R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 1198
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R4F24278NVFQU
Manufacturer Part Number
R4F24278NVFQU
Description
MCU 512K/48K 2.7-5.5V 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24278NVFQU.pdf
(1482 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R4F24278NVFQU
Manufacturer:
REALTEK
Quantity:
2 300
Company:
Part Number:
R4F24278NVFQU
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 23 Flash Memory
23.13
It is possible to switch between user ROM and user boot ROM. However, the following procedure
is required because the start addresses of these MATs are allocated to the same address 0.
(Switching to the user boot ROM disables programming and erasing. Programming of the user
boot ROM should take place in boot mode or programmer mode.)
1. Memory MAT switching by the FMMS bit in FLMMATS should always be executed from the
2. When accessing the memory MAT immediately after switching the memory MATs by
3. If an interrupt request has occurred during memory MAT switching, there is no guarantee of
4. After the memory MATs have been switched, take care because the interrupt vector tables will
5. The size of the user ROM is different from that of the user boot ROM. Addresses which
Page 1168 of 1448
on-chip RAM.
modifying the FMMS bit in FLMMATS from the on-chip RAM, similarly execute four NOP
instructions in the on-chip RAM (this prevents access to the flash memory during memory
MAT switching).
which memory MAT is accessed. Always mask the maskable interrupts before switching
memory MATs. In addition, configure the system so that NMI interrupts do not occur during
memory MAT switching.
also have been switched.
exceed the size of the 16-Kbyte user boot ROM area should not be accessed. If a user boot
ROM area of a size greater than 16 Kbytes is accessed, data is read as an undefined value.
Switching between User ROM and User Boot ROM
H8S/2427, H8S/2427R, H8S/2425 Group
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
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