MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 22 Switching characteristics 1 (VCC = 4.0 to 5.5 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted)
Limits
Typ.
Symbol
Parameter
Unit
Min.
Max.
140
tC (SCLK1)/2–30
tC (SCLK1)/2–30
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
twH(SCLK1)
twL(SCLK1)
Serial I/O1 clock output “H” pulse width
Serial I/O1 clock output “L” pulse width
td(SCLK1–TXD) Serial I/O1 output delay time (Note 1)
tv(SCLK1–TXD) Serial I/O1 output valid time (Note 1)
–30
tr(SCLK1)
Serial I/O1 clock output rising time
Serial I/O1 clock output falling time
Serial I/O2 clock output “H” pulse width
Serial I/O2 clock output “L” pulse width
Serial I/O2 output delay time
30
30
tf(SCLK1)
twH(SCLK2)
twL(SCLK2)
t
C
(SCLK2)/2–160
t
C (SCLK2)/2–160
t
t
d(SCLK2–SOUT2
v(SCLK2–SOUT2
)
0.2 ✕ t
C
(SCLK2
)
)
Serial I/O2 output valid time
0
tf(SCLK2)
tr(CMOS)
tf(CMOS)
Serial I/O2 clock output falling time
CMOS output rising time (Note 2)
CMOS output falling time (Note 2)
40
30
30
10
10
Notes1: When the P45/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.
Table 23 Switching characteristics 2 (VCC = 2.2 to 4.0 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted)
Limits
Symbol
Parameter
Unit
Min.
Typ.
Max.
350
Serial I/O1 clock output “H” pulse width
Serial I/O1 clock output “L” pulse width
Serial I/O1 output delay time (Note 1)
Serial I/O1 output valid time (Note 1)
Serial I/O1 clock output rising time
Serial I/O1 clock output falling time
Serial I/O2 clock output “H” pulse width
Serial I/O2 clock output “L” pulse width
Serial I/O2 output delay time
tC (SCLK1)/2–50
tC (SCLK1)/2–50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
twH(SCLK1)
twL(SCLK1)
td(SCLK1–TXD)
tv(SCLK1–TXD)
tr(SCLK1)
–30
50
50
tf(SCLK1)
twH(SCLK2)
twL(SCLK2)
t
C
(SCLK2)/2–240
t
C (SCLK2)/2–240
t
t
d(SCLK2–SOUT2
v(SCLK2–SOUT2
)
0.2 ✕ t
C
(SCLK2
)
Serial I/O2 output valid time
)
0
Serial I/O2 clock output falling time
CMOS output rising time (Note 2)
CMOS output falling time (Note 2)
tf(SCLK2)
tr(CMOS)
tf(CMOS)
50
50
50
20
20
Notes1: When the P45/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.
57
MITSUBISHI [ Mitsubishi Group ]
