Apple S1
 The S1 integrated computer, 2.5 cm wide[1] | |
| Produced | From November 13, 2014 to Present |
|---|---|
| Designed by | Apple Inc. |
| Common manufacturer(s) | |
| Max. CPU clock rate | 520 MHz[3] |
| Min. feature size | 28 nm[2][3] |
| Instruction set | ARM[3] |
| Microarchitecture | ARMv7-A compatible[3] |
| Product code | APL0778[4] |
| Cores | 1[3] |
| L1 cache | 32 KB data[3] |
| L2 cache | 256 KB[3] |
| GPU | PowerVR SGX543[5] |
| Application | Apple Watch |
The Apple S1 is the integrated computer in the Apple Watch, and it is described as a "System in Package" (SiP) by Apple Inc.[6]
Samsung is said to be the main supplier of key components, such as the RAM and NAND flash storage, and the assembly itself,[7] but early teardowns reveal RAM and flash memory from Toshiba and Micron Technology.[4]
System-in-Package design
It uses a customized application processor that together with memory, storage and support processors for wireless connectivity, sensors and I/O constitute a complete computer in a single package. This package is filled with resin for durability.[8]
Components
From reverse engineering, the processor handling the Wi-Fi and Bluetooth is a Broadcom BCM43342[9] and the six-axis gyroscope is from STMicroelectronics.[2]
- Apple designed 32-bit ARMv7[10] based application processor APL0778 as the central processing unit (CPU), with an integrated PowerVR SGX543 graphics processing unit (GPU).[5]
- 512 MB DRAM from Elpida, wire bonded on top of the APL0778 CPU
- NFC controller from NXP
- NFC booster chip from AMS
- 8 GB flash from SanDisk and Toshiba
- Wireless charging chip from IDT
- Touch controller from ADI
- Integrated gyro/accelerometer from STMicroelectronics
- BCM43342 Wi-Fi/FM/BT combo chip from Broadcom
- Power management unit (PMU) from Dialog Semiconductor
Announcement
It was announced on 9 September 2014 as part of the "Wish we could say more." event.
Launch date
It made its first appearance within the Apple Watch, which arrived in April 2015.[6][11]
Images
-
This illustration shows the positions of the chips and other components inside the package.[2]
-
This is how large the S1 is compared to the Apple Watch case.[2]
- ^ Cite error: The named reference
AppleTechwas invoked but never defined (see the help page). - ^ a b c d "Introducing the Apple Watch - Movie". Apple. Retrieved 8 October 2014.
See also
- Apple mobile application processors, the range of ARM-based mobile processors designed by Apple for their consumer electronic devices.
- Apple Watch
References
- ↑ "s1_decapped_abi.jpg". 2015-04-30. Retrieved 2016-05-01.
- 1 2 3 Inside the Apple Watch: Technical Teardown
- 1 2 3 4 5 6 7 Ho, Joshua; Chester, Brandon (July 20, 2015). "The Apple Watch Review: Apple S1 Analysis". AnandTech. Retrieved July 27, 2015.
- 1 2 "Apple Watch Insides / PCB Details Revealed for the First Time". ABI Research. Retrieved 30 April 2015.
- 1 2 "Apple Watch runs 'most' of iOS 8.2, may use A5-equivalent processor". AppleInsider. Retrieved 25 April 2015.
- 1 2 "Apple Unveils Apple Watch". Apple Inc. Retrieved 8 October 2014.
- ↑ Samsung Supposedly Wins Orders to Produce Apple Watch Components
- ↑ "Apple.com - Apple Watch - Technology". Apple. Retrieved 8 October 2014.
- ↑ "Broadcom Wins WiFi in Apple Watch?". Chipworks. Retrieved 8 October 2014.
- ↑ Hopper happily opens Apple Watch binaries ('armv7k') to disassemble, says they're 'armv7m'. -- Steve Troughton-Smith
- ↑ Tim Cook: Apple Watch on Schedule to Ship in April
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