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Apple T2 information


Apple T2
General information
LaunchedDecember 14, 2017
DiscontinuedJune 5, 2023
Designed byApple Inc.
Common manufacturer(s)
  • TSMC[1]
Product codeAPL1027
Cache
L1 cachePer core: 126 KB instruction + 126 KB data[1]
L2 cache3 MB shared[1]
Architecture and classification
ApplicationSecurity, Controller
Technology node16 nm[1]
MicroarchitectureARMv8: "Hurricane"/"Zephyr"
ARMv7: Cortex-A7
Instruction setARMv8.1-A: A64, A32, T32
ARMv7-A: A32
Physical specifications
Cores
  • 4 (2× Hurricane + 2× Zephyr)[1]
Products, models, variants
Variant(s)
  • Apple A10
History
Predecessor(s)Apple T1
Successor(s)Apple M1

The Apple T2 (Apple's internal name is T8012)[2] security chip is a system on a chip "SoC" tasked with providing security and controller features to Apple's Intel based Macintosh computers. It is a 64-bit ARMv8 chip and runs bridgeOS.[3][4] T2 has its own RAM and is essentially a computer of its own, running in parallel to and responding to requests by the main computer that the user interacts with.

  1. ^ a b c d e Boldt, Paul (July 11, 2021). "Apple's Orphan Silicon". SemiWiki. Archived from the original on September 22, 2022. Retrieved July 18, 2021.
  2. ^ "T8012". The Apple Wiki. Retrieved 2023-08-14.
  3. ^ Davidov, Mikhail; Erickson, Jeremy (August 8, 2019). "Inside The Apple T2" (PDF). Black Hat USA 2019. Archived (PDF) from the original on June 14, 2021. Retrieved July 11, 2021.
  4. ^ Parrish, Kevin (July 24, 2018). "Apple's T2 chip may be causing issues in iMac Pro and 2018 MacBook Pros". DigitalTrends. Archived from the original on September 18, 2018. Retrieved January 22, 2019. Of all the error messages uploaded to these threads, there is one detail they seem to share: Bridge OS. This is an embedded operating system used by Apple's stand-alone T2 security chip, which provides the iMac Pro with a secure boot, encrypted storage, live "Hey Siri" commands, and so on.

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