HD404318 Datasheet, PDF (65/68 Pages) Hitachi Semiconductor – 4-bit HMCS400-series microcomputer

HD404318 Series
SCK
t _SCKf
V_CC – 2.0 V (0.8V_CC )*
0.8 V (0.2V_CC)*
t _DSO
SO
SI
t _Scyc
t _SCKL
t _SCKr
t _SCKH
V_CC – 2.0 V
0.8 V
t _SSI
t _HSI
0.8V _CC
0.2V_CC
Note:
*V_CC-2.0V and 0.8V are the threshold voltages for transmit clock output.
0.8V_CC and 0.2V_CC are the threshold voltages for transmit clock input.
Figure 55 Serial Interface Timing
Test
point
C=
30 pF
V_CC
R_L = 2.6 kΩ
R=
12 kΩ
Hitachi
1S2074
or equivalent
Figure 56 Timing Load Circuit
63