
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3825 Group
65
Table 42. Switching characteristics 1 (M version)
(V
CC = 4.0 to 5.5 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted.)
Notes 1 : When the P4
5/TXD P-channel output disable bit of the UART control register (bit 4 of address 001B16) is “0”.
2 : X
OUT and XCOUT pins are excluded.
Serial I/O clock output “H” pulse width
Serial I/O clock output “L” pulse width
Serial I/O output delay time (Note 1)
Serial I/O output valid time (Note 1)
Serial I/O clock output rising time
Serial I/O clock output falling time
CMOS output rising time (Note 2)
CMOS output falling time (Note 2)
140
30
30
30
30
Symbol Parameter
Limits
Min.
ns
ns
ns
ns
ns
ns
ns
ns
Unit
t
c(S
CLK
)
/2–30
t
c(S
CLK
)
/2–30
–30
10
10
Typ.
Max.
t
wH(SCLK)
twL(SCLK)
t
d(S
CLK
–T
X
D)
t
v(S
CLK
–T
X
D)
tr(SCLK)
tf(SCLK)
tr(CMOS)
tf(CMOS)
Table 43. Switching characteristics 2 (M version)
(VCC = 2.2 to 4.0 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted.)
Notes 1 : When the P4
5/TXD P-channel output disable bit of the UART control register (bit 4 of address 001B16) is “0”.
2 : XOUT and XCOUT pins are excluded.
Serial I/O clock output “H” pulse width
Serial I/O clock output “L” pulse width
Serial I/O output delay time (Note 1)
Serial I/O output valid time (Note 1)
Serial I/O clock output rising time
Serial I/O clock output falling time
CMOS output rising time (Note 2)
CMOS output falling time (Note 2)
350
50
50
50
50
Symbol Parameter
Limits
Min.
ns
ns
ns
ns
ns
ns
ns
ns
Unit
t
c(S
CLK
)
/2–50
t
c(S
CLK
)
/2–50
–30
20
20
Max.
twH(SCLK)
twL(SCLK)
t
d(S
CLK
–T
X
D)
t
v(S
CLK
–T
X
D)
tr(SCLK)
tf(SCLK)
tr(CMOS)
tf(CMOS)
Typ.
Fig. 46 Circuit for measuring output switching characteristics
e
a
s
u
r
e
m
e
n
t
o
u
t
p
u
t
p
n
1
0
0
p
o
u
t
p
u
ote:
en
t 4 o
t
e
contro
reg
ster
a
ress
001B
16
) is “1” (N-channel open-drain output mode).
-
c
a
n
n
e
o
p
e
n
-
r
a
n
o
u
t
p
u
t
o
t
e
1
Ω
1
0
0
p
easurement output p
n
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