China Mobile IoT M5311 NB-IoT Module Hardware Design Manual

This datasheet details the hardware interface specifications, electrical characteristics, and mechanical dimensions for the China Mobile IoT M5311…

China Mobile IoT M5311 NB-IoT Module Hardware Design Manual - cover page
Brand
China Mobile IoT
Category
Other Electronics
Document type
Datasheet
Language
Chinese
Pages
34
File format
PDF
File size
2.6 MB
Published
16 October, 2026
Updated
16 October, 2026
MD5 checksum
BE8E17CC3D03A61321D6D2B8EFBF6E29
PDF
China Mobile IoT M5311 NB-IoT Module Hardware Design Manual PDF

About this manual

The document defines the hardware design manual for the M5311 module, an industrial-grade three-band NB-IoT wireless device. It covers power supply requirements, operating modes, pin descriptions, serial interfaces, SIM card connectivity, ADC functions, and RF specifications. The module supports Band 3, Band 5, and Band 8 frequencies and complies with 3GPP Release 14 standards. This manual is written in Chinese.

What's inside

  • Introduction
  • Overview and Performance
  • Functional Block Diagram
  • Pin Descriptions
  • Power Supply
  • Serial Interfaces
  • SIM Card Interface
  • RF Specifications
  • Mechanical Dimensions
  • Storage and Production

Specifications

Operating Temperature-40°C ~ +85°C
Supply Voltage Range3.3V ~ 4.2V
Deep Sleep Current3 uA
Operating BandsBand3, Band5, Band8
Transmit Power23dBm ±2dB
Physical Dimensions16mm x 18mm x 2.7mm
Package TypeLCC (40 pins)

Frequently asked questions

What is the recommended supply voltage for the M5311?

The recommended supply voltage is 3.8V.

Does the M5311 support SIM cards with built-in ICs?

Yes, it supports both standard SIM cards and built-in SIM ICs operating at 1.8V.

What is the storage temperature range for the module?

The storage temperature range is -45°C to +95°C.

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