D12674RVFQ33D Renesas Electronics America, D12674RVFQ33D Datasheet - Page 863

• Manufacturer Part Number: D12674RVFQ33D
• Description: MCU 3V 0K I-TEMP 144-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of D12674RVFQ33D

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: IrDA, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412674RVFQ33D; HD6412674RVFQ33D

This LSI has an on-chip clock pulse generator (CPG) that generates the system clock ( ) and
internal clocks.
The clock pulse generator consists of an oscillator circuit, PLL circuit, and divider.
Figure 21.1 shows a block diagram of the clock pulse generator.
The frequency can be changed by means of the PLL circuit. Frequency changes are made by
software by means of settings in the PLL control register (PLLCR) and the system clock control
register (SCKCR).
21.1
The clock pulse generator has the following registers.
CPG0400A_010020020400
Legend:
PLLCR: PLL system control register
SCKCR: System clock control register
EXTAL
XTAL
System clock control register (SCKCR)
PLL control register (PLLCR)
Register Descriptions
Oscillator
Figure 21.1 Block Diagram of Clock Pulse Generator
Section 21 Clock Pulse Generator
PLL circuit
( 1, 2, 4)
PLLCR
STC0, STC1
Divider
SCKCR
Rev. 3.00 Mar 17, 2006 page 811 of 926
SCK2 to SCK0
Section 21 Clock Pulse Generator
System clock
to
pin
REJ09B0283-0300
Internal clock
to peripheral
modules