LMU08

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 halve...