E202075_HD404889 Datasheet, PDF (189/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
During Serial Clock Input
Item
Symbol
Serial clock cycle time t_Scyc
Serial clock high-level t_SCKH
width
Serial clock low-level t_SCKL
width
Serial clock rise time
Serial clock fall time
Serial output data
delay time
t_{SC Kr}
t_SCKf
t_DSO
Serial input data setup t_SSI
time
Serial input data hold t_HSI
time
Note: 1. See figure 107.
Pins
SCK
SCK
SCK
SCK
SCK
SO
SI
SI
min.
1
0.4
0.4
—
—
—
200
200
typ. max.
——
——
——
— 100
— 100
— 300
——
——
Unit
t_cyc
t_Scyc
Test conditions
Notes
1
1
t_Scyc
1
ns
1
ns
1
ns See load in figure 108 1
ns
1
ns
1
OSC1
VCC-0.3V
0.3V
tCPr
1/fCP
tCPH
tCPL
tCPf
Figure 104 External Clock Input Waveform
INT0 , INT1, EVNB, EVND, WU0 to WU3
0.9VCC
tIH
tIL
0.1VCC
Figure 105 Interrupt Timing
187