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參數(shù)資料
| 型號(hào)： | IDT7210L40CB |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 數(shù)字信號(hào)處理外設(shè) |
| 英文描述： | 16 x 16 PARALLEL CMOS MULTIPLIER-ACCUMULATOR |
| 中文描述： | 16-BIT, DSP-MULTIPLIER ACCUMULATOR/SUMMER, CDIP64 |
| 封裝： | TOP BRAZED, DIP-64 |
| 文件頁數(shù)： | 2/10頁 |
| 文件大小： | 167K |
| 代理商： | IDT7210L40CB |
11.2
2
IDT7210L
16 x 16 PARALLEL CMOS MULTIPLIER-ACCUMULATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DESCRIPTION (Continued)
The Accumulate input (ACC) enables the device to perform
either a multiply or a multiply-accumulate function. In the
multiply-accumulate mode, output data can be added to or
subtracted from previous results. When the Subtraction (SUB)
input is active simultaneously with an active ACC, a subtraction
can be performed. The double precision accumulated result is
rounded down to either a single precision or single precision
plus 3-bit extended result. In the multiply mode, the Extended
Product output (XTP) is sign extended in the two’s complement
mode or set to zero in the unsigned mode. The Round (RND)
control rounds up the Most Significant Product (MSP) and the
3-bit Extended Product (XTP) outputs. When Preload input
(PREL) is active, all the output buffers are forced into a high-
impedance state (see Preload truth table) and external data
can be loaded into the output register by using the TSX, TSL
and TSM signals as input controls.
PIN CONFIGURATIONS
DIP
TOP VIEW
PLCC
TOP VIEW
FLATPACK
TOP VIEW
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
17181920212223242526272829303132
64636261605958575655545352515049
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P
0
,
Y
0
X
0
X
1
X
2
X
3
X
4
X
5
X
6
X
7
X
8
X
9
X
10
X
11
X
12
X
13
X
14
P
16
P
17
P
18
P
19
P
20
P
21
P
22
P
23
P
24
P
25
P
26
P
27
P
28
P
29
P
30
P
31
X
1
R
S
A
C
C
V
C
T
T
P
T
C
P
3
P
3
P
3
2577 drw 04
F64-1
P
1
,
Y
1
P
2
,
Y
2
P
3
,
Y
3
P
4
,
Y
4
P
5
,
Y
5
P
6
,
Y
6
P
7
,
Y
7
P
8
,
Y
8
P
9
,
Y
9
P
1
,
Y
1
P
1
,
Y
1
P
1
,
Y
1
P
1
,
Y
1
P
1
,
Y
1
P
1
,
Y
1
G
T
2223
2
3
4
5
6
7
8
9
J68-1, L68-1
6059 585756555453 525150494847464544
61
62
63
64
65
66
67
68
1
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
P
1
, Y
1
P
0
, Y
0
X
0
X
1
X
2
X
3
X
4
X
5
X
6
X
7
X
8
X
9
X
10
X
11
X
12
X
13
X
14
2577 drw 03
S
A
C
C
V
C
V
C
V
C
V
C
T
T
P
T
R
T
X
1
P
33
P
32
P
31
P
30
P
29
P
28
P
27
P
26
P
25
P
24
P
23
P
22
P
21
P
20
P
19
P
18
1011121314 1516171819 2021
242526
C
P
17
P
3
P
1
P
1
,
1
P
1
,
1
P
1
,
1
P
1
,
1
P
1
,
1
P
1
,
1
P
9
,
9
P
8
,
8
G
G
P
7
,
7
P
6
,
6
P
5
,
5
P
4
,
4
P
3
,
3
P
2
,
2
C64-2
2577 drw 02
X
4
X
3
X
2
X
1
X
0
P
0
,
P
23
P
22
P
21
P
20
P
19
P
18
P
16
P
17
P
15
,
P
14
,
P
13
,
P
12
,
P
11
,
P
9
,
P
10
,
P
8
,
P
7
,
GND
P
6
,
P
5
,
P
4
,
P
3
,
P
2
,
P
1
,
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
X
7
X
8
X
9
X
10
X
11
X
12
X
13
P
24
P
25
P
26
P
27
P
28
P
29
P
31
P
30
CLKP
P
34
TSM
PREL
TSX
CC
SUB
ACC
CLKX
V
X
15
RND
X
14
X
5
X
6
P
32
P
33
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