R4F24568NVFQV Renesas Electronics America, R4F24568NVFQV Datasheet - Page 1238
R4F24568NVFQV
Manufacturer Part Number
R4F24568NVFQV
Description
MCU 128KKB FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of R4F24568NVFQV
Core Processor
H8S/2600
Core Size
16/32-Bit
Speed
32MHz
Connectivity
EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
48K 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
Eeprom Size
-
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Section 23 Clock Pulse Generator
23.4
The PLL circuit for the USB module takes 8, 12, and 16 MHz clock signals from an oscillator and
generates the 48-MHz clock for the USB module through frequency-multiplication by 3, 4, or 6.
The frequency-multiplication factor is set by bits USSTC1 and USSTC0 in the USPLLCR. For
details on the USPLLCR, see section 23.1.3, USB PLL Control Register (USPLLCR).
When the USB is in use, make settings so that the system clock runs at or above 14 MHz. The
settings listed below (table 23.4) produce a USB dedicated clock at 48 MHz. Operation at other
frequencies cannot be guaranteed.
Table 23.4 Clock Selection when the USB is to be used
Page 1208 of 1392
Input clock frequency
from the oscillator (MHz)
8 MHz
12 MHz
16 MHz
PLL Circuit for the USB Module
USB dedicated clock
(cku: 48 MHz)
EXTAL × 6
EXTAL × 4
EXTAL × 3
System clock (φ)
EXTAL × 2 (16MHz)
EXTAL × 2 (24MHz)
EXTAL × 2 (32MHz)
EXTAL × 1 (16MHz)
H8S/2456, H8S/2456R, H8S/2454 Group
REJ09B0467-0350 Rev. 3.50
Jul 07, 2010
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