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M16C/62P Group (M16C/62P, M16C/62PT)
Switching Characteristics
(V
= V
= 5V, V
CC1
CC2
Table 23.26 Memory Expansion and Microprocessor Modes (for setting with no wait)
S y m b o l
t
Address Output Delay Time
d(BCLK-AD)
t
Address Output Hold Time (in relation to BCLK)
h(BCLK-AD)
t
Address Output Hold Time (in relation to RD)
h(RD-AD)
t
Address Output Hold Time (in relation to WR)
h(WR-AD)
t
Chip Select Output Delay Time
d(BCLK-CS)
t
Chip Select Output Hold Time (in relation to BCLK)
h(BCLK-CS)
t
ALE Signal Output Delay Time
d(BCLK-ALE)
t
ALE Signal Output Hold Time
h(BCLK-ALE)
t
RD Signal Output Delay Time
d(BCLK-RD)
t
RD Signal Output Hold Time
h(BCLK-RD)
t
WR Signal Output Delay Time
d(BCLK-WR)
t
WR Signal Output Hold Time
h(BCLK-WR)
t
Data Output Delay Time (in relation to BCLK)
d(BCLK-DB)
t
Data Output Hold Time (in relation to BCLK)
h(BCLK-DB)
t
Data Output Delay Time (in relation to WR)
d(DB-WR)
t
Data Output Hold Time (in relation to WR)
h(WR-DB)
t
d(BCLK-HLDA)
HLDA Output Delay Time
N O T E S :
1. Calculated according to the BCLK frequency as follows:
0 . 5 X 1 0
f ( B C L K )
2. Calculated according to the BCLK frequency as follows:
0 . 5 X 1 0
f ( B C L K )
3. This standard value shows the timing when the output is off,
and does not show hold time of data bus.
Hold time of data bus varies with capacitor volume and pull-up
(pull-down) resistance value.
Hold time of data bus is expressed in
t = –CR X ln (1 – V
by a circuit of the right figure.
For example, when V
of output "L" level is
t = – 30pF X 1kΩ X ln (1 – 0.2V
= 6.7ns.
Figure 23.2 Ports P0 to P14 Measurement Circuit
R
e
. v
2
3 .
0
S
e
p
0
, 1
2
0
0
4
R
E
J
0
9
B
0
1
8
5
0 -
2
3
0
Z
= 0V, at Topr = – 20 to 85
SS
P a r a m e t e r
9
– 4 0
[ns]
9
– 1 0
[ns]
/ V
)
OL
CC2
= 0.2V
, C = 30pF, R = 1kΩ, hold time
OL
CC2
CC2
P0
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
page 284
f o
3
6
4
23. Electrical Characteristics (M16C/62P)
o
C / – 40 to 85
Measuring condition
See Figure
23.2
(3)
(3)
f ( B C L K ) i s 1 2 . 5 M H
o r l e s s .
z
/ V
)
CC2
30pF
V
= V
CC1
o
C unless otherwise specified)
S t a n d a r d
Min.
M a x .
2 5
4
0
( N O T E 2 )
2 5
4
15
–4
2 5
0
2 5
0
40
4
(NOTE 1)
( N O T E 2 )
40
DBi
= 5V
CC2
Unit
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
ns
ns
ns
n s
n s
ns
R
C
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