74
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
3826 Group
MITSUBISHI MICROCOMPUTERS
Table 41 Switching characteristics 1 (low voltage version) (VCC = 4.0 to 5.5 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted)
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.
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
Serial I/O2 output valid time
Serial I/O2 clock output falling time
CMOS output rising time (Note 2)
CMOS output falling time (Note 2)
140
30
0.2 tC (SCLK2)
40
30
Symbol
Parameter
Limits
Min.
ns
Unit
tC (SCLK1)/2–30
–30
10
Typ.
Max.
twH(SCLK1)
twL(SCLK1)
td(SCLK1–TXD)
tv(SCLK1–TXD)
tr(SCLK1)
tf(SCLK1)
twH(SCLK2)
twL(SCLK2)
td(SCLK2–SOUT2)
tv(SCLK2–SOUT2)
tf(SCLK2)
tr(CMOS)
tf(CMOS)
Table 42 Switching characteristics 2 (low voltage version) (VCC = 2.2 to 4.0 V, VSS = 0 V, Ta = –20 to 85°C, unless otherwise noted)
ns
Unit
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.
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
Serial I/O2 output valid time
Serial I/O2 clock output falling time
CMOS output rising time (Note 2)
CMOS output falling time (Note 2)
350
50
0.2 tC (SCLK2)
50
Symbol
Parameter
Limits
Min.
tC (SCLK1)/2–50
–30
20
Max.
twH(SCLK1)
twL(SCLK1)
td(SCLK1–TXD)
tv(SCLK1–TXD)
tr(SCLK1)
tf(SCLK1)
twH(SCLK2)
twL(SCLK2)
td(SCLK2–SOUT2)
tv(SCLK2–SOUT2)
tf(SCLK2)
tr(CMOS)
tf(CMOS)
Typ.
tC (SCLK2)/2–160
0
tC (SCLK2)/2–240
0