DF38602RFT10 Renesas Electronics America, DF38602RFT10 Datasheet - Page 101

• Manufacturer Part Number: DF38602RFT10
• Description: MCU 3V 16K 32-QFN
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H SLPr

Specifications of DF38602RFT10

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 10MHz
• Connectivity: I²C, IrDA, SCI, SSU
• Peripherals: POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F38602RFT10; HD64F38602RFT10

4.2.3
Connect an external clock signal to pin OSC1, and leave pin OSC2 open. Figure 4.4 shows a
typical connection. The duty cycle of the external clock signal must be 45 to 55%.
4.2.4
The on-chip oscillator is selected by the E7_2 pin input level during a reset. The methods for
selecting the system clock oscillator and on-chip oscillator are shown in table 4.1. The input level
on the E7_2 pin during a reset is pulled up or down using a resistor according to the selected
oscillator, and fixed on exit from the reset state.
When the on-chip oscillator is selected, a resonator no longer needs to be connected to the OSC1
and OSC2 pins. In such a case, fix the OSC1 pin to GND or leave it open, and leave the OSC2 pin
open.
Notes: 1. When programming or erasing the flash memory, such as performing on-board
Table 4.1
E7_2 Pin Input Level (during Reset)
0
1
2. When the on-chip debugger is connected, the value of the resistor should be high.
External Clock Input Method
On-Chip Oscillator Selection Method
programming, the system clock oscillator must be selected. When the on-chip emulator
is used, even though the on-chip oscillator is selected, connect a resonator or input an
external clock.
When not connected, it is specified according to the selected oscillator.
Methods for Selecting System Clock Oscillator and On-Chip Oscillator
Figure 4.4 Example of External Clock Input
OSC1
OSC2
Oscillator in System Clock Pulse
Generator
On-chip oscillator
System clock oscillator
Open
External clock input
Rev. 3.00 May 15, 2007 Page 67 of 518
Section 4 Clock Pulse Generators
REJ09B0152-0300
OSCF
1
0