Cortex-A5 Processor

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The ARM Cortex-A5 processor is the smallest, lowest cost and lowest power ARMv7 application processor.

As a standalone processor, it is capable of delivering the internet to the widest possible range of devices, from smart devices like wearables, feature phones and low-cost, entry-level smartphones, to a range of pervasive embedded, consumer and industrial devices.

The Cortex-A5 processor is supported by a suite of optimized IP targeted at mid-range solutions, bringing highest efficiency levels and ease of integration. ARM Mali™-400 provides support for 2D vector graphics through OpenVG™ 1.1 and 3D graphics through OpenGL® ES 1.1 and 2.0, while ARM Physical IP Platforms deliver process optimized IP, for best-in-class implementations of the Cortex-A5 processor at 40nm and below.


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The Cortex-A5 processor achieves better performance than the ARM1176JZ-S processor, better power and energy efficiency than the ARM926EJ-S, and full instruction set and feature compatibility with the higher performance Cortex-A9 processor at one third of the area and power. It is the most mature, most configurable, smallest, and lowest power ARMv7-A CPU, and provides a high-value migration path for existing ARM926EJ-S™ and ARM1176JZ-S™ processor designs.

The Cortex-A5 processor delivers a range of high-end features to power and cost-sensitive applications. These include multiprocessing capability for scalable and energy-efficient performance, optional Floating-Point Unit (FPU) and NEON™ units for media and signal processing, and a high-performance memory system including configurable caches and a Memory Management Unit (MMU).


The Cortex-A5 is designed for application in products which require virtual memory management for high-level operating systems within an extremely low-power profile.

Key target markets incude:

  • Entry-level smartphones
  • Feature phones
  • Wearable devices
  • Mobile payments
  • Internet of Things (IoT)
  • Digital TVs
  • Smart meters
  • DVD and audio players


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