iFixit tore down the iPhone 5s last week and gave us a peek at the innards of Apple's new phone. Chipworks has taken that analysis a step further with a detailed look at the chips that power the device.
Starting with the A7, Chipworks has confirmed that the A7 is manufactured by Samsung using the same 28nm High-K Metal Gate (HKMG) process the Korean company uses for its new Exynos 5410 processor. It's slightly smaller than the A6 (77% the size), but provides the equivalent functionality of the previous generation chip.
The M7 turns out to be an interesting component with a 3-axis accelerometer, a 3-axis gyroscope and a 3-axis electronic compass IC. It's manufactured by NXP and sports a Cortex-M3 microcontroller. The part number for the component (LPC18A1) didn't match any on NXP's website, which leads Chipworks to believe the M7 is likely a custom chip built by NXP to Apple's specifications.
Other hardware includes a WiFi module with IEEE 802.11 a/b/g/n, Bluetooth 4.0 + HS, and an integrated FM radio receiver. Rather than go with a newer Broadcom chip that offers 802.11ac, Apple opted use a WiFi module that is similar to the one in the iPhone 5. There's also a Qualcomm 4G LTE modem with a Samsung LTE baseband processor and some Samsung DRAM to store the carrier information. The 8-megapixel camera module has been tentatively identified as a Sony Exmor-RS sensor, but the exact details are not yet known.