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, 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-A15, Cortex-A57, Cortex-A72, Cortex-A76
• Sophia-Antipolis (France)
  • Cortex-A9, Cortex-A12, Cortex-A17, Cortex-A73, Cortex-A75
• Cambridge (UK)
  • Cortex-A5, Cortex-A7, Cortex-A53, Cortex-A35, Cortex-A55

Microarchitectures

Classic

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

• 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

Functional Safety:

• Cortex-R4
• Cortex-R5
• Cortex-R52

Microcontroller:

LP/Area:

• Cortex-M0
• Cortex-M0+
• Cortex-M23

Performance/efficiency:

• Cortex-M3
• Cortex-M4
• Cortex-M33
• Cortex-M35P

High Performance:

• Cortex-M7

FPGA:

• Cortex-M1

Mainstream:

ULP:

• Cortex-A5
• Cortex-A7 (Kingfisher)
• Cortex-A35 (Mercury)
• Cortex-A32

Little:

• Cortex-A8
• Cortex-A9
• Cortex-A12 (Owl)
• Cortex-A17
• Cortex-A53 (Apollo)
• Cortex-A55 (Ananke)
• Helios

Big:

• Cortex-A15 (Eagle)
• Cortex-A57 (Atlas)
• Cortex-A72 (Maya)
• Cortex-A73 (Artemis)
• Cortex-A75 (Prometheus)
• Cortex-A76 (Enyo)
• Deimos
• Hercules

Autonomous Machines:

• Cortex-A76AE

Neoverse

Servers:

• Cosmos
• Ares
• Zeus
• Poseidon

Other

SecurCore:

• SC000
• SC100
• SC300

Neural Processors:

• ARM ML

Architectures

GPU:

• Heimdall
• Bifrost

ISAs

• ARM

Other topics

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

See Also

• Acorn Computers