 | |
| General information | |
|---|---|
| Launched | December 14, 2017 |
| Discontinued | June 5, 2023 |
| Designed by | Apple Inc. |
| Common manufacturer | |
| Product code | APL1027 |
| Cache | |
| L1 cache | Per core: 126 KB instruction + 126 KB data[1] |
| L2 cache | 3 MB shared[1] |
| Architecture and classification | |
| Application | Security, Controller |
| Technology node | 16 nm[1] |
| Microarchitecture | ARMv8: "Hurricane"/"Zephyr" ARMv7: Cortex-A7 |
| Instruction set | ARMv8.1-A: A64, A32, T32 ARMv7-A: A32 |
| Physical specifications | |
| Cores |
|
| Products, models, variants | |
| Variant | |
| History | |
| Predecessor | Apple T1 |
| Successor | 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.
- ^ 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.
- ^ "T8012". The Apple Wiki. Retrieved 2023-08-14.
- ^ 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.
- ^ 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.