Datasheet > LMU08JC50

LMU08JC50

更新时间： 2024-11-26 23:47:23

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
7页	178K
描述
Multiplier

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中文翻译

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数据手册

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LMU08JC50 数据手册

LMU08/8U

DEVICES INCORPORATED

8 x 8-bit Parallel Multiplier

LMU08/8U

8 x 8-bit Parallel Multiplier

DEVICES INCORPORATED

FEATURES

DESCRIPTION

The LMU08 and LMU8U are high-

speed, low power 8-bit parallel

multipliers. They are pin-for-pin

equivalents with TRW TMC208K and

TMC28KU type multipliers. Full

military ambient temperature range

operation is attained by the use of

advanced CMOS technology.

This facilitates use of the LMU08

product as a double precision operand

in 8-bit systems. The LMU8U oper-

ates on unsigned data, producing an

unsigned magnitude result.

❑ 20 ns Worst-Case Multiply Time

❑ LowPowerCMOSTechnology

❑ LMU08 Replaces TRW TMC208K

❑ LMU8UReplacesTRWTMC28KU

❑ Two’sComplement(LMU08),or

Both the LMU08 and the LMU8U

feature independently controlled

registers for both inputs and the

product, which along with three-state

outputs allows easy interfacing with

microprocessor busses. Provision is

Unsigned Operands (LMU8U)

❑ Three-State Outputs

❑ Package Styles Available:

Both the LMU08 and the LMU8U

produce the 16-bit product of two

8-bit numbers. The LMU08 accepts

• 40-pin PDIP

• 44-pinPLCC, J-Lead

operands in two’s complement format, made in the LMU08 and LMU8U for

and produces a two’s complement proper rounding of the product to

result. The product is provided in two 8-bit precision. The round input is

halves with the sign bit replicated as loaded at the rising edge of the logical

the most significant bit of both halves. OR of CLK A and CLK B for the

LMU08. The LMU8U latches RND on

the rising edge of CLK A only. In

either case, a ‘1’ is added in the most

LMU08/8U BLOCK DIAGRAM

significant position of the lower

7-0

B7-0

product byte when RND is asserted.

Subsequent truncation of the least

significant product byte results in a

correctly rounded 8-bit result.

CLK A

CLK B

A REGISTER

B REGISTER

LMU08 Only

RND

CLK R

RESULT

OEM

OEL

15-8

R7-0

Multipliers

08/16/2000–LDS.08/8U-R

12 3 4 5 6 7

中文翻译

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