HD64F7047F50 Renesas Electronics America, HD64F7047F50 Datasheet - Page 98

• 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: -

A circuitry shown in figure 4.6 is recommended as an external circuitry around the PLL. Place
oscillation stabilization capacitor C1 close to the PLLCAP pin, and ensure that no other signal
lines cross this line. Separate PLLVcL and PLLVss circuit against Vcc and Vss circuit from the
board power supply source, and be sure to insert bypass capacitors CB and CPB close to the pins.
Electromagnetic waves are radiated from an LSI in operation. This LSI has an electromagnetic
peak in the harmonics band whose primary frequency is determined by the lower frequency
between the system clock (φ) and peripheral clock (Pφ). For example, when φ = 50 MHz and Pφ =
40 MHz, the primary frequency is 40 MHz. If this LSI is used adjacent to a device sensitive to
electromagnetic interference, e.g. FM/VHF band receiver, a printed circuit board of more than
four layers with planes exclusively for system ground is recommended.
Rev. 2.00, 09/04, page 56 of 720
Note: * CB and CPB are laminated ceramic type.
Figure 4.6 Recommended External Circuitry Around the PLL
PLLCAP
PLLV
PLLV
V
V
CC
CL
SS
SS
R1: 3kΩ
CPB = 0.47 µF *
CB = 0.47 µF *
C1: 470 pF
(Values are recommended values.)