HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 789

• Manufacturer Part Number: HD64F2638F20J
• Description: IC H8S MCU FLASH 256K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2638F20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
20.1.2
The on-chip RAM is controlled by SYSCR. Table 20-1 shows the address and initial value of
SYSCR.
Table 20-1 RAM Register
Name
System control register
Note: * Lower 16 bits of the address.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Register Configuration
Figure 20-1 (c) Block Diagram of RAM (H8S/2635 Group)
H'FFD800
H'FFD802
H'FFD804
H'FFEFBE
H'FFFFC0
H'FFFFFE
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
Abbreviation
SYSCR
R/W
R/W
H'FFEFBF
H'FFFFC1
H'FFD801
H'FFD803
H'FFD805
H'FFFFFF
H'01
Initial Value
Address *
H'FDE5
Section 20 RAM
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