A5100 4K UHD Decode SoC
A5100 is a 1.2 GHz HiChip A-series multimedia SoC with up to 256 MB @1333 Mbps external DRAM and H.264 @4K 30 fps decode. It provides HD output + VGA display, RMII Ethernet, and SDIO 3.0 on Linux/RTOS in an eLQFP128 package.
Product Image
Key Specifications
| Item | Spec |
|---|---|
| CPU | 1.2 GHz |
| DRAM | ext. max. 256 MB @1333 Mbps |
| Flash | SPI Flash |
| Video decoder | H.264 @4K 30 fps |
| Display | HD output + VGA |
| Video input | — |
| Audio | I2S in + I2S out / 2ch PCM out / SPDIF out |
| USB | USB 2.0 ×2 |
| SDIO | SDIO 3.0 |
| I2C/UART | 3×I2C + 2×UART, IRRX |
| Ethernet | RMII |
| Wi-Fi | Support |
| SW system | Linux/RTOS |
| Package | eLQFP128 |
Typical Applications
- Network multimedia players
- Ultra-HD phone screen mirroring devices
- Gaming set-top boxes
- Home multimedia centers / karaoke audio systems
Design Notes
- RMII Ethernet supports 4K networked playback and wired mirroring terminals.
- No HD video input or CVBS display; for HD loop-in or CVBS output see A5001 or A5200.
- External DRAM is flexible but must be validated against 4K decode bandwidth per the vendor reference design.