What is an MPU?
At Microchip an MPU or Micro Processor Unit is high-performance processing device that offers a balance of rich peripherals and user interfaces.
|No embedded non-volatile||embedded RAM and E2PROM|
|High-end architecture||typically traditional von Neumann or Harvard architecture|
|higher performance||low to medium performance|
|included Memory Management Unit (MMU)||no MMU|
|built for multitasking||little or no multitasking support|
32-bit ARM MPU Evolution
SAM9 and SAMA5
SAM9 and SAMA5 Families
MPU Product Families
The SAM9 family is based on the ARM926EJ-S™ processor.
- ARM926EJ-S™ Core Up to 400 MHz
- Memory types:
- SDRAM (Single Data Rate SDRAM), LPDDR, (LP)DDR2
- Raw MLC NAND, 24 bit ECC
- SDCard/Managed NAND Support
- Industrial Solutions
- Dual CAN
- Dual EMAC (SAM9_5Series)
- Up to three USB Ports
- User Interface
- 24-bits LCD Interface
- Graphics Acceleration (9263)
- Camera Interface
- Small Footprint and Die (15x15 or 10x10 packages)
The SAMA5 runs up to 600 MHz. Consuming low power, the SAMA5 ARM Cortex-A5 based MPU is ideal for high-performance, low-power and cost-sensitive industrial applications. These characteristics make it the perfect choice for anything that needs high levels of connectivity, enhanced user interfaces, robust security, or battery operation. The devices come with free Atmel Linux and Android™ ports, Qt SDK, and a complete set of C examples for non-OS users. SOM (System On Modules), PMIC (Power Management IC), memories and kits from multiple software and hardware partners complete this offering.
There are 3 SAMA5D series:
The SAMA5D2 series extends the SAMA5 family by offering great features integrated into lower pin count packages, making it ideal for applications where security, power consumption or space constraints are key considerations.
Operating at 850DMIPS at under 150mW, the SAMA5D3 MPU is ideal for any high-performance, low-power and cost-sensitive industrial application.
The SAMA5D4 MPU operates at 945 DMIPS, includes a 720p hardware video decoder and high level of security making it ideal for any high-performance, secure and cost-sensitive industrial application requiring video playback. Updated A5D4 speed from 528 Mhz to 600 Mhz.
- Cortex A5 with vFPU @500-600 MHz
- L1 Cache (2 x 32kB)
- 128 kB SRAM
- DDR2, LPDDR, LPDDR2
- 24-bit LCD
- Camera interface
- USART, SPI, I2C and I2S
- Linux BSP
Here are some of the major features of the SAMA5D family and where they can be found.
SAMA5D2 Series Summary
SAMA5D3 Series Summary
SAMA5D4 Series Summary
More information is available here: