D13008VXI25V Renesas Electronics America, D13008VXI25V Datasheet - Page 495

• Manufacturer Part Number: D13008VXI25V
• Description: MCU 3V 0K I-TEMP PB-FREE 100-TQF
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of D13008VXI25V

• 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: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

17.2
Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock
signal.
17.2.1
Circuit Configuration: A crystal resonator can be connected as in the example in figure 17.2.
Damping resistance Rd should be selected according to table 17.1 (1), and external capacitances
C
If a crystal resonator with a frequency higher than 20 MHz is connected, the external load
capacitance values in table 17.1 (2) should not exceed 10 [pF]. Also, in order to improve the
accuracy of the oscillation frequency, a thorough study of oscillation matching evaluation, etc.,
should be carried out when deciding the circuit constants.
Table 17.1 (1)
Rd (Ω)
Note: A crystal resonator between 2 MHz and 25 MHz can be used. If the chip is to be operated
Damping
Resistance
Value
L1
and C
at less than 2 MHz, the on-chip frequency divider should be used. (A crystal resonator of
less than 2 MHz cannot be used.)
L2
Oscillator Circuit
Connecting a Crystal Resonator
according to table 17.1 (2). An AT-cut parallel-resonance crystal should be used.
2
1 k
Damping Resistance Value
2 < f ≤ 4 4 < f ≤8 8 < f ≤ 10 10 < f ≤ 13 13 < f ≤ 16 16 < f ≤ 18 18 < f ≤ 25
500
Figure 17.2 Connection of Crystal Resonator (Example)
200
EXTAL
XTAL
0
Rd
Frequency f (MHz)
0
Rev.4.00 Aug. 20, 2007 Page 449 of 638
C
C
L1
L2
0
17. Clock Pulse Generator
0
REJ09B0395-0400
0