DF2134AFA20V Renesas Electronics America, DF2134AFA20V Datasheet - Page 735

• Manufacturer Part Number: DF2134AFA20V
• Description: IC H8S/2100 MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2134AFA20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 58
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 80-QFP
• For Use With: 3DK2166 - DEV EVAL KIT H8S/2166
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 23 Clock Pulse Generator
23.9
Clock Selection Circuit
This circuit selects the system clock used in the MCU.
The clock signal generated in the EXTAL/XTAL pin oscillator is selected as the system clock
when MCU is returned from high-speed mode, medium-speed mode, sleep mode, reset state, or
standby mode.
In sub-active mode, sub-sleep mode, and watch mode, the sub-clock signal input from EXCL pin
is selected as the system clock. In these modes, modules such as CPU, TMR0, TMR1, WDT0,
WDT1, and I/O ports operate on the SUB clock. The count clock for each timer is a clock
obtained by dividing the SUB clock.
Rev. 4.00 Jun 06, 2006 page 679 of 1004
REJ09B0301-0400