Apple A4
The Apple A4 is a 32-bit package on package (PoP) system on a chip (SoC) designed by Apple Inc. and manufactured by Samsung. 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.
| General information | |
|---|---|
| Launched | April 3, 2010 |
| Discontinued | September 10, 2013 |
| Designed by | Apple Inc. |
| Common manufacturer(s) |
|
| Product code | S5L8930X |
| Performance | |
| Max. CPU clock rate | 800 MHz to 1 GHz |
| Cache | |
| L1 cache | 32 KB instruction + 32 KB data |
| L2 cache | 512 KB |
| Architecture and classification | |
| Application | Mobile |
| Technology node | 45 nm |
| Microarchitecture | ARM Cortex-A8 |
| Instruction set | ARMv7-A |
| Physical specifications | |
| Cores |
|
| GPU(s) | PowerVR SGX535 |
| History | |
| Predecessor(s) | Samsung S5L8920 |
| Successor(s) | 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.
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