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LMU08

Part Number	LMU08
Manufacturer	LOGIC Devices Incorporated
Description	8 x 8-bit Parallel Multiplier
Published	Apr 25, 2005
Detailed Description	LMU08/8U DEVICES INCORPORATED 8 x 8-bit Parallel Multiplier LMU08/8U DEVICES INCORPORATED 8 x 8-bit Parallel Multipl...
Datasheet	LMU08 PDF File

Overview

LMU08/8U DEVICES INCORPORATED 8 x 8-bit Parallel Multiplier LMU08/8U DEVICES INCORPORATED 8 x 8-bit Parallel Multiplier DESCRIPTION The LMU08 and LMU8U are highspeed, 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 operates on unsigned data, producing an unsigned magnitude result.
FEATURES u u u u u 20 ns Worst-Case Multiply Time Low Power CMOS Technology LMU08 Replaces TRW TMC208K LMU8U Replaces TRW TMC28KU Two’s Complement (LMU08), or Unsigned Operands (LMU8U) u Three-State Outputs u Package Styles Available: • 40-pin PDIP • 44-pin PLCC, J-Lead LMU08/8U BLOCK DIAGRAM CLK A CLK B Both the LMU08 and the LMU8U feature independently controlled registers for both inputs and the product, which along with three-state Both the LMU08 and the LMU8U produce the 16-bit product of two outputs allows easy interfacing with 8-bit numbers.
The LMU08 accepts microprocessor busses.
Provision is operands in two’s complement format, made in the LMU08 and LMU8U for proper rounding of the product to and produces a two’s complement 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 significant position of the lower A 7-0 B 7-0 product byte when RND is asserted.
8 8 Subsequent truncation of the least significant product byte results in a B REGISTER A REGISTER correctly rounded 8-bit result.
LMU08 Only REGISTER RND 16 8 8 CLK R RESULT REGISTER OEM 8 R 15-8 8 R 7-0 OEL Multipliers 1 08/16/2000–LDS.
08/8U-R LMU08/8U DEVICES INCOR...

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