LMA2010JC35 datasheet(2/7 Pages) LODEV

Part #	LMA2010JC35

Description	16 x 16-bit Multiplier-Accumulator

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Manufacturer	LODEV [LOGIC Devices Incorporated]

Direct Link	http://www.logicdevices.com

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DEVICES INCORPORATED

LMA1010/2010

16 x 16-bit Multiplier-Accumulator

Multiplier-Accumulators

08/16/2000–LDS.10/2010-P

2

TABLE 1. PRELOAD TRUTH TABLE

PREL = Preload data to appropriate register

OUT = Register available on output pins

Z

= High impedance state

PREL OEX

OEM

OEL

XTR

MSR LSR

L

OUT

L

H

OUT

Z

L

H

L

OUT

Z

OUT

L

H

OUT

Z

L

H

L

Z

OUT

L

H

L

H

Z

OUT

Z

L

H

L

Z

OUT

LH

H

Z

HL

L

Z

H

L

H

Z

PREL

H

L

H

L

Z

PREL

Z

H

L

H

Z

PREL PREL

H

L

PREL

Z

H

L

H

PREL

Z

PREL

H

L

PREL PREL

Z

H

PREL PREL PREL

FIGURE 1A.INPUT FORMATS

15 14 13

2

1

0

–2

0

(Sign)

2

–1 2–2

2

–13 2–14 2–15

15 14 13

2

1

0

–2

0

(Sign)

2

–1 2–2

2

–13 2–14 2–15

Fractional Two’s Complement (TC = 1)

15 14 13

2

1

0

–2

15

(Sign)

2

14 213

2

1

2

0

15 14 13

2

1

0

–2

15

(Sign)

2

14 213

2

1

2

0

Integer Two’s Complement (TC = 1)

15 14 13

2

1

0

2

–1 2–2 2–3

2

–14 2–15 2–16

15 14 13

2

1

0

2

–1 2–2 2–3

2

–14 2–15 2–16

Unsigned Fractional (TC = 0)

15 14 13

2

1

0

2

15 214 213

2

1

2

0

15 14 13

2

1

0

2

15 214 213

2

1

2

0

Unsigned Integer (TC = 0)

AIN

BIN

FIGURE 1B.OUTPUT FORMATS

31 30 29

18 17 16

2

1

2

0

2

–1

2

–12 2–13 2–14

34 33 32

–2

4

(Sign)

2

3

2

Fractional Two’s Complement

Integer Two’s Complement

Unsigned Fractional

Unsigned Integer

MSR

LSR

31 30 29

18 17 16

2

31 230 229

2

18 217 216

31 30 29

18 17 16

2

–1 2–2 2–3

2

–14 2–15 2–16

31 30 29

18 17 16

2

31 230 229

2

18 217 216

15 14 13

2

1

0

2

–15 2–16 2–17

2

–28 2–29 2–30

XTR

34 33 32

–2

34

(Sign)

2

33

2

32

15 14 13

2

1

0

2

15 214 213

2

1

2

0

34 33 32

2

1

2

0

15 14 13

2

1

0

2

–17 2–18 2–19

2

–30 2–31 2–32

34 33 32

2

34

2

33

2

32

15 14 13

2

1

0

2

15 214 213

2

1

2

0

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