65
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3826 Group
Table 27 Switching characteristics 1 (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 28 Switching characteristics 2 (VCC = 2.5 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