Datasheet

Section 17 ROM
Rev.7.00 Feb. 14, 2007 page 782 of 1108
REJ09B0089-0700
Table 17.66 AC Characteristics in Transition from Memory Read Mode to Others
Condition: V
CC
= 3.3 V ± 0.3 V, V
SS
= 0 V, T
a
= 25˚C ± 5˚C
Code Symbol Min Max Unit
Command write cycle t
nxtc
20 — μs
CE hold time t
ceh
0 — ns
CE setup time t
ces
0 — ns
Data hold time t
dh
50 — ns
Data setup time t
ds
50 — ns
Programming pulse width t
wep
70 — ns
WE rise time t
r
— 30 ns
WE fall time t
f
— 30 ns
CE
A18-0
I/O7-0
OE
WE
Other Mode Command Write
t
ceh
t
ds
t
dh
tf tr
t
nxtc
Note : WE and OE should not be enabled simultaneously.
t
ces
t
wep
Memory Read Mode
Address Stable
Figure 17.89 Timing at Transition from Memory Read Mode to Other Modes