RL78/G1P
CHAPTER 5 CLOCK GENERATOR
R01UH0895EJ0100 Rev.1.00
125
Nov 29, 2019
5.7 Resonator and Oscillator Constants
A list of the resonators for which the operation has most recently been verified and their oscillation constants (for
reference) is provided on the page for the corresponding product at the Renesas Web site (http://www.renesas.com).
Cautions 1. The constants for these oscillator circuits are reference values based on specific environments
set up for evaluation by the manufacturers. For actual applications, request evaluation by the
manufacturer of the oscillator circuit mounted on a board. Furthermore, if you are switching from
a different product to this microcontroller, and whenever you change the board, again request
evaluation by the manufacturer of the oscillator circuit mounted on the new board.
2. The oscillation voltage and oscillation frequency only indicate the oscillator characteristic. Use
the RL78 microcontroller so that the internal operation conditions are within the specifications of
the DC and AC characteristics.
Figure 5-15. Example of External Circuit
(a) X1 oscillation
C1
X2
X1
C2
Rd
V
SS