PD703223_15 Datasheet, PDF (24/41 Pages) Renesas Technology Corp – V850ES/GB1TM VENUS 32-/16-bit Single-Chip Microcontroller with CAN Interface

µPD703223, µPD703224, µPD703225, µPD703226
(b) RC Oscillator connection: µPD703225 (A), µPD703226 (A)
Figure 2-3: RC Oscillator Connection
CL2
R
CL1
C
Cautions: 1. External clock to main clock or subsystem clock oscillator input is prohibited.
2. When using the main system clock or the sub system clock oscillator, wire as fol-
lows in the area enclosed by the broken lines in the above figures to avoid an
adverse effect from wiring capacitance.
• Keep the wiring length as short as possible.
• Do not cross the wiring with the other signal lines.
• Do not route the wiring near a signal line through which a high fluctuating
current flows.
• Always make the ground point of the oscillator capacitor the same potential
as V_SS.
• Do not ground the capacitor to a ground pattern through which a high cur-
rent flows.
• Do not fetch signals from the oscillator.
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DATA SHEET U15870EE1V1DS00