Key facts
- Brand
- ZLG
- Model
- 89C52
- Category
- Other Electronics
- Documents
- 2
- Languages
- ZH
- Last added
- 2012-02-12
Start here
ZLG P89C51/89C52/89C54/89C58 Microcontroller Manual
The P89C5x series are 8‑bit microcontrollers compatible with the 80C51 instruction set, built on an advanced CMOS process. They offer flash program memory, multiple I/O ports, UART, timers, and various low‑power operation modes.
The manual covers ordering information, detailed pin‑out tables, special function registers, flash memory characteristics, oscillator and reset circuits, and the three low‑power modes (idle, power‑down, and ONCE). It also explains programmable clock output and provides mechanical dimensions for PLCC44, DIP40, and LQFP44 packages. This manual is written in Chinese.
ZLG 89C52 specifications
| Flash memory size | 4 KB – 32 KB |
|---|---|
| RAM size | 128 B – 8 KB |
| Maximum operating frequency | 33 MHz |
| Operating voltage | 5 V (0 °C – 70 °C) |
| I/O ports | 4 × 8‑bit ports (P0‑P3) |
| UART type | Full‑duplex enhanced UART |
| Timers | 3 × 16‑bit timers |
| Package types | PLCC44, DIP40, LQFP44 |
All ZLG 89C52 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum operating frequency?
The microcontroller can run up to 33 MHz.
What low‑power modes does the microcontroller support?
It supports an idle mode that freezes the CPU while keeping RAM, timers and UART active, and a power‑down mode that stops the oscillator and all internal functions, preserving RAM contents.
From: Guangzhou zhouli microcontroller P89C51X2 P89C52X2/54X2/58X2 Manual
How many I/O pins are available on the P89C51X2 series?
The series provides 32 I/O pins.
From: Guangzhou zhouli microcontroller P89C51X2 P89C52X2/54X2/58X2 Manual