HD6413008VX25 Renesas Electronics America, HD6413008VX25 Datasheet - Page 496

• Manufacturer Part Number: HD6413008VX25
• Description: MCU 5V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD6413008VX25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6413008VTE25; HD6413008VTE25

17. Clock Pulse Generator
Table 17.1 (2)
External Capacitance Value
Frequency f (MHz)
C
Crystal Resonator: Figure 17.3 shows an equivalent circuit of the crystal resonator. The crystal
resonator should have the characteristics listed in table 17.2.
Table 17.2 Crystal Resonator Parameters
Frequency (MHz)
Rs max (Ω)
Co (pF)
Use a crystal resonator with a frequency equal to the system clock frequency (φ).
Notes on Board Design: When a crystal resonator is connected, the following points should be
noted:
Other signal lines should be routed away from the oscillator circuit to prevent induction from
interfering with correct oscillation. See figure 17.4.
When the board is designed, the crystal resonator and its load capacitors should be placed as close
as possible to the XTAL and EXTAL pins.
Rev.4.00 Aug. 20, 2007 Page 450 of 638
REJ09B0395-0400
L1
XTAL
= C
L2
(pF)
External Capacitance Values
Figure 17.3 Crystal Resonator Equivalent Circuit
2
500
L
4
120
5 V Version
20 < f ≤ 25
10
C
8
80
L
10
70
2 ≤ f ≤ 20
10 to 22
C
0
7 pF max
12
60
AT-cut parallel-resonance type
16
50
3 V Version
2 ≤ f ≤ 16
22
Rs
18
40
20
40
16 ≤ f ≤ 25
10
EXTAL
25
40