DF2367VF33 Renesas Electronics America, DF2367VF33 Datasheet - Page 241

• Manufacturer Part Number: DF2367VF33
• Description: MCU 3V 384K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2367VF33

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: I²C, IrDA, SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2367VF33; HD64F2367VF33

• RAS Up Mode
φ
Address bus
RASn (CSn)
UCAS, LCAS
RD
OE
Data bus
Note: n = 2, 3
To select RAS up mode, clear the RCDM bit to 0 in DRAMCR. Each time access to DRAM
space is interrupted and another space is accessed, the RAS signal goes high again. Burst
operation is only performed if DRAM space is continuous. Figure 6.32 shows an example of
the timing in RAS up mode.
Figure 6.32 Example of Operation Timing in RAS Up Mode
T
Row address
p
DRAM space read
T
r
(RAST = 0, CAST = 0)
Column address 1 Column address 2
T
c1
T
c2
Rev.6.00 Mar. 18, 2009 Page 181 of 980
T
DRAM space
c1
read
Section 6 Bus Controller (BSC)
T
c2
External address
Normal space
T
1
REJ09B0050-0600
read
T
2