Renesas H8S/2111B Manual de usuario Pagina 563

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Rev. 1.00, 05/04, page 529 of 544
22.6 Usage Note
The method of connecting an external capacitor is shown in figure 22.4. Connect the system
power supply to the VCL pin together with the VCC pins.
VCL
VSS
0.01 µF10 µF
Bypass
capacitor
Vcc power supply
< Vcc = 3.0 V to 3.6 V >
Connect the Vcc power supply to the chip's VCL pin in the same way as
the VCC pins.
It is recommended that a bypass capacitor be connected to the power
supply pins. (Values are reference values.)
Figure 22.4 Connection of VCL Capacitor
22.7 Timing Chart
22.7.1 Clock Timing
The clock timings are shown below.
t
CH
t
cyc
t
Cf
t
CL
t
Cr
φ
Figure 22.5 System Clock Timing
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