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参数资料
| 型号： | LC78684E |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封装： | 14 X 14 MM, QFP-80 |
| 文件页数： | 10/21页 |
| 文件大小： | 152K |
| 代理商： | LC78684E |
LC78684E
No.7350-18/21
Continued from preceding page.
Pin No.
Pin Name
I/O
Block
Function
51
DVDD4
Digital I/O system power supply
52
VSS
Power supply
Ground
53
MADRS7
O
DRAM address output 7
54
MADRS6
O
DRAM address output 6
55
MADRS5
O
DRAM address output 5
56
MADRS4
O
DRAM address output 4
57
MADRS3
O
DRAM address output 3
58
MADRS2
O
DRAM address output 2
59
MADRS1
O
DRAM address output 1
60
MADRS0
O
Memory interface
DRAM address output 0
61
DVDD5
Internal logic system power supply
62
VSS
Power supply
GND
63
STREQ
I/O
MP3 data request flag output (active high)
/DRAM data request flag input (CD-ROM mode, active high)
64
STCK
I/O
MP3 data transfer clock input
/DRAM data transfer clock output
65
STDAT
I/O
MP3 stream I/O
MP3 serial data input
/DRAM serial data output
66
FSYNC
O
MP3-dec
MP3 frame sync signal (active high)
/Data continuity point detection complete flag (CD-DA mode, active high)
67
CRCF
O
CD monitor
CRC check result output (CD-ROM data/CD-DA subcode data)
/DRAM data output enable signal output (active high)
68
DVDD6
Digital I/O system power supply
69
VSS
Power supply
GND
70
WOK
I
DRAM write enable input (CD-DA mode, active high)
/DRAM data request flag input
71
CNTOK
O
Data continuity point detection complete flag (CD-DA mode, active high)
/SYNC error monitor flag (MP3 mode, active high)/DRAM serial data output
72
OVF
O
CD-DA shockproof
and MP3 I/O
DRAM write interrupt flag (CD-DA mode, active high)
/Emphasis output flag (CD-DA and MP3 modes, active high)
/DRAM data transfer clock output
73
CMDOUT
O
Serial command data output (n-channel open-drain output)
74
CMDIN
I
Serial command data input
75
CL
I
Serial command clock input
76
CE
I
Command enable input (active high)
77
INTB
O
Interrupt signal output (active low)
/DRAM write interrupt flag (CD-DA mode, active high)
78
RESB
I
Microcontroller
interface
System reset (active low)
79
DATAIN
I
Serial CD data input
80
DATACK
I
CD IF
CD bit clock input
Notes: 1. Notes on unused pins.
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.
2. The corresponding power supply levels must be provided to all of the DVDD1, DVDD3, DVDD4, DVDD6, and AVDD pins. The corresponding
power supply level must also be provided to DVDD2 and DVDD5. (See the Allowable Operating Ranges specifications for the supply
levels.)
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 s.
6. A 16.9344 MHz clock signal must be supplied to the CKIN pin by the CD DSP.
The LC78684E does not support the implementation of an oscillator circuit using an oscillator element.
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相关代理商/技术参数 |
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|---|---|
| LC7868E | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC7868KE | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC786922E-6A01-E | 制造商:ON Semiconductor 功能描述:CD-DSP - Trays |
| LC786923W-02ST-LR-E | 制造商:ON Semiconductor 功能描述: |
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