HD64F3644DV Renesas Electronics America, HD64F3644DV Datasheet - Page 106

• Manufacturer Part Number: HD64F3644DV
• Description: IC H8/3644 MCU FLASH 64QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 4 Clock Pulse Generators
External Clock Input Method: Connect an external clock signal to pin OSC
OSC
Frequency
Duty cycle
4.3
Connecting a 32.768-kHz Crystal Resonator: Clock pulses can be supplied to the subclock
divider by connecting a 32.768-kHz crystal resonator, as shown in figure 4.7. Follow the same
precautions as noted under section 4.2, Notes on Board Design.
Rev. 6.00 Sep 12, 2006 page 84 of 526
REJ09B0326-0600
2
open. Figure 4.6 shows a typical connection.
Subclock Generator
Figure 4.7 Typical Connection to 32.768-kHz Crystal Resonator
OSC
OSC
Figure 4.6 External Clock Input (Example)
1
2
X
X
1
2
Oscillator Clock (
45% to 55%
Open
C
C
1
2
OSC
)
C = C
1
External clock input
2
= 15 pF (typ.)
1
, and leave pin