D12321VF25V Renesas Electronics America, D12321VF25V Datasheet - Page 763

• 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: -

18.1
The H8S/2329B and H8S/2324S have 32 kbytes of on-chip high-speed static RAM, the H8S/2328
(H8S/2328B in flash memory version), H8S/2327, H8S/2326, H8S/2323, and H8S/2322R have 8
kbytes, and the H8S/2321 and H8S/2320 have 4 kbytes. The RAM is connected to the CPU by a
16-bit data bus, enabling one-state access by the CPU to both byte data and word data. This makes
it possible to perform fast word data transfer.
The on-chip RAM can be enabled or disabled by means of the RAM enable bit (RAME) in the
system control register (SYSCR).
18.1.1
Figure 18.1 shows a block diagram of 32 kbytes of on-chip RAM.
Overview
Block Diagram
Figure 18.1 Block Diagram of RAM (32 kbytes)
H'FFFBFE
H'FF7C00
H'FF7C02
H'FF7C04
Section 18 RAM
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
Rev.6.00 Sep. 27, 2007 Page 731 of 1268
H'FFFBFF
H'FF7C01
H'FF7C03
H'FF7C05
REJ09B0220-0600
Section 18 RAM