DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 186

• Manufacturer Part Number: DF2398TE20
• Description: IC H8S MCU FLASH 256K 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2398TE20; HD64F2398TE20

Rev.6.00 Oct.28.2004 page 156 of 1016
REJ09B0138-0600H
CAS, LCAS
CAS, LCAS
Data bus
Data bus
Address
Address
EXTAL
EXTAL
Figure 6-35 (a) Example of Idle Cycle Operation in RAS Down Mode (ICIS1 = 1)
Figure 6-35 (b) Example of Idle Cycle Operation in RAS Down Mode (ICIS0 = 1)
HWR
RAS
RAS
RD
RD
Address bus
Figure 6-34 Example of DRAM Access after External Read
T
T
Data bus
p
p
DRAM space read
DRAM space read
RD
T
T
ø
r
r
T
T
c1
c1
T
1
External read
T
T
c2
c2
T
2
T
T
I
I
T
3
External read
External read
T
T
T
1
1
p
DRAM space read
T
T
T
2
2
r
T
T
T
c1
3
3
Idle cycle
Idle cycle
DRAM space read
DRAM space write
T
T
T
cI
cI
c2
T
T
c1
c1
T
T
c2
c2