R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 294

• 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
Section 7 Bus Controller (BSC)
7.8.9
Precharge State Count
When the interval specification from the PALL command to the next ACTV/REF command
cannot be satisfied, from one to four T
states can be selected by setting bits TPC1 and TPC0 in
p
DRACCR. Set the optimum number of T
cycles according to the synchronous DRAM connected
p
and the operating frequency of this LSI. Figure 7.59 shows the timing when two Tp states are
inserted.
Page 264 of 1448
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010