Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes

MPU System in Packages (SiPs)

To simplify your designs, the SAMA5D2 and SAM9X60 SiPs integrate SDRAM, DDR2 or LPDDR2 memory, depending on the device, in a single package, which removes high-speed memory interface constraints from a Printed Circuit Board (PCB). The impedance matching is done in the package rather than manually during development, so the system will function properly at normal and low-speed operation. With their higher level of system integration, these SiPs are particularly well suited for space-constrained applications. To reduce supply risk, they are also backed by Microchip’s client-driven obsolescence practice of continuing to supply a product for as long as possible and while demand for the product exists.

SAMA5D27/28 SiPs

ATSAMA5D225C-D1M

Key Features

  • Arm® Cortex®-A5 based SAMA5D2 processor
  • Memory options:
    • 1 or 2 Gb LPDDR2 DRAM
    • 128 Mb, 512 Mb or 1 Gb DDR2 DRAM
  • Industrial temperature range (-40 to 85°C)

SAM9X60 SiPs

ATSAMA5D27C-D5M

Key Features

  • ARM926EJ-S™ based SAM9X60 processor
  • Memory options:
    • 512 Mb or 1 Gb DDR2 DRAM
    • 64 Mb SDRAM
  • Industrial temperature range (-40 to 85°C)

Which Memory Density Should You Choose?

We offer SiPs with LPDDR2, DDR2 and SDRAM memory types, allowing you to precisely fit your application’s memory needs. Five memory sizes (64 Mb, 128 Mb, 512 Mb, 1 Gb and 2 Gb) are available and optimized for bare metal, Real-Time Operating System (RTOS) and Linux® OS implementations. For 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 (GUI). 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, 64 Mb and 128 Mb of memory is generally more than sufficient.

LPDDR2 Boosts Performance and Lowers Power Consumption

SiPs with LPDDR2 memory 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 as compared to DDR2 SiPs.

DDR2 Simplifies Power Management

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