R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 273

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

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

H8S/2427, H8S/2427R, H8S/2425 Group
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
φ
Address bus
RASn (CSn)
UCAS, LCAS
RD
OE
Data bus
Note: n = 2 to 5
Note, however, that the RAS signal will go high if:
⎯ a refresh operation is initiated in the RAS down state
⎯ self-refreshing is performed
⎯ the chip enters software standby mode
⎯ the external bus is released
⎯ the RCDM bit or BE bit is cleared to 0
If a transition is made to the all-module-clocks-stopped mode in the RAS down state, the clock
will stop with RAS low. To enter the all-module-clocks-stopped mode with RAS high, the
RCDM bit must be cleared to 0 before executing the SLEEP instruction.
Figure 7.44 Example of Operation Timing in RAS Down Mode
T
Row address
p
DRAM space read
T
r
(RAST = 0, CAST = 0)
Column address 1
T
c1
T
c2
External address
Normal space
T
1
read
T
2
Section 7 Bus Controller (BSC)
Column address 2
DRAM space
T
c1
read
Page 243 of 1448
T
c2