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HD404356 Datasheet, PDF (97/100 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer | |||
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HD404358 Series
SCK
t SCKf
VCC â 0.5 V (0.8VCC )*
0.4 V (0.2VCC)*
t DSO
SO
SI
t Scyc
t SCKL
t SCKr
t SCKH
VCC â 0.5 V
0.4 V
t SSI
t HSI
0.7V CC
0.3VCC
Note: *VCC â 0.5 V and 0.4 V are the threshold voltages for transmit clock output, and
0.8VCC and 0.2VCC are the threshold voltages for transmit clock input.
Figure 81 Serial Interface Timing
Test
point
C=
30 pF
VCC
RL = 2.6 kâ¦
R=
12 kâ¦
Hitachi
1S2074
or equivalent
Figure 82 Timing Load Circuit
97
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