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1.7GHz ARM Cortex-A7 SoC cuts power usage down to 200mW

Posted: 26 Jan 2015 ?? ?Print Version ?Bookmark and Share

Keywords:United Microelectronics? ARM Cortex-A7? SoC? Cadence?

United Microelectronics Corp. (UMC) has developed a silicon-ready 28nm ARM Cortex-A7 MPCore-based SoC that utilised implementation and signoff tools supplied by Cadence Design Systems Inc. The SoC is intended for entry-level smartphones, tablets, high-end wearables and other advanced mobile devices.

With the Cadence solution, UMC reduced the time to tape out by 33 per cent compared with the foundry's previous solution and achieved performance of 1.7GHz. In addition, UMC achieved a dynamic power consumption of less than 200mW, which is a 20 per cent reduction compared with the previous flow.

Using the multi-threaded Encounter Digital Implementation System, which incorporates GigaOpt route-driven optimisation along with CCOpt concurrent clock data path optimisation, resulted in faster turnaround time with improved performance, die area and dynamic power. In addition, the seamless integration of Cadence Tempus Timing Signoff Solution, Voltus IC Power Integrity Solution and Quantus QRC Extraction Solution, Physical Verification System, Litho Physical Analyser and CMP Predictor allowed UMC to perform signoff checks much earlier in the process to affirm that the design functioned as intended upon completion.

- Paul Buckley
??EE Times Europe

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