HD64F7047FW40V Renesas Electronics America, HD64F7047FW40V Datasheet - Page 95

• 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: -

4.1.2
External Clock Input Method
Figure 4.4 shows an example of an external clock input connection. In this case, make the external
clock high level to stop it in standby mode. During operation, make the external input clock
frequency 4 to 12.5 MHz.
When leaving the XTAL pin open, make sure the stray capacitance is less than 10 pF.
Even when inputting an external clock, be sure to wait at least the oscillation stabilization time in
power-on sequence or in releasing standby mode, in order to ensure the PLL stabilization time.
EXTAL
External clock input
XTAL
Open state
Figure 4.4 Example of External Clock Connection
Rev. 2.00, 09/04, page 53 of 720