HD64F3644H Renesas Electronics America, HD64F3644H Datasheet - Page 104

• Manufacturer Part Number: HD64F3644H
• Description: IC H8 MCU FLASH 32K 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644H

• 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: -20°C ~ 75°C
• Package / Case: 64-QFP
• Package: 64PQFP
• Family Name: H8
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 45
• Interface Type: SCI
• On-chip Adc: 8-chx8-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 4 Clock Pulse Generators
4.2
Clock pulses can be supplied to the system clock divider either by connecting a crystal or ceramic
resonator, or by providing external clock input.
Connecting a Crystal Resonator: Figure 4.2 shows a typical method of connecting a crystal
resonator.
Figure 4.3 shows the equivalent circuit of a crystal resonator. An oscillator having the
characteristics given in table 4.1 should be used.
Table 4.1
Frequency
R
C
Rev. 6.00 Sep 12, 2006 page 82 of 526
REJ09B0326-0600
S
0
(max)
(max)
OSC
System Clock Generator
Crystal Resonator Parameters
1
Figure 4.2 Typical Connection to Crystal Resonator
Figure 4.3 Equivalent Circuit of Crystal Resonator
OSC
OSC
1
2
2 MHz
500
7 pF
L
S
R
f
C
C
C
S
1
2
4 MHz
100
7 pF
C
0
R = 1 M
C = C = 12 pF ±20%
1
f
R
2
S
8 MHz
50
7 pF
±20%
10 MHz
30
7 pF
OSC
2