R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 1240

• 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

Section 25 Clock Pulse Generator
25.1.2
PLLCR sets the frequency multiplication factor used by the system-clock PLL circuit.
Care must be taken when writing to this register. For details, see section 25.3, System-Clock PLL
Circuit and Divider.
Page 1210 of 1448
Bit
7 to 4
3
2
1
0
Bit Name
⎯
⎯
⎯
STC1
STC0
PLL Control Register (PLLCR)
Initial Value
All 0
0
0
0
0
R/W
⎯
R/W
⎯
R/W
R/W
Description
Reserved
These bits are always read as 0 and cannot be
modified.
Reserved
This bit can be read from or written to. However,
the write value should always be 0.
Reserved
This bit is always read as 0 and cannot be
modified.
Frequency Multiplication Factor for System-
Clock PLL Circuit and System Clock Divider
Setting
The STC bits specify the frequency
multiplication factor and dividing ratio with
respect to the oscillator frequency.
00: × 1
01: × 2
10: Setting prohibited
11: 1/2
H8S/2427, H8S/2427R, H8S/2425 Group
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010