R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 257

• Manufacturer Part Number: R4F24268NVFQV
• Description: MCU 256K FLASH 48K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

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: -

H8S/2426, H8S/2426R, H8S/2424 Group
6.7.6
The column address output cycle can be changed from 2 states to 3 states by setting the CAST bit
to 1 in DRAMCR. Use the setting that gives the optimum specification values (CAS pulse width,
etc.) according to the DRAM connected and the operating frequency of this LSI. Figure 6.34
shows an example of the timing when a 3-state column address output cycle is selected.
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
Read
Write
Note: n = 2 to 5
Figure 6.34 Example of Access Timing with 3-State Column Address Output Cycle
Column Address Output Cycle Control
φ
Address bus
RASn (CSn)
UCAS, LCAS
WE (HWR)
OE (RD)
Data bus
WE (HWR)
OE (RD)
Data bus
T
p
Row address
(RAST = 0)
High
High
T
r
T
c1
Column address
T
c2
Section 6 Bus Controller (BSC)
T
c3
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