ARM Cortex-A5
General information
Designed byARM Holdings
Common manufacturer(s)
Max. CPU clock rate233 MHZ  to 1.00 GHZ 
L1 cache4–64 KB/4–64 KB
Architecture and classification
Instruction setARMv7-A
Physical specifications
  • 1–4

The ARM Cortex-A5 is a 32-bit processor core licensed by ARM Holdings implementing the ARMv7-A architecture announced in 2009.[1]


Main article: Comparison of ARMv7-A cores

The Cortex-A5 is intended to replace the ARM9 and ARM11 cores for use in low-end devices.[1] The Cortex-A5 offers features of the ARMv7 architecture focusing on internet applications e.g. VFPv4 and NEON advanced SIMD.[2]

Key features of the Cortex-A5 core are:


Several system-on-chips (SoC) have implemented the Cortex-A5 core, including:

Development platform

Name Processor Controller Board USB serial ports Ethernet HDMI LCD CAN Other Operating system
MYD-JA5D2X Atmel SAMA5D2 Cortex-A5 MYC-JA5D2X 3 x USB Host(1 x USB HSIC ) 2 x RS232 (1 x Debug),1 xRS485 1 x 10/100Mpbs Ethernet 0 1 x LCD 1 x CAN 1 x LPFMC Linux 4.1
MYD-JA5D44 Atmel SAMA5D4 Cortex-A5 MYC-JA5D44 3 x USB 2 x RS232 (1 x Debug),1 x RS485 2 x 10/100Mpbs Ethernet 1 x HDMI 1 x LCD 1 x CAN Linux 3.18
MYD-SAMA5D3X Atmel SAMA5D3 Cortex-A5 512/256MB DDR2, 256MB Nand Flash,16MB Nor Flash,4MB Data Flash 2 x USB Host,1 x USB OTG 2 x RS232 (1 x Debug),1 x RS485 Gigabit Ethernet 1 x HDMI 1 x LCD 2 x CAN Linux 3.6.9, Android 4.0.4

See also


  1. ^ a b c d Jon Stokes (Oct 23, 2009). "ARM fills out CPU lineup with Cortex A5". Ars Technica. Retrieved 2012-10-18.
  2. ^ "Cortex-A5 Processor". February 2015.
  3. ^ Ryan Smith (2012-06-13). "AMD 2013 APUs To Include ARM Cortex-A5 Processor For TrustZone Capabilities". AnandTech. Retrieved 2012-10-17.
  4. ^ "The Samsung Exynos 7420 Deep Dive - Inside A Modern 14nm SoC". AnandTech. Retrieved 2015-06-15.
  5. ^ Buhren, Robert; Eichner, Alexander (2020-08-05). "All You Ever Wanted to Know about the AMD Platform Security Processor and were Afraid to Emulate - Inside a Deeply Embedded Security Processor". presentation slides (PDF). Black Hat USA 2020 (presentation). Archived from the original on 2023-06-22. Retrieved 2023-06-22. The Cortex used inside the AMD CPU is a Cortex A5
ARM Holdings