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参数资料
| 型号： | LC78684NE |
| 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： | 11/24页 |
| 文件大小： | 177K |
| 代理商： | LC78684NE |
No. 7695-19/24
LC78684NE
Pin Functions
Block
No.
Pin
I/O
Supplement
CD IF
1
LRSY
I
CD left/right clock input
2
ADDATA
O
Audio data output
Audio interface
3
ADBCK
O
Audio bit clock output
4
ADLRCK
O
Audio left/right clock output
CD IF
5
C2FIN
I
CD C2 error flag input
Test
6
TEST1
I
Test input 1 (This pin must be connected to ground.)
CLOCK
7
CKIN
I
System clock (16.9344 MHz) input
Power supply
8
VSS
—
Ground
CLOCK
9
CKOUT
O
External digital filter and D/A converter clock output (384 Fs)
Test
10
TEST2
I
Test input 2 (This pin must be connected to ground.)
Power supply
11
DVDD1
—
Digital system power supply (I/O)
12
PW
I
CD subcode data serial input
Subcode interface
13
SBSY
I
CD subcode block sync signal input
14
SFSY
I
CD subcode frame sync signal input
15
SBCK
O
CD subcode transfer serial clock output
Power supply
16
AVDD
—
Analog system power supply (PLL)
17
VPRFR
—
VCO oscillator range setting
PLL
18
VCOC
I
VCO control voltage input
19
VPDO
O
VCO charge pump output
20
AVSS
—
Analog system ground
Power supply
21
DVDD2
—
Internal logic system power supply
22
VSS
—
Ground
23
MDATA0
I/O
DRAM data bus0
24
MDATA1
I/O
DRAM data bus1
25
MDATA2
I/O
DRAM data bus2
Memory interface
26
MDATA3
I/O
DRAM data bus3
27
MDATA4
I/O
DRAM data bus4
28
MDATA5
I/O
DRAM data bus5
29
MDATA6
I/O
DRAM data bus6
30
MDATA7
I/O
DRAM data bus7
Power supply
31
DVDD3
—
Digital system power supply (I/O)
32
VSS
—
Ground
33
MDATA8
I/O
DRAM data bus8
34
MDATA9
I/O
DRAM data bus9
35
MDATA10
I/O
DRAM data bus10
36
MDATA11
I/O
DRAM data bus11
37
MDATA12
I/O
DRAM data bus12
38
MDATA13
I/O
DRAM data bus13
39
MDATA14
I/O
DRAM data bus14
40
MDATA15
I/O
DRAM data bus15
41
RASB
O
RAS output for EDO DRAM or SDRAM (active low)
42
WEB
O
WE output for EDO DRAM or SDRAM (active low)
Memory interface
43
CASLB
O
When EDO DRAM is used: CAS output (lower byte, active low)
When SDRAM is used: DRAM clock output
44
CASUB
O
When EDO DRAM is used: CAS output (upper byte, active low)
When SDRAM is used: CAS output (active low)
45
OEB
O
When EDO DRAM is used: OE output (active low)
When SDRAM is used: CS output (active low)
46
MADRS12
O
DRAM address output 12
47
MADRS11
O
DRAM address output 11
48
MADRS10
O
DRAM address output 10
49
MADRS9
O
DRAM address output 9
50
MADRS8
O
DRAM address output 8
Power supply
51
DVDD4
—
Digital system power supply (I/O)
52
VSS
—
Ground
Continued on next page.
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