LMU216

DEVICES INCORPORATED DEVICES INCORPORATED LMU16/216 16 x 16-bLitMPaUral1le6l M/2ult1ip6lier 16 x 16-bit Parallel Multiplier FEATURES DESCRIPTION u 20 ns Worst-Case Multiply Time u Low Power CMOS Technology u Replaces Fairchild MPY016/TMC216, Cypress CY7C516, IDT 7216L, and AMD Am29516 u Two’s Complement, Unsigned, or Mixed Operands u Three-State Outputs u 68-pin PLCC, J-Lead The LMU16 and LMU216 are highspeed, low power 16-bit parallel multipliers. The LMU16 and LMU216 are functionally identical; they differ only in packaging. The LMU16 and LMU216 produce the 32-bit product of two 16-bit numbers. Data present at the A inputs, along with the TCA control bit, is loaded into the A register on the rising edge of CLK A. B data and the TCB control bit are similarly loaded by CLK B. The TCA and TCB controls specify the A and B operands as two’s complement when HIGH, or unsigned magnitude when LOW. LMU16/216 BLOCK DIAGRAM CLK A CLK B TCA A 15-0 16 A REGISTER TCB B 15-0/ R15-0 1...