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M16C/62P Group (M16C/62P, M16C/62PT)
23. Electrical Characteristics
Rev.2.41
Jan 10, 2006
Page 344 of 390
REJ09B0185-0241
Figure 23.20
Timing Diagram (8)
Memory Expansion Mode, Microprocessor Mode
(
For 2-wait setting, external area access and multiplex bus selection
)
BCLK
CSi
t
d(BCLK-CS)
40ns.max
ADi
t
d(BCLK-AD)
40ns.max
ALE
t
h(BCLK-ALE)
-4ns.min
RD
40ns.max
t
h(BCLK-RD)
0ns.min
t
h(BCLK-AD)
4ns.min
t
h(BCLK-CS)
4ns.min
t
cyc
t
h(RD-CS)
t
h(RD-AD)
BHE
ADi
/DBi
t
h(RD-DB)
0ns.min
t
d(AD-ALE)
Read timing
t
d(BCLK-WR)
40ns.max
t
h(BCLK-WR)
0ns.min
BCLK
CSi
t
d(BCLK-CS)
40ns.max
ADi
t
d(BCLK-AD)
40ns.max
ALE
40ns.max
t
h(BCLK-ALE)
-4ns.min
t
h(BCLK-AD)
4ns.min
t
h(BCLK-CS)
4ns.min
t
cyc
t
h(WR-AD)
BHE
t
d(BCLK-DB)
50ns.max
4ns.min
t
h(BCLK-DB)
t
d(DB-WR)
t
h(WR-DB)
ADi
/DBi
Data output
WR,WRL,
WRH
Write timing
Address
(0.5
×
t
cyc
-10)ns.min
Address
Data input
50ns.min
(0.5
×
t
cyc
-10)ns.min
t
d(BCLK-ALE)
t
d(BCLK-RD)
(0.5
×
t
cyc
-10)ns.min
t
h(WR-CS)
Address
t
d(AD-ALE)
(0.5
×
t
cyc
-40)ns.min
(1.5
×
t
cyc
-50)ns.min
(0.5
×
t
cyc
-10)ns.min
t
d(BCLK-ALE)
(0.5
×
t
cyc
-40)ns.min
Address
40ns.max
t
su(DB-RD)
t
ac3(RD-DB)
(0.5
×
t
cyc
-10)ns.min
t
h(ALE-AD)
t
d(AD-RD)
0ns.min
t
dZ(RD-AD)
8ns.max
t
d(AD-WR)
0ns.min
(1.5
×
t
cyc
-60)ns.max
t
cyc
=
1
f(BCLK)
(0.5
×
t
cyc
-15)ns.min
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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