Renesas ZTAT H8S/2357F, Hardware Manual

Page: 635 / 1047

Rev.6.00 Oct.28.2004 page 607 of 1016
REJ09B0138-0600H
CE
Address
Data H'00
OE
WE
Command write
t
wep
t
ceh
t
dh
t
ds
t
f
t
r
t
nxtc
Note: Data is latched on the rising edge of WE.
t
ces
Memory read mode
Address stable
Data
Figure 19-25 Memory Read Mode Timing Waveforms after Command Write
Table 19-22 AC Characteristics when Entering Another Mode from 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
Command write cycle t
nxtc
20 —
µ
s
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
Write pulse width t
wep
70 — ns
WE
rise time t
r
— 30 ns
WE
fall time t
f
— 30 ns