參數(shù)資料
型號(hào): AD8114AST
廠商: ANALOG DEVICES INC
元件分類: 運(yùn)動(dòng)控制電子
英文描述: Low Cost 225 MHz 16 X 16 Crosspoint Switches
中文描述: 16-CHANNEL, CROSS POINT SWITCH, PQFP100
封裝: 14 X 14 MM, PLASTIC, LQFP-100
文件頁(yè)數(shù): 6/26頁(yè)
文件大?。?/td> 363K
代理商: AD8114AST
AD8114/AD8115
–6–
REV. 0
Table III. Operation Truth Table
SER
/
PAR
CE
UPDATE
CLK
DATA IN
DATA OUT
RESET
Operation/Comment
1
0
X
1
X
f
X
Data
i
X
Data
i-80
X
1
X
0
No change in logic.
The data on the serial DATA IN line is loaded
into serial register. The first bit clocked into
the serial register appears at DATA OUT 80
clocks later.
The data on the parallel data lines, D0–D4, are
loaded into the 80-bit serial shift register loca-
tion addressed by A0–A3.
Data in the 80-bit shift register transfers into the
parallel latches that control the switch array.
Latches are transparent.
Asynchronous operation. All outputs are disabled.
Remainder of logic is unchanged.
0
1
f
D0 . . . D4,
A0 . . . A3
NA in Parallel
Mode
1
1
0
0
X
X
X
1
X
X
X
X
X
X
0
X
D
CLK
Q
4
A0
A1
A2
CLK
CE
UPDATE
16
256
DATA IN
(SERIAL)
(OUTPUT
ENABLE)
SER
/PAR
RESET
(OUTPUT ENABLE)
OUT0 EN
DATA
OUT
PARALLEL
DATA
D Q
CLK
D Q
CLK
D Q
CLK
D Q
CLK
D1
D2
D3
D4
D Q
CLK
D Q
CLK
D Q
CLK
D Q
CLK
D Q
CLK
OUT1 EN
OUT2 EN
OUT3 EN
OUT4 EN
OUT5 EN
OUT6 EN
OUT7 EN
D
LE
OEN
Q
CLR
OUTPUT ENABLE
SWITCH MATRIX
S
D1
Q
D0
D0
S
D1
Q
D0
S
D1
Q
D0
S
D1
Q
D0
S
D1
Q
D0
S
D1
Q
D0
S
D1
Q
D0
S
D1
Q
D0
D Q
CLK
S
D1
Q
D0
DECODE
D
LE
EN
Q
CLR
D
LE
OB0
Q
D
LE
B1
Q
D
LE
OB2
Q
D
LE
B3
Q
D
LE
B0
Q
D
LE
OEN
Q
CLR
D
LE
OB0
Q
D
LE
OB1
Q
D
LE
OB2
Q
D Q
CLK
S
D1
Q
D0
S
D1
Q
D0
D
LE
OB3
Q
S
D1
Q
D0
OUT8 EN
OUT9 EN
OUT10 EN
OUT11 EN
OUT12 EN
OUT13 EN
OUT14 EN
OUT15 EN
A3
O
A
Figure 4. Logic Diagram
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