lc78684e Sanyo Semiconductor Corporation, lc78684e Datasheet - Page 18

• Manufacturer Part Number: lc78684e
• Description: Mp3 Decoder For Compact Disc Players
• Manufacturer: Sanyo Semiconductor Corporation

Continued from preceding page.
Notes: 1. Notes on unused pins.
Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
2. The corresponding power supply levels must be provided to all of the DV
3. The TEST1 and TEST2 input pins must be connected to ground (0 V).
4. The I/O pins (MDAT0:15, STREQ, STCK, and STDAT) go to input mode after a reset.
5. After first applying the power supply levels, the RESB pin must be held low for at least 1 µs.
6. A 16.9344 MHz clock signal must be supplied to the CKIN pin by the CD DSP.
Unused input pins must be connected to the ground level (0 V).
Unused output pins must be left open. Do not connect anything to these pins.
Unused I/O pins may either be connected to the ground level (0 V) or set to output mode and left open.
corresponding power supply level must also be provided to DV
for the supply levels.)
The LC78684E does not support the implementation of an oscillator circuit using an oscillator element.
DV
V
MADRS7
MADRS6
MADRS5
MADRS4
MADRS3
MADRS2
MADRS1
MADRS0
DV
V
STREQ
STCK
STDAT
FSYNC
CRCF
DV
V
WOK
CNTOK
OVF
CMDOUT
CMDIN
CL
CE
INTB
RESB
DATAIN
DATACK
Pin Name
SS
SS
SS
DD
DD
DD
4
5
6
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O






I
I
I
I
I
I
I
Power supply
Memory interface
Power supply
MP3 stream I/O
MP3-dec
CD monitor
Power supply
CD-DA shockproof
and MP3 I/O
Microcontroller
interface
CD IF
Block
Digital I/O system power supply
Ground
DRAM address output 7
DRAM address output 6
DRAM address output 5
DRAM address output 4
DRAM address output 3
DRAM address output 2
DRAM address output 1
DRAM address output 0
Internal logic system power supply
GND
MP3 data request flag output (active high)
/DRAM data request flag input (CD-ROM mode, active high)
MP3 data transfer clock input
/DRAM data transfer clock output
MP3 serial data input
/DRAM serial data output
MP3 frame sync signal (active high)
/Data continuity point detection complete flag (CD-DA mode, active high)
CRC check result output (CD-ROM data/CD-DA subcode data)
/DRAM data output enable signal output (active high)
Digital I/O system power supply
GND
DRAM write enable input (CD-DA mode, active high)
/DRAM data request flag input
Data continuity point detection complete flag (CD-DA mode, active high)
/SYNC error monitor flag (MP3 mode, active high)/DRAM serial data output
DRAM write interrupt flag (CD-DA mode, active high)
/Emphasis output flag (CD-DA and MP3 modes, active high)
/DRAM data transfer clock output
Serial command data output (n-channel open-drain output)
Serial command data input
Serial command clock input
Command enable input (active high)
Interrupt signal output (active low)
/DRAM write interrupt flag (CD-DA mode, active high)
System reset (active low)
Serial CD data input
CD bit clock input
LC78684E
DD
2 and DV
DD
DD
1, DV
5. (See the Allowable Operating Ranges specifications
DD
3, DV
Function
DD
4, DV
DD
6, and AV
DD
pins. The
No.7350-18/21