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HD6432142 Datasheet(PDF) 780 Page - Renesas Technology Corp

Part # HD6432142
Description  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1177 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432142 Datasheet(HTML) 780 Page - Renesas Technology Corp

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Section 24 Clock Pulse Generator
Rev. 4.00 Sep 27, 2006 page 736 of 1130
REJ09B0327-0400
24.3.2
External Clock Input
Circuit Configuration
An external clock signal can be input as shown in the examples in figure 24.5. If the XTAL pin is
left open, make sure that stray capacitance is no more than 10 pF.
In example (b), make sure that the external clock is held high in standby mode, subactive mode,
subsleep mode, and watch mode.
EXTAL
XTAL
External clock input
Open
(a) XTAL pin left open
EXTAL
XTAL
External clock input
(b) Complementary clock input at XTAL pin
Figure 24.5 External Clock Input (Examples)



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