Key facts
- Brand
- ZLG
- Model
- P89C51RB2
- Documents
- 2
- Languages
- ZH
- Last added
- 2011-10-09
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ZLG P89C51RB2/RC2/RD2 Flash Program Storage User Manual
This manual provides an overview of the P89C51RB2/RC2/RD2 8‑bit microcontroller, its 16 KB/32 KB/64 KB parallel programmable flash, ISP and IAP programming methods, and the built‑in boot ROM that enables UART‑based code loading. It also details the device architecture, including the 80C51 core, instruction set compatibility, and the extended peripheral set.
The document covers pin descriptions, memory organization, timer/counter operation, PCA modules, UART features, power‑saving modes (idle, power‑down), and security (programmable lock bits). Ordering information, package options (PDIP, PLCC, LQFP) and electrical characteristics are also included. This manual is written in Chinese.
ZLG P89C51RB2 specifications
| Flash program memory | 16 KB / 32 KB / 64 KB parallel programmable |
|---|---|
| RAM | Up to 64 KB |
| I/O ports | 4 groups of 8‑bit I/O (32 pins) |
| Timers / Counters | 3 × 16‑bit timers/counters |
| UART | Full‑duplex enhanced UART with frame error detection |
Source: ZLG P89C51RB2/RC2/RD2 Flash Program Storage User Manual
All ZLG P89C51RB2 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How many I/O ports are available on the device?
The microcontroller provides four groups of 8‑bit I/O ports, for a total of 32 I/O pins.
From: ZLG P89C51RB2/RC2/RD2 Flash Program Storage User Manual
What power‑saving modes are provided?
It includes idle mode, power‑down mode, and a static stop mode where the clock can be halted to reduce power consumption.
From: ZLG P89C51RB2/RC2/RD2 Flash Program Storage User Manual