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Tri-valued, thermal-insulating and low-power multiplier unit and multiplier

A low-power multiplier technology, applied in the field of ternary adiabatic low-power multiplier units and multipliers, can solve problems such as high power consumption and complex circuit structure

Inactive Publication Date: 2011-11-16
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the traditional multi-valued logic (such as three-valued multiplier unit) circuits adopt gate-level design technology, that is, the gate circuit is the smallest structural unit, the circuit structure is complex, and the power consumption is high.

Method used

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  • Tri-valued, thermal-insulating and low-power multiplier unit and multiplier
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  • Tri-valued, thermal-insulating and low-power multiplier unit and multiplier

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Experimental program
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Effect test

Embodiment 1

[0047] In the binary logic circuit, the multiplication of two signals is realized by AND gate, and no carry is generated. However, in a three-valued logic circuit, the product of two signals may exceed the value range (2×2=4), thereby generating a carry like an adder unit (ie, a full adder), so the three-valued multiplier unit (ie, Three-valued full multiplier) in addition to having the multiplicand A, the multiplier B and the original product output P, ​​will also have a carry input C in and Carry Out C out , as the truth table shown in Table 1.

[0048] Table 1 The truth table of the ternary multiplier unit

[0049]

[0050] The present invention combines "Design of a DTCTGAL circuit and its application" (authors: Wang Pengjun, Li Kunpeng, Mei Fengna) disclosed in the Chinese Journal of Semiconductors on the basis of analyzing the truth table of Table 1 [Journal of Semiconductors, "Based on Double DTCTGAL circuit design and application of power clock", Wang Pengjun, Li...

Embodiment 2

[0064] A ternary adiabatic low power consumption multiplier composed of the ternary adiabatic low power consumption multiplier unit given in Embodiment 1, such as Figure 9 As shown, it includes a 4-bit three-value adiabatic low-power multiplier unit, the first three-value adiabatic low-power multiplier unit FM0 is used to input the input terminal of the low-order carry input signal to input 0, that is, C in =0, the first three-value adiabatic low-power multiplier unit FM0 is used to input the input terminal of the complementary low-order carry input signal to access the clocked clock signal whose amplitude level corresponds to logic 2 which is The first three-value adiabatic low-power multiplier unit FM0 is used to output the output terminal C of the carry output signal 0 It is connected with the input end of the second ternary adiabatic low power consumption multiplier unit FM1 for inputting the low-order carry input signal, and the first ternary adiabatic low power consu...

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Abstract

The invention discloses a tri-valued, thermal-insulating and low-power multiplier unit and a multiplier. The multiplier unit controls each NMOS tube in an input signal sampling circuit to sample input signals by using a clock-controlled clock signal; four corresponding integrating circuit modules and carry output circuits with cross storage-type structures are constructed by sampled values according to required realized multiplication logic relationship through the bootstrap operation of the NMOS tube; power clocks phi1 and phi complete the evaluation and energy recovery of the output load torealize correct logic function; and compared with a DPL tri-valued multiplier, the four-digit tri-valued thermal-insulating and low-power multiplier can save energy consumption by about 91 percent in0.9 microsecond and has distinct low-power characteristics.

Description

technical field [0001] The invention relates to a multiplier, in particular to a ternary adiabatic low power consumption multiplier unit and a multiplier. Background technique [0002] Multiplication is a basic operation in digital signal processing. In digital signal processing such as images and voices, the multiplier plays an important role and largely affects the power consumption of the system. For example, the power consumed by the multiplier usually accounts for the entire DSP (Digital Signal Processing, digital signal Processing) about 50% of chip power consumption. Most of the traditional CMOS integrated circuits are powered by DC power supply, and its energy is always consumed by power supply→capacitance→ground at one time, although it can be reduced by reducing the power supply voltage and node capacitance, reducing switch redundancy jumps, etc. power consumption, but its power savings are very limited. However, "Design of adiabatic 4-2 compressor and multiplie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F7/52
Inventor 汪鹏君李昆鹏
Owner NINGBO UNIV
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