R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 1237

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24278NVFQU

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, Smart Card, SPI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

H8S/2427, H8S/2427R, H8S/2425 Group
This LSI has an on-chip clock pulse generator (CPG) that generates the system clock (
internal clocks. The clock pulse generator consists of an oscillator circuit, a system-clock PLL
circuit and a divider.
Figure 25.1 shows a block diagram of the clock pulse generator.
The frequency of the system clock from the oscillator can be changed by means of the system-
clock PLL circuit and divider. Frequency changes are made by software by means of settings in
the PLL control register (PLLCR).
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
Legend:
PLLCR: PLL control register
EXTAL
XTAL
Oscillator
Figure 25.1 Block Diagram of Clock Pulse Generator
Section 25 Clock Pulse Generator
System-clock
PLL circuit
(×1, 2)
STC0, STC1
PLLCR
Divider
System clock
to φ pin
Section 25 Clock Pulse Generator
Internal clock
to peripheral
modules
Page 1207 of 1448
φ
) and