DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 151

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

Specifications of DS72030W200FPV

• Core Size: 32bit
• Program Memory Size: 32KB
• Cpu Speed: 200MHz
• Digital Ic Case Style: QFP
• No. Of Pins: 240
• Supply Voltage Range: 1.1V To 1.3V
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.6.2
An example of the connection of crystal resonator is shown in figure 4.3.
Place the crystal resonator and capacitors (CL1 and CL2) as close to pins Xin and Xout as
possible. Furthermore, to avoid inductance so that oscillation is correct, use the points where the
capacitors are connected to the crystal resonator in common and do not place wiring patterns close
to these components.
Since the design of the user board is closely connected with the effective characteristics of the
crystal resonator, refer to the example of connection of the crystal resonator that is introduced in
this section and perform thorough evaluation on the user side as well. The rated value of the
crystal resonator will vary with the floating capacitances and so on of the crystal resonator and
mounted circuit, so proceed with decisions on the basis of full discussions with the maker of the
crystal resonator. Ensure that voltages applied to the clock pins do not exceed the maximum rated
values.
Although the feedback resistor is included in this LSI, an external feedback resistor may be
required in some cases. This depends on the characteristics of the crystal resonator.
Set the parameters (of resistors and capacitors) with thorough evaluation on the user side.
4.6.3
In cases where the pins are not in use, fix the level on the Xin pin (pull it up or down, or connect it
to the power-supply or ground level), and leave the Xout pin open state.
In the Case of Using a Crystal Resonator
In the Case of Not Using the Clock Pin
CL1
CL2
Figure 4.3 Example of the Connection of a Crystal Resonator
Crystal
resonator
R
OD
R
OF
Xout
Xin
R
ID
Rev. 3.00 Sep. 28, 2009 Page 119 of 1650
Section 4 Clock Pulse Generator (CPG)
R
IF
This LSI
To internal
sections
REJ09B0313-0300