R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 332

• 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: -

Section 6 Bus Controller (BSC)
Page 302 of 1372
Figure 6.94 Example of Timing for Idle Cycle Insertion in Case of Consecutive Read and
Write Accesses to Continuous Synchronous DRAM Space in RAS Down Mode
Precharge-sel
DQMU, DQML
Address bus
Data bus
CKE
CAS
RAS
WE
φ
PALL ACTV READ
(SDWCD = 1, CAS Latency 2)
address
Column
T
p
Continuous synchronous
DRAM space read
address
address
Row
Row
T
r
T
c1
address
Column
T
cl
High
T
c2
Idle cycle
Continuous synchronous
DRAM space write
NOP
T
External address
i
H8S/2426, H8S/2426R, H8S/2424 Group
T
c1
WRIT
T
REJ09B0466-0350 Rev. 3.50
c2
Jul 09, 2010