HD404818 Datasheet, PDF (97/100 Pages) Hitachi Semiconductor – 16-digit LCD driver

SCK
t _SCKf
V_CC – 1.0 V (0.9V_CC )*
0.4 V (0.1V_CC) *
SO
t _Scyc
t _SCKL
t _SCKr
t _DSO
t _SCKH
V_CC – 1.0 V
0.4 V
SI
t _SSI
t _HSI
0.9V _CC
0.1V_CC
Note: * V_CC – 1.0 V and 0.4 V are the threshold voltages for transmit clock output.
0.9V_CC and 0.1V_CC are the threshold voltages for transmit clock input.
Figure 51 Timing of Serial Interface
Test
point
C
30 pF
V_CC
R_L= 2.6 kΩ
R
12 kΩ
1S2074 H
or equivalent
HD404818 Series
After 8 pulses
are input
t _SCKHD
Figure 52 Timing Load Circuit
95