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IDT7210

16 x 16 PARALLEL CMOS MULTIPLIER-ACCUMULATOR

Integrated Device Technology 

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

X6

X5

X4

X3

X2

X1

X0

P0,

P1,

P2,

P3,

P4,

P5,

P6,

P7,

GND

P8,

P9,

P10,

P11,

P12,

P13,

P14,

P15,

P16

P17

P18

P19

P20

P21

P22

P23

1

64

2

63

3

62

4

61

5

60

6

59

7

58

8

57

9

56

10

55

11

54

12

53

13

52

14

51

15

50

16

17

C64-2

49

48

18

47

19

46

20

45

21

44

22

43

23

42

24

41

25

40

26

39

27

38

28

37

29

36

30

35

31

34

32

33

X7

X8

X9

X10

X11

X12

X13

X14

X15

TSL

RND

SUB

ACC

CLKX

CLKY

VCC

TC

TSX

PREL

TSM

CLKP

P34

P33

P32

P31

P30

P29

P28

P27

P26

P25

P24

DIP

TOP VIEW

2577 drw 02

P1, Y1 61

P0, Y0 62

X0 63

X1 64

X2 65

X3 66

X4 67

X5 68

X6 1

X7 2

X8 3

X9 4

X10 5

X11 6

X12 7

X13 8

X14 9

60 59 58 5756 55 54 53 5251 50 4948 47 46 45 44

J68J-618, -L168-1

43 P17

42 P18

41 P19

40 P20

39 P21

38 P22

37 P23

36 P24

35 P25

34 P26

33 P27

32 P28

31 P29

30 P30

29 P31

28 P32

27 P33

10 11 1213 14 1516 17 18 19 20 2122 23 24 25 26

2577 drw 03

PLCC

TOP VIEW

P0, Y0

X0

X1

X2

X3

X4

X5

X6

X7

X8

X9

X10

X11

X12

X13

X14

64636261 605958575655 545352 515049

1

48 P16

2

47 P17

3

46 P18

4

45 P19

5

44 P20

6

43 P21

7

42 P22

8

41 P23

9

F64-1

40 P24

10

39 P25

11

38 P26

12

37 P27

13

36 P28

14

35 P29

15

34 P30

16

33 P31

17181920 212223242526 272829 303132

2577 drw 04

FLATPACK

TOP VIEW

11.2

2

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