User manual for the ZLAN1003, ZLAN1043 and ZLAN1043N IoT single‑chip solutions covering features, hardware design, configuration and troubleshooting.
The ZLAN1003/ZLAN1043/ZLAN1043N series are IoT single‑chip solutions with integrated 10 M/100 M Ethernet, UART interfaces and configurable I/O. The chips provide built‑in TCP/IP conversion, Modbus gateway, HTTP, MQTT and P2P capabilities, allowing rapid development of networked devices without custom firmware.
The manual includes an overview, pin definitions, hardware design guidelines, functional description, working modes, debugging procedures, advanced Modbus features, registration/heartbeat packets, HTTP client functions, P2P communication, parameter configuration, firmware upgrade, electrical characteristics, package dimensions and after‑sales support information. This manual is written in Chinese.
| VCC1.8V range | 0.3 V – 2.16 V |
|---|---|
| VCC3.3V range | 0.3 V – 3.8 V |
| IO voltage range | 0 V – 5.25 V |
| Maximum PIN input current | 20 mA |
| IO high‑level drive current | 4 mA |
| IO low‑level drive current | 4 mA |
| Storage temperature range | -40 °C to 150 °C |
| Maximum current at 3.3 V | 70 mA |
| Maximum current at 1.8 V | 160 mA (high‑speed) / 100 mA (low‑speed) |
| Operating temperature range | -40 °C to 105 °C |
The chip includes a 10 M/100 M Ethernet interface with integrated PHY, a normal‑speed UART, a high‑speed UART and configurable I/O pins.
Yes, ZLAN1043 and ZLAN1043N support Modbus gateway features, including ModbusRTU‑to‑ModbusTCP conversion and both stored and non‑stored modes.
The devices are supplied in an 80‑pin lead‑free LQFP package.