HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 582

• Manufacturer Part Number: HD6413007F20
• Description: IC H8 MCU ROMLESS 5V 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD6413007F20

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• 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-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

18. Clock Pulse Generator
18.3
When the oscillator frequency is 5 MHz or higher, the duty adjustment circuit adjusts the duty
cycle of the clock signal from the oscillator to generate φ.
18.4
The prescalers divide the system clock (φ) to generate internal clocks (φ/2 to φ/4096).
18.5
The frequency divider divides the duty-adjusted clock signal to generate the system clock (φ). The
frequency division ratio can be changed dynamically by modifying the value in DIVCR, as
described below. Power consumption in the chip is reduced in almost direct proportion to the
frequency division ratio. The system clock generated by the frequency divider can be output at the
φ pin.
Rev.5.00 Sep. 12, 2007 Page 552 of 764
REJ09B0396-0500
V
STBY
EXTAL
φ (internal or
external)
RES
Note: * t
CC
Duty Adjustment Circuit
Prescalers
Frequency Divider
DEXT
V
IH
includes a 10 t
Figure 18.7 External Clock Output Settling Delay Timing
cyc
RES pulse width (t
t
DEXT
*
RESW
).