Key facts
- Brand
- ZLG
- Model
- P54X2
- Documents
- 2
- Languages
- ZH
- Last added
- 2011-11-14
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Guangzhou zhouli microcontroller P89C51X2 P89C52X2/54X2/58X2 Manual
This document provides a comprehensive overview of the P89C51X2/52X2/54X2/58X2 series microcontrollers, including their high‑performance static 80C51 core, flash memory options, RAM sizes, I/O ports, timers, and power‑saving modes. It also lists package types and pin‑out diagrams for PLCC, DIP and LQFP packages.
Technical specifications such as flash capacity, operating frequency ranges, voltage limits, and special function registers are presented in detail, along with guidelines for low‑power operation, clock configuration, and test conditions. This manual is written in Chinese.
ZLG P54X2 specifications
| Flash memory (P89C51X2) | 4 KB |
|---|---|
| Flash memory (P89C58X2) | 32 KB |
| RAM (P89C51X2) | 128 B |
| I/O pins | 32 pins |
| Timers / Counters | Three 16‑bit timers/counters |
| Operating frequency (6‑clock mode) | 0 – 20 MHz |
| Operating frequency (12‑clock mode) | 0 – 33 MHz |
Source: Guangzhou zhouli microcontroller P89C51X2 P89C52X2/54X2/58X2 Manual
All ZLG P54X2 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
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
What power‑saving modes does the P87CL52X2/54X2 support?
It supports an idle mode that freezes the CPU while keeping RAM, timers and UART active, and a power‑down mode that retains RAM contents but stops the oscillator and all other functions.
How can the clock mode (6‑clock or 12‑clock) be selected?
The X2 bit in the CKCON register selects the mode: X2 = 0 for 12‑clock mode, X2 = 1 for 6‑clock mode.