P89LPC930/931 is a single-chip microcontroller that is suitable for many applications that require high integration and low cost. It can meet a variety of performance requirements. P89LPC930/931 adopts a high-performance processor structure, with an instruction execution time of only 2 to 4 clock cycles, 6 times that of standard 80C51 devices. P89LPC930/931 integrates many system-level functions, which can greatly reduce the number of components and circuit board area and reduce system costs.
The P89LPC930/931 is a low‑cost, high‑integration 8‑bit microcontroller designed for applications requiring small size and low power. It integrates flash memory, RAM, UART, SPI, I²C, timers and comparators in a 28‑pin TSSOP package.
The document provides an overview of the device architecture, electrical characteristics, pin assignments, register descriptions and programming procedures, enabling designers to implement and debug the microcontroller in their circuits. This manual is written in Chinese.
| Operating voltage (Vpp) | 2.4 V – 3.6 V |
|---|---|
| Flash memory size | 4 KB or 8 KB |
| RAM size | 256 bytes |
| Maximum CPU clock frequency | 12 MHz |
| Flash programming time | 2 ms |
| Flash erase time | 2 ms |
| Package | 28‑pin TSSOP |
The device operates with a Vpp supply between 2.4 V and 3.6 V.
It offers either 4 KB or 8 KB of flash memory.
The internal RAM capacity is 256 bytes.
The CPU can run up to 12 MHz.