HD64F3687GFP Renesas Electronics America, HD64F3687GFP Datasheet - Page 108

• Manufacturer Part Number: HD64F3687GFP
• Description: IC H8 MCU FLASH 56K 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3687GFP

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 56KB (56K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 5 Clock Pulse Generators
5.4
5.4.1
Resonator characteristics are closely related to board design and should be carefully evaluated by
the user, referring to the examples shown in this section. Resonator circuit constants will differ
depending on the resonator element, stray capacitance in its interconnecting circuit, and other
factors. Suitable constants should be determined in consultation with the resonator element
manufacturer. Design the circuit so that the resonator element never receives voltages exceeding
its maximum rating.
5.4.2
When using a crystal resonator (ceramic resonator), place the resonator and its load capacitors as
close as possible to the OSC
resonator circuit to prevent induction from interfering with correct oscillation (see figure 5.11).
Rev.5.00 Nov. 02, 2005 Page 74 of 500
REJ09B0027-0500
Usage Notes
Note on Resonators
Notes on Board Design
Figure 5.11 Example of Incorrect Board Design
1
Avoid
and OSC
OSC
OSC
2
pins. Other signal lines should be routed away from the
1
2
Signal A
Signal B
C
C
1
2