LC88F5LA4ACS Datasheet, PDF (29/33 Pages) Sanyo Semicon Device – FROM 96K byte, RAM 6K byte on-chip 16-bit 1-chip Microcontroller

LC88F5LA4ACS
Power Pin Treatment Conditions 1 (VDD1, VSS1)
Connect capacitors that meet the following conditions between the VDD1 and VSS1 pins:
• Connect among the VDD1 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.
• The VDD1 and VSS1 traces must be thicker than the other traces.
L2
L1
VSS1
C1
C2
VDD1
L1’
L2’
Power Pin Treatment Conditions 2 (VDD(2, 3), VSS(2))
Connect capacitors that meet the following condition between the VDD(2) and VSS(2), VDD(3) and VSS(2) pins:
• Connect among the VDD(2, 3) and VSS(2) 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 VDD(2, 3) and VSS(2) traces must be thicker than the other traces.
L3
VSS(2)
C3
VDD(2, 3)
L3’
Power Pin Treatment Conditions 3 (VDDA, VSSA)
Connect capacitors that meet the following condition between the VDDA and VSSA pins:
• Connect among the VDDA and VSSA pins and the capacitor C4 with the shortest possible lead wires,
of the same length (L4=L4') wherever possible.
• The capacitance of C4 should be approximately 0.1μF or larger.
• The VDDA and VSSA traces must be thicker than the other traces.
L4
VSSA
C4
VDDA
L4’
No.A1860-29/33