h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 995

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 22A Clock Pulse Generator (H8S/2636 Group, H8S/2638 Group, H8S/2630 Group)
22A.3.2 External Clock Input
Circuit Configuration
An external clock signal can be input as shown in the examples in figure 22A-6. 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.
In this case, the input clock frequency should be between 4 MHz and 20 MHz.
(a) XTAL pin left open
(b) Complementary clock input at XTAL pin
Figure 22A-6 External Clock Input (Examples)
Rev. 6.00 Feb 22, 2005 page 935 of 1484
REJ09B0103-0600