HD64F7047F50 Renesas Electronics America, HD64F7047F50 Datasheet - Page 94

• Manufacturer Part Number: HD64F7047F50
• Description: IC SUPERH MCU FLASH 256K 100QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7047r

Specifications of HD64F7047F50

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

4.1
Clock pulses can be supplied from a connected crystal resonator or an external clock.
4.1.1
Circuit Configuration: A crystal resonator can be connected as shown in figure 4.2. Use the
damping resistance (Rd) listed in table 4.1. Use an AT-cut parallel-resonance type crystal
resonator that has a resonance frequency of 4 to 12.5 MHz. It is recommended to consult crystal
dealer concerning the compatibility of the crystal resonator and the LSI.
Table 4.1
Crystal Resonator: Figure 4.3 shows an equivalent circuit of the crystal resonator. Use a crystal
resonator with the characteristics listed in table 4.2.
Table 4.2
Rev. 2.00, 09/04, page 52 of 720
Frequency (MHz)
Rd (Ω)
Frequency (MHz)
Rs max (Ω)
C
0
max (pF)
Oscillator
Connecting a Crystal Resonator
Damping Resistance Values
Crystal Resonator Characteristics
EXTAL
XTAL
Figure 4.2 Connection of the Crystal Resonator (Example)
XTAL
Figure 4.3 Crystal Resonator Equivalent Circuit
R
d
4
500
4
120
7
L
C
C
L1
L2
C
C
L
0
C
L1
8
200
8
80
7
R s
= C
AT-cut parallel-resonance type
L2
= 18–22 pF (Recommended value)
EXTAL
10
0
10
60
7
12.5
0
12.5
50
7