R4F24568NVRFQV Renesas Electronics America, R4F24568NVRFQV Datasheet - Page 268
R4F24568NVRFQV
Manufacturer Part Number
R4F24568NVRFQV
Description
MCU 256KB FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of R4F24568NVRFQV
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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H8S/2456, H8S/2456R, H8S/2454 Group
Section 6 Bus Controller (BSC)
6.7.11
Burst Operation
With DRAM, in addition to full access (normal access) in which data is accessed by outputting a
row address for each access, a fast page mode is also provided which can be used when making
consecutive accesses to the same row address. This mode enables fast (burst) access of data by
simply changing the column address after the row address has been output. Burst access can be
selected by setting the BE bit to 1 in DRAMCR.
(1)
Burst Access (Fast Page Mode)
Figures 6.42 and 6.43 show the operation timing for burst access. When there are consecutive
access cycles for DRAM space, the CAS signal and column address output cycles (two states)
continue as long as the row address is the same for consecutive access cycles. The row address
used for the comparison is set with bits MXC2 to MXC0 in DRAMCR.
Page 238 of 1392
REJ09B0467-0350 Rev. 3.50
Jul 07, 2010
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