R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 254

• 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)
6.7.4
Table 6.7 shows the pins used for DRAM interfacing and their functions.
Table 6.7
Page 224 of 1372
Pin
HWR
CS2
CS3
CS4
CS5
UCAS
LCAS
RD, OE
WAIT
A15 to A0
D15 to D0
Pins Used for DRAM Interface
DRAM Interface Pins
With DRAM
Setting
WE
RAS2
RAS3
RAS4
RAS5
UCAS
LCAS
OE
WAIT
A15 to A0
D15 to D0
Name
Write enable
Row address strobe 2
Row address strobe 3
Row address strobe 4
Row address strobe 5
Upper column address
strobe
Lower column address
strobe
Output enable
Wait
Address pins
Data pins
Output
Output
Output
Output
Output
Output
Output
Output
Input
Output
I/O
I/O
Function
Write enable for DRAM space
access
Row address strobe when area
2 is designated as DRAM space
or row address strobe when
areas 2 to 5 are designated as
continuous DRAM space
Row address strobe when area
3 is designated as DRAM space
Row address strobe when area
4 is designated as DRAM space
Row address strobe when area
5 is designated as DRAM space
Upper column address strobe for
16-bit DRAM space access or
column address strobe for 8-bit
DRAM space access
Lower column address strobe
signal for 16-bit DRAM space
access
Output enable signal for DRAM
space access
Wait request signal
Row address/column address
multiplexed output
Data input/output pins
H8S/2426, H8S/2426R, H8S/2424 Group
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010