Apple iPad: no LPDDR2?
April 12, 2010
By now it seems that anyone with an engineering degree has probably read 2 or 3 teardown reports on Apple’s iPad. Few that I have seen so far talk about the DRAM memory subsystem – and that could be because the DRAM was hidden on top of Apple’s A4 processor.
Chipworks.com has torn down Apple’s A4 processor package and reports that the DRAM subsystem consists of two Samsung LPDDR1 1Gbit memories in package-on-package (PoP) configuration. The PoP allows for the DRAM to sit on top of the application processor and the whole thing has been marked on top with Apple’s A4 logo. There’s a great cross-sectional photo of the PoP system showing the A4 processor underneath and the two DRAM dice on top.
Related Semiconductor IP
- Rad-Hard GPIO, ODIO & LVDS in SkyWater 90nm
- 1.22V/1uA Reference voltage and current source
- 1.2V SLVS Transceiver in UMC 110nm
- Neuromorphic Processor IP
- Lossless & Lossy Frame Compression IP
Related Blogs
- What's in the A5 processor powering Apple’s iPad 2?
- what made Apple design the A4 processor?
- iPad A4 == Intrinsity?
- The Man Who Thinks Apple Will Buy ARM
Latest Blogs
- Building Smarter, Faster: How Arm Compute Subsystems Accelerate the Future of Chip Design
- MIPS P8700 RISC-V Processor for Advanced Functional Safety Systems
- Boost SoC Flexibility: 4 Design Tips for Memory Subsystems with Combo DDR3/4 Interfaces
- High Bandwidth Memory Evolution from First Generation HBM to the Latest HBM4
- Keeping Pace with CXL Specification Revisions