PS1802 is a high-performance general-purpose DSP controller and a full-featured fingerprint recognition system-on-chip (SOC). It operates at a clock frequency of 120MHz with a peak computing power of 480MIPS. It has 156KB RAM, 96KB ROM, and power consumption less than 150mW (@120MHz). It can be widely used in fingerprint recognition, industrial control, audio and video processing, USB, set-top boxes, security and other fields.
The PS1802 SOC is a high‑performance general‑purpose DSP controller that also functions as a full‑feature fingerprint recognition system‑on‑chip. It runs at 120 MHz, delivers up to 480 MIPS, includes 156 KB RAM, 96 KB ROM, and consumes less than 150 mW.
The manual details the SOC’s peripherals – parallel NAND‑compatible port, UART, SPI, configurable USART, 14 GPIO pins, DMA controller, timers, image‑processing accelerator, random‑number generator, and key‑pair generator – as well as boot options, sensor selection, serial flash usage, and development tools. This manual is written in Chinese.
| Core frequency | 120 MHz |
|---|---|
| Peak performance | 480 MIPS |
| RAM | 156 KB |
| ROM | 96 KB |
| Power consumption (peak) | <150 mW @120 MHz |
| Operating temperature | -40 °C to 85 °C |
| Operating voltage | Core 1.8 V, I/O 3.3 V |
| Package | 64‑pin LQFP |
| DMA channels | 8 |
| Timers | 2 general‑purpose timers, 1 watchdog timer |
| Image accelerator | 256 × 288, 256‑level grayscale |
| Random number generator | 32‑bit |
| Key pair generator | Public/Private key pair generator |
| JTAG debug port | IEEE1149.1 compliant |
| PLL | Programmable |
| ESD rating | > ±2 kV |
The SOC supports four boot modes: from UART, from EEPROM, from an ATMEL serial flash, or from internal ROM.
Peak power consumption is below 150 mW when running at 120 MHz.