ARM Cortex-A55
The ARM Cortex-A55 is a central processing unit implementing the ARMv8.2-A 64-bit instruction set designed by ARM Holdings' Cambridge design centre. The Cortex-A55 is a two-wide decode in-order superscalar pipeline.
Design
The Cortex-A55 serves as the successor of the ARM Cortex-A53, designed to improve performance and energy efficiency over the A53. ARM has stated the A55 should have 15% improved power efficiency and 18% increased performance relative to the A53. Memory access and branch prediction are also improved relative to the A53.The Cortex-A75 and Cortex-A55 cores are the first products to support ARM's DynamIQ technology. The successor to big.LITTLE, this technology is designed to be more flexible and scalable when designing multi-core products.
Licensing
The Cortex-A55 is available as SIP core to licensees, and its design makes it suitable for integration with other SIP cores into one die constituting a system on a chip.ARM has also collaborated with Qualcomm for a semi-custom version of the Cortex-A55, used within the Kryo 385 CPU core. This semi-custom core is also used in some Qualcomm's mid-range SoCs as Kryo 360 Silver and Kryo 460 Silver.
Usage
- The Cortex-A55 is used as Little-core in Intel Agilex D-series SoC FPGA devices.
- Rockchip RK3566, RK3568, RK3582, RK3588.
- Amlogic S905X3, S905X4, A113D2, T962X2, T968X2, T962D2.
- Unisoc SC9863A, SC9863A1
- Exynos 850
- Exynos 1280
- Exynos 1330
- Exynos 1380
- Exynos 1480
- Snapdragon 7s Gen 2
- JLQ JR510
- NXP i.MX93