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((Short description|Microarchitecture implementing the ARMv8-A 64-bit instruction set designed by ARM Holdings))
((more citations needed|date=November 2015))

((Infobox CPU
|name                      = ARM Cortex-A53
|pcode1                    = Apollo
|image                     = Amazon Echo Dot (RS03QR) - motherboard - Mediatek MT8163V-0558.jpg 
|image_size                = 
|caption                   = A picture of the [[Amazon Echo Dot]] (RS03QR) - motherboard
|produced-start            = 2012
|produced-end              =
|slowest                   = 400 [[MHz]]
|fastest                   = 2.30 [[Gigahertz|GHz]]
|slow-unit                 =
|fast-unit                 =
|fsb-slowest               = 100 [[MHz]]
|fsb-fastest               = 118 [[MHz]] OC<!-- overclocking -->
|fsb-slow-unit             =
|fsb-fast-unit             =
|size-from                 = 
|size-to                   = 
|soldby                    =
|designfirm                = [[ARM Holdings]]
|manuf1                    =
|core1                     =
|sock1                     =
|pack1                     =
|brand1                    =
|arch                      = [[ARMv8-A]]
|cpuid                     =
|code                      =
|numcores                  = 1–8 per cluster
|l1cache                   = 8–64((nbsp))KiB
|l2cache                   = 128((nbsp))KiB((nbsp))–((nbsp))2((nbsp))MiB
|l3cache                   = 
|application               =
|predecessor               = [[ARM Cortex-A7]]
|successor                 = [[ARM Cortex-A55]]
))

The '''ARM Cortex-A53''' is one of the first two [[central processing unit]]s implementing the [[ARMv8-A]] 64-bit [[instruction set]] designed by [[ARM Holdings]]' [[Cambridge]] design centre, along with the [[ARM Cortex-A57|Cortex-A57]]. The Cortex-A53 is a 2-wide decode  [[superscalar processor]], capable of dual-issuing some instructions.<ref name="cortex-a53">((cite web | url=http://www.arm.com/products/processors/cortex-a/cortex-a53-processor.php | title=Cortex-A53 Processor | publisher=[[ARM Holdings]] | access-date=2015-11-08))</ref>  It was announced October 30, 2012<ref name="announce">((cite press release |url= https://www.arm.com/company/news/2012/10/arm-launches-cortex-a50-series-the-worlds-most-energy-efficient-64-bit-processors#:~:text=“ARM%27s%20Cortex%2DA50%20series%20processors,%2C%20Global%20Business%20Units%2C%20AMD. |title= ARM Launches Cortex-A50 Series, the World's Most Energy-Efficient 64-bit Processors |date= 2012-10-30 |publisher= [[ARM Holdings]] |access-date= 2023-05-15))</ref> and is marketed by ARM as either a stand-alone, more [[Performance per watt|energy-efficient]] alternative to the more powerful Cortex-A57 microarchitecture, or to be used alongside a more powerful microarchitecture in a [[ARM big.LITTLE|big.LITTLE]] configuration. It is available as an [[Semiconductor intellectual property core|IP core]] to licensees, like other ARM intellectual property and processor designs.

==Overview==
* 8-stage pipelined processor with 2-way [[superscalar]], in-order execution pipeline
* DSP and [[ARM architecture#Advanced SIMD (NEON)|NEON]] [[SIMD]] extensions are mandatory per core
* [[VFP (instruction set)|VFPv4]] [[Floating-point unit|Floating Point Unit]] onboard (per core)
* [[Hardware virtualization]] support
* [[ARM architecture#Security extensions|TrustZone]] security extensions
* 64-byte [[cache line]]s
* 10-entry L1 [[Translation Lookaside Buffer|TLB]], and 512-entry L2 TLB
* 4((nbsp))KiB conditional [[branch predictor]], 256-entry indirect branch predictor

== Utilization ==
The Cortex-A53 is the most widely used platform for mobile [[System on a chip|SoCs]] since 2014 to the present day ((As of?|date=July 2023)), making it one of the longest-running ARM platform for mobile devices. It is currently featured in most entry-level and lower mid-range SoCs, while higher-end SoCs used the newer [[ARM Cortex-A55]]. The latest SoC still using the Cortex-A53 is the [[List of MediaTek systems on chips#Helio G Series (2019–present)|MediaTek Helio G36]], which is an entry-level SoC designed for budget smartphones.

The ARM Cortex-A53 processor has been used in the LeMaker HiKey since 2015,<ref>((cite web|url=http://www.lemaker.org/blog-news-22.html|title=HiKey attends the ET Show in Japan 2015|date=12 November 2015|website=LeMaker|language=en-US|access-date=2018-07-17|archive-date=2018-07-18|archive-url=https://web.archive.org/web/20180718001607/http://www.lemaker.org/blog-news-22.html|url-status=dead))</ref> the [[Raspberry Pi]] 3 since February 2016,<ref name=":0">((cite web|url=https://www.raspberrypi.org/blog/raspberry-pi-3-on-sale/|title=Raspberry Pi 3 on sale now at $35 - Raspberry Pi|last=Upton|first=Eben|date=29 February 2016|website=Raspberry Pi|language=en-GB|access-date=2016-02-29))</ref> and the [[Raspberry Pi Zero 2 W]] since October 2021.<ref>((cite web|url=https://datasheets.raspberrypi.com/rpizero2/raspberry-pi-zero-2-w-product-brief.pdf|title=Raspberry Pi Zero 2 W Product Brief|date=28 October 2021|website=Raspberry Pi|language=en-GB|access-date=2021-10-28))</ref>

The Cortex-A53 is also used in a number of [[Qualcomm]], [[Samsung]], and [[MediaTek]] [[System on a chip|SoC]]s.<ref>((cite news|last1=Lal Shimpi|first1=Anand|title=Qualcomm Announces Snapdragon 410 based on 64-bit ARM Cortex A53|url=http://www.anandtech.com/show/7573/qualcomm-announces-snapdragon-410-based-on-64bit-arm-cortex-a53-and-adreno-306-gpu|access-date=9 March 2017|publisher=Anandtech|date=9 December 2013))</ref><ref>((cite news|last1=Lal Shimpi|first1=Anand|title=Snapdragon 610 & 615: Qualcomm Continues down its 64-bit warpath with 4/8-core Cortex A53 designs|url=http://www.anandtech.com/show/7784/snapdragon-610-615-qualcomm-continues-down-its-64bit-warpath-with-48core-cortex-a53-designs|access-date=9 March 2017|publisher=Anandtech|date=24 February 2014))</ref><ref name="Snapdragon 625">((cite web | url= https://www.qualcomm.com/products/snapdragon/processors/625 | title = Snapdragon 625 Mobile Platform | publisher = Qualcomm))</ref> Semi-custom derivatives of the Cortex-A53 have been used in Qualcomm's [[Kryo#Kryo 250|Kryo 250]] and [[Kryo#Kryo 260|Kryo 260]] CPUs.<ref name="Snapdragon 632">((cite web | url= https://www.qualcomm.com/products/qualcomm-snapdragon-632-mobile-platform | title = Snapdragon 632 Mobile Platform | publisher = Qualcomm))</ref><ref name="Snapdragon 660">((cite web | url= https://www.qualcomm.com/products/qualcomm-snapdragon-660-mobile-platform | title = Snapdragon 660 Mobile Platform | publisher = Qualcomm))</ref> The [[Starlink]] ground terminals utilize a quad-core Cortex-A53 SoC from STMicroelectronics as its main control unit.<ref>((cite conference 
| url = https://i.blackhat.com/USA-22/Wednesday/US-22-Wouters-Glitched-On-Earth.pdf
| title = Glitched on Earth by Humans: A Black-Box Security Evaluation of the SpaceX Starlink User Terminal
| last1 = Wouters
| first1 = Lennert
| author-link1 = 
| date = 2022-08-10
| publisher = Black Hat USA 2022
))</ref>

The processor is used in the [[ODROID]]-C2<ref>((cite web|url=http://odroid.com/dokuwiki/doku.php?id=en:c2_hardware|title=en:c2_hardware [Odroid Wiki]|website=odroid.com|language=en|access-date=2017-03-26))</ref> and in [[Roku#Fifth generation|Roku]] streaming media players (in the high-end models from 2016 and in all models released between 2017 and 2019). Another notable Cortex-A53 application is the [[Pine64|Pine A64/A64+]] [[single-board computers|single-board computer]].

These cores are used in a 24-core SoC, the [[Socionext|Socionext SynQuacer SC2A11]].

The processor is used in Amazon Fire tablets, including the Fire HD 8 and the Fire HD 10 (the latter also includes [[ARM Cortex-A72|Cortex-A72]] cores) as well as the [[Nintendo Switch]]. It is also used in some [[Amazon Echo Show]] models such as the Echo Show 5, Echo Show 8, and Echo Show 5 (2nd Gen).<ref>((cite web|url=https://www.amazon.com/Staging-Product-Not-Retail-Sale-dp-B08J8FFJ8H/dp/B08J8FFJ8H/|title = All New Echo Show 5 – Compact smart display with Alexa|website = Amazon))</ref>

The processor is used in Fortinet's Fortigate 81F entry-level firewalls.

==See also==
* [[Comparison of ARMv8-A cores]]

==References==
((Reflist))

==External links==
* ((Official website|http://www.arm.com/products/processors/cortex-a/cortex-a53-processor.php))

((Application ARM-based chips))

[[Category:ARM processors]]

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