Conceived by Sunplus Technology in collaboration with Tibbo Technology, PLUS1 takes all the sophisticated elements typically found in modern industrial-grade embedded Linux chips, adds a plethora of features targeting IoT and industrial control applications, and delivers the resulting design in a simple microcontroller-like package that needs few external components, simplifies the schematic diagram, and reduces the PCB complexity.
| Item | Value |
| CPU | Cortex-A7 Quad-core 1GHz |
| 2nd CPU | ARM926 real-time core |
| 3nd CPU | 8051 low-power core |
| RAM | 512MB (SP7021-IF) DDR3 DRAM |
| ROM | external (SPI NAND, SPI NOR, eMMC, BCH ECC) |
| Power supply | Single 3.3V power |
| Package | LQFP-176 20x20mm (body) |
| Temp. | -40°C to 85°C |
| Interfaces | 2x PinMuxable Ethernet MACs 4x PinMuxable UARTs with 128-byte TX and RX FIFOs 4x PinMuxable SPI ports with 8-byte TX and RX FIFOsx CAN 4x PinMuxable I2C ports with 32-byte TX and RX FIFOsx UART |
| Ports/peripherals | Flash interface (eMMC, SPI NAND, SPI NOR) PinMuxable SD2.0 interface PinMuxable SDIO (SD2.0) I/F for connecting a Wi-Fi/BT module Two OTG USB2.0 ports with Linux boot, USB video class support Two PinMuxable 4-channel PWM modules Four PinMuxable timers/counters Four PinMuxable capture modules |
| OS support | Yocto project LINUX |
| Model | RAM | Availability |
| SP7021-IF | 512 MB | in production |
