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SH7243 Datasheet(PDF) 123 Page - Renesas Technology Corp

Part # SH7243
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family
PDF  1726 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7243 Datasheet(HTML) 123 Page - Renesas Technology Corp

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Section 4 Clock Pulse Generator (CPG)
Rev. 1.00 Jun. 26, 2008 Page 93 of 1692
REJ09B0393-0100
4.8.3
Handling of pins when a Ceramic Resonator is not Connected (the Internal CPG is
Selected or the USB is Not in Use)
When a ceramic resonator is not connected, connect the USBEXTAL pin to ground (Vss) and
leave the USBEXTAL pin open-circuit as shown in Figure 4.8. Possible clock frequencies for
input to EXTAL are fixed to 12 MHz.
USBEXTAL
USBXTAL
Open state
Figure 4.8 Handling of Pins when a Ceramic Resonator is not Connected



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