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)

 

 

 

 

 

 

 

 

 

 

 

 

O

Not used (open)

 

 

101

 

LB

 

 

 

 

 

 

 

 

 

102 to 113

D15 to D4

I/O

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 122

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 129

 

O

Not used (open)

 

 

130

VSS5

Ground terminal

 

 

131

 

O

Not 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 139

 

O

Not used (open)

 

 

 

 

 

 

 

 

140

AVSS

Ground terminal (for analog system )

141

 

O

Not 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

 

O

Not used (open)

 

 

 

 

 

 

 

 

 

 

87

Page 87
Image 87
Sony HCD-PX333 VCC3, VSS3, VCC4, VSS4, Clip SEL, I2CBUSY, Dalock, Adpdwn, Spdif-Cut, Optsel, VSS5, VCC5, Op-Level, Avcc