Usage Note; Timing Chart; Clock Timing; Figure 22.4 Connection Of Vcl Capacitor - Renesas H8S/2111B Hardware Manual

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.
22.7

Timing Chart

22.7.1

Clock Timing

The clock timings are shown below.
Vcc power supply
Bypass
capacitor
10 µF 0.01 µF
< 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

φ

Figure 22.5 System Clock Timing

VCL
VSS
t
cyc
t t
CH Cf
t t
CL Cr
Rev. 1.00, 05/04, page 529 of 544