The Cortex-A9 processor features a dual-issue, partially out-of-order pipeline and a flexible system architecture with configurable caches and system coherency using the ACP port. The Cortex-A9 processor achieves a better than 50% performance over the Cortex-A8 processor in a single-core configuration.
Scalable performance and power efficiency for a broad range of 32-bit consumer, networking, enterprise, and mobile applications.
Support the wide Armv7-A 32-bit software eco-system.
Mature and silicon-proven in multiple process technologies.
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The Cortex-A9 processor is suitable for low-power, cost-sensitive 32-bit devices which require competitive power efficiency. Beyond being one of the most successful mobile phone processors designed by Arm, it is now successfully implemented for a range of other products.
Low-cost consumer devices
Home networking appliances
32-bit embedded compute devices
Partial Out-of-order 10+ stage pipeline
Dual-issue superscalar pipeline with out-of-order dynamic length.
Available in single core and multi core configurations
The Cortex-A9 processor is available in two variants: as a single core Cortex-A9 UP processor and as Cortex-A9 MP where it can scale up to four processor cores in a cluster.
Scalable and configurable Armv7-A processor and cluster
Configurable L1 caches up to 64kB, optional NEON and Floating-point extensions, system coherency support using Accelerator Coherency Port (ACP).
The Cortex-A9 processor is a performance and power optimized multi-core processor. It features a dual-issue, partially out-of-order pipeline and a flexible system architecture with configurable caches and system coherency using ACP port. The Cortex-A9 processor achieves a better than 50% performance over the Cortex-A8 processor in a single-core configuration.
The Cortex-A9 processor can be incorporated into an SoC using a broad range of Arm technology including Graphics IP, System IP, and Physical IP. The Cortex-A9 processor is fully supported by Arm development tools. Related IP includes:
Cortex-A9 Technical Reference Manual
For system designers and software engineers, the Cortex-A9 manual provides information on implementing and programming Cortex-A9 based devices.View now
Cortex-A Series Programmer's Guide for Armv7-A
Common to all Cortex-A series processors, this programmer's guide is useful for assembly and C language application development for Armv7-A.Get the Guide
Development Tools for Cortex-A
Arm and our partners provide specialist code generation, debug and analysis tools for software development on Cortex-A series processors, such as DS-5 Development Studio.Development Tools
Arm Design Reviews
Arm's on-site design review service gives licensees confidence that their Cortex-A9 CPU is implemented efficiently, to provide maximum system performance, with lowest risk and fastest time-to-market.Explore Arm Design Reviews
Questions? Request more information
Learn more about Cortex-A9, Arm’s performance and power optimized multi-core processor and one of the most widely deployed applications processors designed by Arm. Contact us to speak with our technical team.Find out more