LC88F40H0PA Datasheet, PDF (27/32 Pages) Sanyo Semicon Device – For Car Audio Systems 16-bit ETR Microcontroller

LC88F40H0PA/H0PAU/F0PA/F0PAU/D0PA/D0PAU
Power Pin Treatment Condition 1 (VDDCPU, VSS1)
Connect capacitors that meet the following conditions between the VDD1 and VSS1 pins:
• Connect among the VDDCPU and VSS1 pins and the capacitors C1 and C2 with the shortest possible lead wires,
of the same length (L1=L1’, L2=L2’) wherever possible.
• Connect a large-capacity capacitor C1 and a small-capacity capacitor C2 in parallel.
• The capacitance of C2 should be approximately 0.1μF or larger.
• Please mount a suitable capacitor about C1.
• The VDDCPU and VSS1 traces must be thicker than the other traces.
L2
L1
VDDCPU
C1
C2
VSS1
L1’
L2’
Figure 4
Power Pin Treatment Condition 2 (VDDPORT1 to 2, VSS2 to 3)
Connect capacitors that meet the following conditions between the VDDPORT1 to VSS2 and VDDPORT2 to VSS3
pins:
• Connect among the VDDPORT1 to 2 and VSS2 to 3 pins and the capacitor C3 with the shortest possible lead wires,
of the same length (L3=L3’) wherever possible.
• The capacitance of C3 should be approximately 0.1μF or larger.
• The VDDPORT1 to 2 and VSS2 to 3 traces must be thicker than the other traces.
L3
VDDPORT1/
VDDPORT2
C3
VSS2/
VSS3
L3’
Figure 5
No.A1853-27/32