HD6473837H Renesas Electronics America, HD6473837H Datasheet - Page 104

• Manufacturer Part Number: HD6473837H
• Description: IC H8 MCU OTP 60K 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473837H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 84
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Connecting a Ceramic Oscillator: Figure 4.4 shows a typical method of connecting a ceramic
oscillator.
Notes on Board Design: When generating clock pulses by connecting a crystal or ceramic
oscillator, pay careful attention to the following points.
Avoid running signal lines close to the oscillator circuit, since the oscillator may be adversely
affected by induction currents. (See figure 4.5.)
The board should be designed so that the oscillator and load capacitors are located as close as
possible to pins OSC
To be avoided
OSC
OSC
Figure 4.4 Typical Connection to Ceramic Oscillator
1
and OSC
Figure 4.5 Board Design of Oscillator Circuit
C
C
1
2
1
2
2
.
R
f
C
C
Signal A Signal B
1
2
R = 1 M
C = 30 pF 10%
C = 30 pF 10%
Ceramic oscillator: Murata
1
2
f
OSC
OSC
20%
1
2
87