HD404654 Datasheet, PDF (105/109 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

RESET
HD404654 Series
0.9 V_CC
0.1 V_CC
t_RSTL
t_RSTr
Figure 83 Reset Timing
STOPC
0.9 V_CC
0.1 V_CC
t_STPL
t_STPr
Figure 84 STOPC Timing
SCK ₁
SO ₁
t _SCKf
V_CC – 1.0 V (0.9 V_CC)*
0.4 V (0.1 V_CC)*
t _DSO
SI ₁
t _Scyc
t _SCKL
t _SCKr
t _SCKH
V_CC – 1.0 V
0.4 V
t _SSI
t _HSI
0.9 V _CC
0.1 V _CC
Note: * V_CC – 1.0 V and 0.4 V are the threshold voltages for transmit clock output.
0.9 V_CC and 0.1 V_CC are the threshold voltages for transmit clock output.
Figure 85 Serial Interface Timing
105