A system-on-chip (SoC) is an integrated circuit (IC) that integrates many components or functions like multi-core processor, memory blocks, and analog/external interfaces into a single chip.


Apple A9 SoC processor

The Apple A9 is a SoC, designed by Apple Inc, appeared in the iPhone 6S and 6S Plus which were introduced on September 9, 2015. The A9 features an Apple-designed 64-bit 1.85 GHz ARMv8-A dual-core CPU called Twister and a GPU IMG PowerVR GT7600. The A9 in the iPhone 6S has 2 GB of LPDDR4 RAM included in the package (System-in-Package, SiP). Apple A9 chips are fabricated by two companies: Samsung and TSMC.

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Apple A9 processor fabricated by TSMC 16-nm FinFET (104.5 mm2 large) and Samsung 14-nm FinFET (96 mm2 large).

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Apple Apple A10 Fusion processor fabricated by TSMC 16-nm FinFET (125 mm2 large). The A10 is packaged in a new InFO packaging from TSMC.

SoC vs. SiP