HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 590

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 17 Clock Pulse Generator
17.3.2
Circuit Configuration
An external clock signal can be input as shown in the examples in figure 17.5. 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.
Rev.3.00 Mar. 26, 2007 Page 548 of 772
REJ09B0355-0300
External Clock Input
EXTAL
XTAL
EXTAL
XTAL
Figure 17.5 External Clock Input (Examples)
(b) Complementary clock input at XTAL pin
(a) XTAL pin left open
Open
External clock input
External clock input