87
HCD-PX333
Pin No. Pin Name I/O Description
74 VCC3 —Power supply terminal (+3.3V)
75 A18 O Address signal output Not used (open)
76 VSS3 —Ground terminal
77 to 85 A17 to A9 O Address signal output Not used (open)
86 to 89 SEL3 to SEL0 I Model destination setting input terminal
90 WP O Writing protect signal output Not used (fixed at “L”)
91 VCC4 —Power supply terminal (+3.3V)
92 A8 O Address signal output Not used (open)
93 VSS4 —Ground terminal
94 to 100 A7 to A1 O Address signal output Not used (open)
102 to 113 Two-way data bus Not used (open)
114 CLIP SEL O Not used (open)
115 I2CBUSY I/O Busy signal input/output for the IIC bus
116 DALOCK I Lock signal input from the D/A converter (IC1006)
117 LINE-MUTE O Audio line muting on/off control signal output
118 ADPDWN O Power down detection signal output to the A/D converter (IC1005)
119 to 12
2
D3 to D0 I/O Two-way data bus Not used (open)
123 SPDIF-CUT O MD/CD digital input selection signal output terminal Not used (open)
124 OPTSEL O CD/optical digital input selection signal output to the digital signal selector (IC1008)
125 to 12
9
—ONot used (open)
130 VSS5 —Ground terminal
131 —ONot used (open)
132 VCC5 —Power supply terminal (+3.3V)
133 OP-LEVEL I Optical pick-up voltage input from the automatic power control circuit
134 to 13
9
—ONot used (open)
140 AVSS —Ground terminal (for analog system )
141 —ONot used (open)
142 VREF I Reference voltage (+3.3V) input terminal (for A/D converter)
143 AVCC —Power supply terminal (+3.3V) (for analog system )
144 —ONot used (open)
LB
D15 to D4 I/O
Not used (open)O
101