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MPU System in Packages (SiPs)

The Arm® Cortex®-A5-based SAMA5D2 SiP integrates memory, either DDR2 or LPDDR2 depending on the device, in a single package, simplifying designs by removing high-speed memory interface constraints from a Printed Circuit Board (PCB). The impedance matching is done in the package as opposed to manually during development, so the system will function properly at normal and low-speed operation. Due to its higher level of system integration, it is particularly well-suited for space-constrained applications. As with any of Microchip’s products, the SAMA5D2 SiPs are backed by Microchip’s customer-driven obsolescence policy, which removes supply risk, including LPDDR2/DDR2 supply, by ensuring availability to customers for as long as needed.

ATSAMA5D225C-D1M

SAMA5D225

  • 128 Mbit DDR2
  • Supports Bare Metal and RTOS

ATSAMA5D27C-D5M

SAMA5D27

  • 512M and 1 Gbit DDR2
  • Supports Linux
ATSAMA5D27C-LD2G

SAMA5D27

  • 1G and 2 Gbit LPDDR2
  • Supports Linux
ATSAMA5D28C-D1G

SAMA5D28

  • 1 Gbit DDR2 or 1G and 2 Gbit LPDDR2
  • PCI pre-certified

Which memory density should you choose?

Microchip offers SiPs with a range of memory types, both LPDDR2 and DDR2, allowing you to precisely fit your application’s memory needs. Four memory sizes (128 Mb, 512 Mb, 1 Gb and 2 Gb) are available for the SAMA5D2 SIP and optimized for bare metal, Real-Time Operating System (RTOS) and Linux implementations. For SAMA5D2 Linux-based applications the memory density sweet spot is 512 Mb for connectivity-centric applications and 1 Gb for applications with a Graphical User Interface. The 1 Gb and 2 Gb options offer headroom for future upgrades and initial software development prior to code optimization. For RTOS or Bare Metal applications, 128 Mb is generally more than sufficient.

LPDDR2 Boosts Performance and Lowers Power Consumption

LPDDR2 SiPs offer lower power operation and improved performance, particularly in high-bandwidth applications such as graphics, by offering the full 32-bit databus bandwidth between the SAMA5D2 MPU and the DDR memory. You can dramatically reduce system power consumption and increase memory bandwidth for only a small additional cost compared to DDR2 SiPs.

DDR2 Simplifies Power Management

DDR2 has simpler power management than DDR3(L) or LPDDR2. DDR3(L) adds an additional 1.5V or 1.35V power supply requirement to your system while LPDDR2 only requires an additional 1.2V.