38K2 Datasheet, PDF (137/151 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

38K2 Group (L Ver.)
Switching Characteristics
Table 26 Switching characteristics (1) (VCC = 4.00 to 5.25 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Symbol
Parameter
Limits
Min.
Typ.
tWH(SCLK)
Serial I/O clock output “H” pulse width
tC(SCLK)/2–30
tWL(SCLK)
Serial I/O clock output “L” pulse width
tC(SCLK)/2–30
td(SCLK–TxD)
Serial I/O output delay time
tv(SCLK–TxD)
Serial I/O output valid time
–30
tr(SCLK)
Serial I/O clock output rising time
tf(SCLK)
Serial I/O clock output falling time
tr(CMOS)
CMOS output rising time (Note)
tf(CMOS)
CMOS output falling time (Note)
Notes: Pins XOUT, D0+, D0-, D1+, D2-, D2+, D2- are excluded.
Unit
Max.
ns
ns
140
ns
ns
30
ns
30
ns
30
ns
30
ns
Table 27 Switching characteristics (2) (VCC = 3.00 to 4.00 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Symbol
tWH(SCLK)
tWL(SCLK)
td(SCLK–TxD)
tv(SCLK–TxD)
tr(SCLK)
tf(SCLK)
tr(CMOS)
tf(CMOS)
Parameter
Serial I/O clock output “H” pulse width
Serial I/O clock output “L” pulse width
Serial I/O output delay time
Serial I/O output valid time
Serial I/O clock output rising time
Serial I/O clock output falling time
CMOS output rising time (Note)
CMOS output falling time (Note)
Limits
Min.
Typ.
tC(SCLK)/2–50
tC(SCLK)/2–50
–30
Notes: Pins XOUT, D0+, D0-, D1+, D2-, D2+, D2- are excluded.
Unit
Max.
ns
ns
350 ns
ns
50
ns
50
ns
50
ns
50
ns
Measured output pin
100 pF
CMOS output
Fig. 168 Output switching characteristics measurement circuit
Rev.3.00 Oct 15, 2006 page 137 of 147
REJ03B0193-0300