Electrical Characteristics (Vcc
1
≥
Vcc
2
= 3V)
251
Mitsubishi microcomputers
M16C / 62P Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
V
CC1
≥
V
CC2
= 3V
development
Preliminary Specifications Rev.1.0
Specifications in this manual are tentative and subject to change.
Switching Characteristics
(V
CC1
= V
CC2
= 3V, V
SS
= 0V, at Topr =
–
20 to 85
o
C /
–
40 to 85
o
C, CM15=
“
1
”
unless otherwise
specified)
Figure 1.26.11
Table 1.26.46. Memory expansion and Microprocessor Modes
(for 2- to 3-wait setting, external area access and multiplex bus selection)
Symbol
Standard
Min.
Measuring condition
Max.
50
Parameter
Unit
t
d(BCLK-AD)
t
h(BCLK-AD)
t
h(RD-AD)
t
h(WR-AD)
Address output delay time
Address output hold time (refers to BCLK)
Address output hold time (refers to RD)
Address output hold time (refers to WR)
ns
ns
ns
ns
4
t
d(BCLK-CS)
t
h(BCLK-CS)
t
h(RD-CS)
t
h(WR-CS)
Chip select output delay time
Chip select output hold time (refers to BCLK)
Chip select output hold time (refers to RD)
Chip select output hold time (refers to WR)
50
ns
ns
ns
ns
4
(Note 1)
t
d(BCLK-RD)
t
h(BCLK-RD)
t
d(BCLK-WR)
t
h(BCLK-WR)
RD signal output delay time
RD signal output hold time
WR signal output delay time
WR signal output hold time
40
ns
ns
ns
ns
0
(Note 1)
40
t
d(BCLK-DB)
t
h(BCLK-DB)
t
d(DB-WR)
Data output delay time (refers to BCLK)
Data output hold time (refers to BCLK)
Data output delay time (refers to WR)
50
ns
ns
ns
4
(Note 2)
t
d(BCLK-ALE)
t
h(BCLK-ALE)
t
d(AD-ALE)
ALE signal output delay time (refers to BCLK)
ALE signal output hold time (refers to BCLK)
ALE signal output delay time (refers to Address)
40
ns
ns
ns
– 4
t
h(ALE-AD)
t
d(AD-RD)
t
d(AD-WR)
t
dZ(RD-AD)
Note 1: Calculated according to the BCLK frequency as follows:
ALE signal output hold time (refers to Adderss)
RD signal output delay from the end of Address
WR signal output delay from the end of Address
Address output floating start time
30
0
0
ns
ns
ns
ns
0
(Note 1)
8
t
h(WR-DB)
Data output hold time (refers to WR)
ns
(Note 1)
f(BCLK)
0.5 X 10
9
[ns]
(Note 3)
Note 2: Calculated according to the BCLK frequency as follows:
f(BCLK)
(n–0.5) X 10
9
–50
[ns]
Note 3: Calculated according to the BCLK frequency as follows:
f(BCLK)
0.5 X 10
9
–40
[ns]
n is “2” for 2-wait setting, “3” for 3-wait setting.
(Note 1)