Arm Holdings
Type	Public
Founded	November 27, 1990
Founder	Jamie Urquhart Mike Muller Tudor Brown Lee Smith John Biggs Harry Oldham Dave Howard Pete Harrod Harry Meekings Al Thomas Andy Merritt
Headquarters	Cambridge, England
Website	http://www.arm.com

Arm Holdings, usually simply Arm (previously ARM), is a British multinational semiconductor and software design company. ARM was spun-off from Acorn Computers in November 1990 as Advanced RISC Machines, Ltd. (ARM, Ltd.) as a joint venture between Acorn Computers, Apple Computer, and VLSI Technology.

Design Groups

Arm processors can largely be grouped into the three design teams that design them in parallel:

• Austin (Texas)
  • Cortex-A8, Cortex-A15, Cortex-A57, Cortex-A72, Cortex-A76, Cortex-A77, Cortex-A78
  • Cortex-X1, Cortex-X2, Cortex-X3
  • Neoverse N1, Neoverse N2, Neoverse V1
• Sophia-Antipolis (France)
  • ARM11, Cortex-A9, Cortex-A12, Cortex-A17, Cortex-A73, Cortex-A75
• Cambridge (UK)
  • Cortex-A5, Cortex-A7, Cortex-A53, Cortex-A35, Cortex-A55

Microarchitectures

Classic

Classic

• ARM1
• ARM2
• ARM250
• ARM3
• ARM6
• ARM7
• ARM8
• ARM9
• ARM10
• ARM11

Note: ARM4 & ARM5 would've been during the time Acorn was spun off as ARM Holdings. The two versions were skipped.

Cortex

Real-Time

Storage/Modem:

• Cortex-R7
• Cortex-R8
• Cortex-R82

Functional Safety:

• Cortex-R4 (Serval-E)
• Cortex-R5
• Cortex-R52

Microcontroller

LP/Area:

• Cortex-M0 (Swift)
• Cortex-M0+ (Flycatcher)
• Cortex-M23 (Grebe)

Performance/efficiency:

• Cortex-M3 (Sandcat)
• Cortex-M4 (Merlin)
• Cortex-M33 (Teal)
• Cortex-M35P (Tahan)

High Performance:

• Cortex-M7 (Pelican)
• Cortex-M55 (Yamin)

FPGA:

• Cortex-M1 (Proteus)

Mainstream

• Cortex-A8 (Tiger)
• Cortex-A9 (Falcon)

ULP:

• Cortex-A5 (Sparrow)
• Cortex-A34 (Metis)
• Cortex-A35 (Mercury)
• Cortex-A32 (Minerva)

Little:

• Cortex-A7 (Kingfisher)
• Cortex-A53 (Apollo)
• Cortex-A55 (Ananke)
• Cortex-A510 (Klein)
• Hayes

Mid-Range

• Cortex-A12 (Owl)
• Cortex-A17 (Owl)

Big:

• Cortex-A15 (Eagle)
• Cortex-A57 (Atlas)
• Cortex-A72 (Maia)
• Cortex-A73 (Artemis)
• Cortex-A75 (Prometheus)
• Cortex-A76 (Enyo)
• Cortex-A77 (Deimos)
• Cortex-A78 (Hercules)
• Cortex-A710 (Matterhorn)
• Cortex-A715 (Makalu)
• Hunter
• Chaberton

• Cortex-A78C (Hercules-C)

Bigger:

• Cortex-X1 (Hera)
• Cortex-X2 (Matterhorn-ELP)
• Cortex-X3 (Makalu-ELP)
• Hunter-ELP
• Chaberton-ELP

• Cortex-X1C (Hera-C)

Autonomous Machines:

• Cortex-A76AE (Enyo-SL)
• Cortex-A78AE (Hercules-AE)
• Cortex-A65AE (Helios-SL)

Neoverse

Servers

Performance

• Cosmos
• Neoverse N1 (Ares)
• Neoverse N2 (Perseus)
• Poseidon

HPC

• Neoverse V1 (Zeus)
• Demeter

Throughput

• Neoverse E1 (Helios)

Other

Other IP

SecurCore:

• SC000
• SC100
• SC300

Neural Processors:

• ARM MLP
• Ethos

GPUs

• Mali
• Immortalis

Architectures

GPU:

• Heimdall
• Bifrost

ISAs

• ARM

Other topics

• big.LITTLE
• DynamIQ
• Coherent Mesh Network (CMN)

See Also

• Acorn Computers