HD404669 Datasheet, PDF (138/142 Pages) Hitachi Semiconductor – Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

HD404669 Series
RESET
0.9 V_CC
0.1 V_CC
t_RSTH
t_RSTf
Figure 93 Reset Timing
STOPC
0.9 V_CC
0.1 V_CC
t_STPL
t_STPr
Figure 94 STOPC Timing
t_SCKf
V_CC – 0.5 V (0.9 V_CC) ^*
SCK₁
0.4 V (0.1 V_CC) ^*
SO₁
SI₁
t_SCKL
t_Scyc
t_SCKr
t_SCKH
t_DSO
V_CC – 0.5 V
0.4 V
t_SSI
t_HSI
0.9 V_CC
0.1V_CC
Note: * V_CC – 0.5 V and 0.4 V are the threshold voltages during serial clock output.
0.9 V_CC and 0.1 V_CC are the threshold voltages during serial clock input.
Figure 95 Serial Interface Timing
138