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Apple SiP in Apple Watch From Wikipedia, the free encyclopedia
The Apple S1 is the integrated computer in the Apple Watch, and it is described as a "System in Package" (SiP) by Apple Inc.[7]
General information | |
---|---|
Launched | 13 November 2014 |
Discontinued | 7 September 2016 |
Designed by | Apple Inc. |
Common manufacturer | |
Product code | APL0778[3] |
Performance | |
Max. CPU clock rate | 520 MHz[4] |
Cache | |
L1 cache | 32 KB data[4] |
L2 cache | 256 KB[4] |
Architecture and classification | |
Application | Apple Watch |
Technology node | 28 nm[4][2] |
Instruction set | ARMv7-A[4] |
Physical specifications | |
Cores |
|
GPU | PowerVR SGX543[5] |
Products, models, variants | |
Variant | |
History | |
Successor | Apple S2 |
General information | |
---|---|
Launched | September, 2016 |
Discontinued | September, 2018 |
Designed by | Apple Inc. |
Performance | |
Max. CPU clock rate | 520 MHz[6] |
Architecture and classification | |
Application | Apple Watch Series 1 |
Microarchitecture | ARMv7-A compatible[6] |
Instruction set | ARM[6] |
Physical specifications | |
Cores |
|
GPU | PowerVR Series 6 'Rogue'[6] |
History | |
Predecessor | Apple S1 |
Samsung is said to be the main supplier of key components, such as the RAM and NAND flash storage, and the assembly itself,[8] but early teardowns reveal RAM and flash memory from Toshiba and Micron Technology.[3]
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.[9]
From reverse engineering, the processor handling the Wi-Fi and Bluetooth is a Broadcom BCM43342[10] and the six-axis gyroscope is from STMicroelectronics.[2]
The SiP in Apple Watch Series 1 is called S1P and looks superficially identical to the S1, but in reality is an S2 minus the on-chip GPS functionality. It contains the same dual-core CPU with the same new GPU capabilities as the S2 making it about 50% faster than the S1.[12][13]
The S1 was announced on 9 September 2014 as part of the "Wish we could say more" event.
The S1P was announced on 7 September 2016 as part of the "See you on the 7th" event.
The S1 made its first appearance within the Apple Watch, which arrived in April 2015.[7][14] The S1 was discontinued with the launch of Apple Watch Series 1, containing the S1P.
The S1P was released with the Apple Watch Series 1 on 16 September 2016.[13]
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