HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 1365

• 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
SCKCR—System Clock Control Register
Bit
Initial value
Read/Write
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Note: * Subclock functions (subactive mode, subsleep mode, and watch mode) are available in the
U-mask and W-mask versions, and H8S/2635 Group only.
These functions cannot be used with the other versions.
φ Clock Output Disable
DDR
PSTOP
Hardware standby mode
Software standby mode,
watch mode*, and direct transition
Sleep mode and subsleep mode*
High-speed mode, medium-speed
mode, and subactive mode*
PSTOP
R/W
7
0
Frequency Multiplication Factor Switching Mode Select
0 Specified multiplication factor is valid after transition to software
1 Specified multiplication factor is valid immediately after STC
⎯
⎯
6
0
standby mode, watch mode*, or subactive mode*
bits are rewritten
⎯
⎯
5
0
System Clock Select
0
1
⎯
⎯
4
0
0
⎯
High impedance
High impedance
High impedance
High impedance
0
1
0
1
⎯
0
1
0
1
0
1
STCS
R/W
3
0
Bus master in high-speed mode
Medium-speed clock is φ/2
Medium-speed clock is φ/4
Medium-speed clock is φ/8
Medium-speed clock is φ/16
Medium-speed clock is φ/32
⎯
H'FDE6
SCK2
1
0
High impedance
Fixed high
φ output
φ output
R/W
2
0
Appendix B Internal I/O Register
SCK1
R/W
1
0
1
1
High impedance
Fixed high
Fixed high
Fixed high
SCK0
R/W
Page 1315 of 1458
0
0
System