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Cortex-A7 - Microarchitectures - ARM
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Cortex-A7 µarch
General Info
Arch TypeCPU
DesignerARM Holdings
IntroductionOctober 19, 2011
Process40 nm, 28 nm

Cortex-A7 (codename Kingfisher) is the successor to the Cortex-A9, a high efficiency ARM microarchitecture designed by ARM Holdings for the mobile market. This microarchitecture is designed as a synthesizable IP core and is sold to other semiconductor companies to be implemented in their own chips. The Cortex-A7 was introduced along with the big.LITTLE technology so that it could be integrated along with the a higher-performance core such as the Cortex-A15 or the Cortex-A17 for better energy and power efficiency.


Key changes from Cortex-A9[edit]

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Block Diagram[edit]

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Memory Hierarchy[edit]

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Arm named the following companies as licensees.


MediaTek MT6595[edit]

  • TSMC 28 nm process
  • 89 mm² die size
  • Quad-core Cortex-A7
    • ~0.48 mm² per core
  • Quad-core Cortex-A17 + 2 MiB L2
    • ~1.93 mm² per core
    • ~3.93 mm² for 2 MiB L2

(small quad-core is unlabeled below the big core cluster)

mt6595 die shot.png


  • Mair, Hugh, et al. "23.3 A highly integrated smartphone SoC featuring a 2.5 GHz octa-core CPU with advanced high-performance and low-power techniques." Solid-State Circuits Conference-(ISSCC), 2015 IEEE International. IEEE, 2015.
codenameCortex-A7 +
designerARM Holdings +
first launchedOctober 19, 2011 +
full page namearm holdings/microarchitectures/cortex-a7 +
instance ofmicroarchitecture +
instruction set architectureARMv7 +
manufacturerTSMC +
microarchitecture typeCPU +
nameCortex-A7 +
process40 nm (0.04 μm, 4.0e-5 mm) + and 28 nm (0.028 μm, 2.8e-5 mm) +