HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 129

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Input of External Clock Signal
Circuit Configuration: An external clock signal can be input as shown in the examples in figure
6.11. In example (b) in figure 6.11, the external clock signal should be kept high during standby.
If the XTAL pin is left open, make sure the stray capacitance does not exceed 10 pF.
Not allowed
Figure 6.10 Notes on Board Design around External Crystal
C
C
EXTAL
EXTAL
L2
L1
XTAL
XTAL
(a) Connections with XTAL pin left open
(b) Connections with inverted clock input at XTAL pin
Figure 6.11 External Clock Input (Example)
Signal A
74HC04
Open
Signal B
External clock input
External clock input
XTAL
EXTAL
97