HD64F7047FW40V Renesas Electronics America, HD64F7047FW40V Datasheet - Page 97

• Manufacturer Part Number: HD64F7047FW40V
• Description: MCU 5V 256K I-TEMP,PB-FREE 100-Q
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7047r

Specifications of HD64F7047FW40V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 40MHz
• 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: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

4.3
4.3.1
A sufficient evaluation at the user’s site is necessary to use the LSI, by referring the resonator
connection examples shown in this section, because various characteristics related to the crystal
resonator are closely linked to the user’s board design. As the resonator circuit constants will
depend on the resonator and the floating capacitance of the mounting circuit, the component value
should be determined in consultation with the resonator manufacturer. Ensure that a voltage
exceeding the maximum rating is not applied to the oscillator pin.
4.3.2
When using a crystal oscillator, place the crystal oscillator and its load capacitors as close as
possible to the XTAL and EXTAL pins. Do not route any signal lines near the oscillator circuitry
as shown in figure 4.5. Otherwise, correct oscillation can be interfered by induction.
Measures against radiation noise are taken in this LSI. If radiation noise needs to be further
reduced, usage of a multi-layer printed circuit board with ground planes is recommended.
Usage Notes
Note on Crystal Resonator
Notes on Board Design
Figure 4.5 Cautions for Oscillator Circuit System Board Design
Avoid
C
C
L2
L1
Signal A Signal B
XTAL
EXTAL
This LSI
Rev. 2.00, 09/04, page 55 of 720