R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 489
R4F24268NVFQV
Manufacturer Part Number
R4F24268NVFQV
Description
MCU 256K FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24268NVZFQV.pdf
(1406 pages)
Specifications of R4F24268NVFQV
Core Processor
H8S/2600
Core Size
16/32-Bit
Speed
33MHz
Connectivity
EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART
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 10x10b, 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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H8S/2426, H8S/2426R, H8S/2424 Group
(3)
In external request mode, an EXDMA transfer cycle is started a minimum of three cycles after a
transfer request is accepted. The next transfer request is accepted after the end of a one-transfer-
unit EXDMA cycle. For external bus space CPU cycles, at least two bus cycles are generated
before the next EXDMA cycle.
If a transfer request is generated for another channel, an EXDMA cycle for the other channel is
generated before the next EXDMA cycle.
The EDREQ pin sensing timing is different for low level sensing and falling edge sensing. The
same applies to transfer request acceptance and transfer start timing.
Figures 8.35 to 8.38 show operation timing examples for various conditions.
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
φ pin
EDREQ
EDRAK
Bus cycle
ETEND
EDA bit
External Request/Cycle Steal Mode/Normal Transfer Mode
Figure 8.35 External Request/Cycle Steal Mode/Normal Transfer Mode
1
Bus release
(No Contention/Dual Address Mode/Low Level Sensing)
EXDMA
read
EXDMA
write
Bus release
3 cycles
EXDMA
Last transfer cycle
read
Section 8 EXDMA Controller (EXDMAC)
EXDMA
write
0
Page 459 of 1372
Bus release
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