72
38B4 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
TIMING REQUIREMENTS
Table 19 Timing requirements (1)
(V
CC
= 4.0 to 5.5 V, V
SS
= 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Min.
2.0
238
60
60
20
5.0
5.0
4.0
1.6
1.6
80
80
0.95
400
400
200
200
Typ.
Max.
Symbol
Parameter
Limits
Unit
t
W
(RESET)
t
C
(X
IN
)
t
WH
(X
IN
)
t
WL
(X
IN
)
t
C
(X
CIN
)
t
WH
(X
CIN
)
t
WL
(X
CIN
)
t
C
(CNTR)
t
WH
(CNTR)
t
WL
(CNTR)
t
WH
(INT)
t
WL
(INT)
t
C
(S
CLK
)
t
WH
(S
CLK
)
t
WL
(S
CLK
)
t
su
(S
CLK
–S
IN
)
t
h
(S
CLK
–S
IN
)
Reset input “L” pulse width
Main clock input cycle time (X
IN
input)
Main clock input “H” pulse width
Main clock input “L” pulse width
Sub-clock input cycle time (X
CIN
input)
Sub-clock input “H” pulse width
Sub-clock input “L” pulse width
CNTR
0
, CNTR
1
input cycle time
CNTR
0
, CNTR
1
input “H” pulse width
CNTR
0
, CNTR
1
input “L” pulse width
INT
0
to INT
4
input “H” pulse width
INT
0
to INT
4
input “L” pulse width
Serial I/O clock input cycle time
Serial I/O clock input “H” pulse width
Serial I/O clock input “L” pulse width
Serial I/O input set up time
Serial I/O input hold time
μs
ns
ns
ns
μs
μs
μs
μs
μs
μs
ns
ns
μs
ns
ns
ns
ns
Min.
2.0
500
120
120
20
5.0
5.0
10
4.0
4.0
230
230
2.0
950
950
400
300
Typ.
Max.
Symbol
Parameter
Limits
Unit
t
W
(RESET)
t
C
(X
IN
)
t
WH
(X
IN
)
t
WL
(X
IN
)
t
C
(X
CIN
)
t
WH
(X
CIN
)
t
WL
(X
CIN
)
t
C
(CNTR)
t
WH
(CNTR)
t
WL
(CNTR)
t
WH
(INT)
t
WL
(INT)
t
C
(S
CLK
)
t
WH
(S
CLK
)
t
WL
(S
CLK
)
t
su
(S
CLK
–S
IN
)
t
h
(S
CLK
–S
IN
)
Reset input “L” pulse width
Main clock input cycle time (X
IN
input)
Main clock input “H” pulse width
Main clock input “L” pulse width
Sub-clock input cycle time (X
CIN
input)
Sub-clock input “H” pulse width
Sub-clock input “L” pulse width
CNTR
0
, CNTR
1
input cycle time
CNTR
0
, CNTR
1
input “H” pulse width
CNTR
0
, CNTR
1
input “L” pulse width
INT
0
to INT
4
input “H” pulse width
INT
0
to INT
4
input “L” pulse width
Serial I/O clock input cycle time
Serial I/O clock input “H” pulse width
Serial I/O clock input “L” pulse width
Serial I/O input set up time
Serial I/O input hold time
μs
ns
ns
ns
μs
μs
μs
μs
μs
μs
ns
ns
μs
ns
ns
ns
ns
Table 20 Timing requirements (2)
(V
CC
= 2.7 to 5.5 V, V
SS
= 0 V, Ta = –20 to 85 °C, unless otherwise noted)