HD64F2638F20J Datasheet, PDF (974/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 22B Clock Pulse Generator
(H8S/2639 Group, H8S/2635 Group)
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
22B.7 Subclock Divider
The subclock divider divides the input clock into 1/128 to generate φSUB.
22B.8 Note on Resonator
Since various characteristics related to the resonator are closely linked to the user’s board design,
thorough evaluation is necessary on the user’s part, for both the mask versions and
F-ZTAT versions, using the resonator connection examples shown in this section as a guide. As
the resonator circuit ratings will depend on the floating capacitance of the resonator and the
mounting circuit, the ratings should be determined in consultation with the resonator
manufacturer. The design must ensure that a voltage exceeding the maximum rating is not applied
to the oscillator pin.
Page 924 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010