1-50
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3822 Group
Measurement output pin
100 pF
CMOS output
Note : When bit 4 of the UART
control register (address 001B 16) is “1”.
(N-channel open-drain output mode)
N-channel open-drain output (Note)
1 k
100 pF
Measurement output pin
SWITCHING CHARACTERISTICS 1(VCC = 4.0 to 5.5 V, VSS = 0 V, Ta = –20 to 85
°C, unless otherwise noted.
Notes 1 : 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/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
Symbol
Parameter
Limits
Min.
ns
Unit
tc(SCLK)/2–30
–30
10
Typ.
Max.
twH(SCLK)
twL(SCLK)
td(SCLK–TXD)
tv(SCLK–TXD)
tr(SCLK)
tf(SCLK)
tr(CMOS)
tf(CMOS)
Extended operating temperature version : VCC = 3.0 to 5.5 V, Ta = –40 to –20
°C and VCC = 2.5 to 5.5 V, Ta = –20 to 85°C)
Fig. 43 Circuit for measuring output switching characteristics (1)
SWITCHING CHARACTERISTICS 2 (VCC = 2.5 to 4.0 V, VSS = 0 V, Ta = –20 to 85
°C, unless otherwise noted.
Notes 1 : 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.
Extended operating temperature version : VCC = 3.0 to 5.5 V, Ta = –40 to –20
°C and VCC = 2.5 to 5.5 V, Ta = –20 to 85°C)
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
Symbol
Parameter
Limits
Min.
ns
Unit
tc(SCLK)/2–50
–30
20
Max.
twH(SCLK)
twL(SCLK)
td(SCLK–TXD)
tv(SCLK–TXD)
tr(SCLK)
tf(SCLK)
tr(CMOS)
tf(CMOS)
Typ.