HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 683

• Manufacturer Part Number: HD64F3048VTF8
• Description: IC H8 MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048VTF8

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F3048VX8

20.2.2
Circuit Configuration: An external clock signal can be input as shown in the examples in figure
20.5. The external clock is input from the EXTAL pin. If the XTAL pin is left open, the stray
capacitance should not exceed 10 pF. If the stray capacitance at the XTAL pin exceeds 10 pF in
configuration a, use configuration b instead and hold the clock high in standby mode.
External Clock Input
Avoid
C
C
L2
L1
EXTAL
XTAL
EXTAL
XTAL
Figure 20.4 Example of Incorrect Board Design
Figure 20.5 External Clock Input (Examples)
b. Complementary clock input at XTAL pin
Signal A
a. XTAL pin left open
74HC04
Open
Signal B
Rev. 7.00 Sep 21, 2005 page 657 of 878
Section 20 Clock Pulse Generator
XTAL
EXTAL
External clock input
External clock input
H8/3048 Group
REJ09B0259-0700