P87LPC778 is a 20-pin single-chip microcontroller with features such as high integration, low cost, and the ability to meet various performance requirements.
The P87LPC778 is a 20‑pin TSSOP microcontroller designed for high‑integration, low‑cost applications. It features an enhanced 80C51‑compatible CPU that runs at twice the speed of a standard 80C51, a 4‑channel 8‑bit A/D converter, 4‑channel 10‑bit PWM, and two analog comparators.
Key functional blocks include an internal programmable oscillator, UART, full‑duplex communication ports, watchdog timer with independent oscillator, and configurable I/O ports with keyboard interrupt capability. Detailed electrical characteristics, pin assignments, and special function registers are provided for designers. This manual is written in Chinese.
| Package | TSSOP20 (20‑pin) |
|---|---|
| ADC Channels | 4 channels, 8‑bit |
| PWM Channels | 4 channels, 10‑bit |
| CPU Speed | 2× standard 80C51 |
| Instruction Execution Time (20 MHz) | 300–600 ns |
It uses a 20‑pin TSSOP package.
The microcontroller provides four 8‑bit ADC channels.