M16C/62P Group (M16C/62P, M16C/62PT)
23. Electrical Characteristics
Rev.2.41
Jan 10, 2006
Page 342 of 390
REJ09B0185-0241
Figure 23.18
Timing Diagram (6)
Read timing
Write timing
BCLK
CSi
ALE
DBi
ADi
BHE
WR, WRL
WRH
Memory Expansion Mode, Microprocessor Mode
(
for 2-wait setting and external area access
)
BCLK
CSi
ALE
DBi
ADi
BHE
RD
t
cyc
t
d(BCLK-CS)
30ns.max
t
d(BCLK-AD)
30ns.max
t
d(BCLK-ALE)
30ns.max
t
h(BCLK-ALE)
-4ns.min
t
d(BCLK-RD)
30ns.max
Hi-Z
t
su(DB-RD)
50ns.min
t
h(RD-DB)
0ns.min
t
h(BCLK-RD)
0ns.min
t
h(RD-AD)
0ns.min
t
h(BCLK-AD)
4ns.min
t
h(BCLK-CS)
4ns.min
t
cyc
Hi-Z
t
d(BCLK-CS)
30ns.max
t
d(BCLK-AD)
30ns.max
t
d(BCLK-ALE)
30ns.max
t
h(BCLK-ALE)
-4ns.min
t
d(BCLK-WR)
30ns.max
t
h(BCLK-CS)
4ns.min
t
h(BCLK-AD)
4ns.min
t
h(WR-AD)
(0.5
×
t
cyc
-10)ns.min
t
h(BCLK-WR)
0ns.min
t
d(BCLK-DB)
40ns.max
t
d(DB-WR)
(1.5
×
t
cyc
-40)ns.min
t
h(BCLK-DB)
4ns.min
t
h(WR-DB)
(0.5
×
t
cyc
-10)ns.min
t
ac2(RD-DB)
(2.5
×
t
cyc
-60)ns.max
t
cyc
=
1
f(BCLK)
V
CC1
=V
CC2
=3V
Measuring conditions
· V
CC1
=V
CC2
=3V
· Input timing voltage : V
IL
=0.6V, V
IH
=2.4V
· Output timing voltage : V
OL
=1.5V, V
OH
=1.5V
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