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Apple A4
System on a chip (SoC) designed by Apple Inc. / From Wikipedia, the free encyclopedia
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The Apple A4 is a 32-bit package on package (PoP) system on a chip (SoC) designed by Apple Inc., part of the Apple silicon series, and manufactured by Samsung.[4][5] It was the first SoC Apple designed in-house. The first product to feature the A4 was the first-generation iPad, followed by the iPhone 4, fourth-generation iPod Touch, and second-generation Apple TV.[6]
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General information | |
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Launched | April 3, 2010 |
Discontinued | September 10, 2013 |
Designed by | Apple Inc. |
Common manufacturer | |
Product code | S5L8930X[1] |
Performance | |
Max. CPU clock rate | 800 MHz to 1 GHz |
Cache | |
L1 cache | 32 KB instruction + 32 KB data[2] |
L2 cache | 512 KB[2] |
Architecture and classification | |
Application | Mobile |
Technology node | 45 nm |
Microarchitecture | ARM Cortex-A8 |
Instruction set | ARMv7-A |
Physical specifications | |
Cores |
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GPU | PowerVR SGX535[3] |
History | |
Predecessor | Samsung S5L8920 |
Successor | Apple A5 |
The last operating system update Apple provided for a mobile device containing an A4 (iPhone 4) was iOS 7.1.2, which was released on June 30, 2014 as it was discontinued with the release of iOS 8 in September 2014. The last operating system update Apple provided for an Apple TV containing an A4 (second-generation Apple TV) was Apple TV Software 6.2.1, which was released on September 17, 2014.