data H'××
OE
WE
×× mode command write
t
wep
t
ceh
t
dh
t
ds
t
nxtc
t
ces
Address stable
Data
t
f
t
r
Note: Do not enable WE and OE at the same time.
Figure 19-26 Timing Waveforms when Entering Another Mode from Memory Read Mode
Table 19-23 AC Characteristics in Memory Read Mode
Conditions: V
CC
= 5.0 V ±10%, V
SS
= 0 V, T
a
= 25°C ±5°C
Item Symbol Min Max Unit
Access time t
acc
—20µs
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
Address
Data
VIL
VIL
VIH
OE
WE
t
acc
t
acc
Address stable Address stable
Data
Data
t
oh
t
oh
Figure 19-27 Timing Waveforms for CE/OE Enable State Read