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Overview
This multi-core SoC is built around three ARM11™ MPCores™ delivering excellent processing performance up to 1440MIPS (when operating at 400MHz) and integrates on-chip high-performance graphics functions as well as parallel ATA, SD card interface, and video ADC functions. It delivers on a single chip audio routing functionality employing multi-channel I2S and a MediaLB interface.
System Block Diagram
Specifications
| Item | EC-4255 Specifications |
|---|---|
| Type name | uPD35003-LN6 |
| Power supply voltage | 1.2 V (internal)/3.3 V, 1.5 V (external) |
| Maximum operating frequency | 400MHz |
| Processing performance | 1440MIPS (at 400 MHz) |
| CPU core | ARM11™ MPCore™×3 |
| On-chip RAM | Local Memory: 8 Kbytes |
| Cache memory | 32 Kbytes instruction/32 Kbytes data (each CPU), 4-way set associative type, built-in snoop control unit for cache coherency |
| External memory | Support for connecting a channel of DDR3-SDRAM (DDR1066) modules with 16-bit bus width Max. operating frequency: 533 MHz Support for direct connection of SRAM or ROM to expansion bus |
| Extension bus | Address space: 64 Mbytes × 6 |
| Main on-chip peripheral functions |
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| Power-down modes |
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| Package | 632-pin BGA （25mm×25mm） |
*ARM is a registered trademark of ARM Ltd. ARM11 and MPCore are trademarks of of ARM Ltd.
All other trademarks or registered trademarks are the property of their respective owners.
