DF2328BVF25V Renesas Electronics America, DF2328BVF25V Datasheet - Page 238

• Manufacturer Part Number: DF2328BVF25V
• Description: IC H8S MCU FLASH 256K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2328BVF25V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• 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): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: HD64F2328BVF25V

Section 6 Bus Controller
Usage Notes: When DRAM space * is accessed, the ICIS0 and ICIS1 bit settings are disabled. In
the case of consecutive reads between different areas, for example, if the second access is a
DRAM access * , only a T
cycle is inserted, and a T
cycle is not. The timing in this case is shown
p
I
in figure 6.34.
However, in burst access in RAS down mode these settings are enabled, and an idle cycle is
inserted. The timing in this case is shown in figures 6.35 (a) and (b).
Note: * The DRAM interface is not supported in the H8S/2321.
External read
DRAM space read
T
T
T
T
T
T
T
1
2
3
p
r
c1
c2
φ
Address bus
RD
Data bus
Figure 6.34 Example of DRAM Access after External Read
Rev.6.00 Sep. 27, 2007 Page 206 of 1268
REJ09B0220-0600