D12321VF25V Renesas Electronics America, D12321VF25V Datasheet - Page 247

• Manufacturer Part Number: D12321VF25V
• Description: IC H8S/2300 MCU ROMLESS 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12321VF25V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 86
• Program Memory Type: ROMless
• Ram Size: 4K 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: -
• Program Memory Size: -

6.11.4
External bus release can be performed on completion of an external bus cycle. The RD signal and
the DRAM interface * RAS and CAS signals remain low until the end of the external bus cycle.
Therefore, when external bus release is performed, the RD, RAS, and CAS signals may change
from the low level to the high-impedance state.
Note: * The DRAM interface is not supported in the H8S/2321.
6.12
In a reset, the chip, including the bus controller, enters the reset state at that point, and any
executing bus cycle is discontinued.
External Bus Release Usage Note
Resets and the Bus Controller
Rev.6.00 Sep. 27, 2007 Page 215 of 1268
Section 6 Bus Controller
REJ09B0220-0600