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参数资料
| 型号： | CS4207-DNZR |
| 厂商： | CIRRUS LOGIC INC |
| 元件分类： | 消费家电 |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC48 |
| 封装： | 6 X 6 MM, LEAD FREE, MO-229, QFN-48 |
| 文件页数： | 14/15页 |
| 文件大小： | 814K |
| 代理商： | CS4207-DNZR |
SCE5780
2006-01-23
8
column data bits. The three most significant bits, D7–D5 represent
the opcode for the row data and the least significant five bits, D4–
D0 represent the column data. See Table Load Column Data“
(page 9) for the column data format. If an address is loaded before
all seven rows are written, the next column data will be loaded into
Row 0 of the new address. The remaining rows of the old address
are not changed.
Table Charcater D“
(page 8) shows the Row Address for the
example character, “D.” Column data is written and read asynchro-
nously from the 280 bit RAM. Once loaded, the internal oscillator
and character multiplexer reads the data from the RAM. These
characters are row strobed with column data as shown in Figures
Row and Column Locations for a Character ’D’“
(page 9) and
Row Strobing“
(page 10). The character strobe rate is determined
by the internal or user supplied external MUX Clock and the
ICs÷ 320 counter.
Loading Serial Character Data
Character D“
Row
Op code
D7
D6
D5
Column Data
D4
D3
D2
D1
D0
C0
C1
C2
C3
C4
Hex
0
00
0
11
1
0
1E
1
00
0
10
0
1
11
2
00
0
10
0
1
11
3
00
0
10
0
1
11
4
00
0
10
0
1
11
5
00
0
10
0
1
11
6
00
0
11
1
0
1E
Character 0
Character 1
Character 2
Character 3
Character 4
Character 5
Character 6
Character 7
Example: Serial Clock=5.0 MHz, Clock Period=200 ns
Time between LOADS
LOAD
Serial
Clock
DATA
Clock
Period
t0
D0
D1
D2
D3
D4
D5
D6
D7
11 Clock Cycles, 2.2
s
Time
Between
Loads
600 ns(min)
Character Address
OPCODE
Column Data
D0
D
D1
D
D2
D
D3
D
D4
D
11 Clock Cycles, 2.2
s
Character 0
Address
Row 0 Column
Data
88 Clock Cycles, 17.6
s
704 Clock Cycles, 140.8
s
Row 1 Column
Data
Row 2 Column
Data
Row 3 Column
Data
Row 4 Column
Data
D0
0
D1
0
D2
0
D3
0
D4
0
D5
1
D6
0
D7
1
a.
b.
c.
d.
Row 5 Column
Data
Row 6 Column
Data
D5
0
D6
0
D7
0
Time
Between
Loads
600 ns(min)
OPCODE
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