The ZWIR4512 enables secure low-power wireless IPv6 communication for sensors and small devices. Renesas provides a user-programmable, royalty-free 6LoWPAN stack with mesh routing capability with the ZWIR4512. 6LoWPAN is an Internet Engineering Task Force (IETF) standard to build wireless, low-power IP-based sensor and device networks. These networks can easily be integrated into existing information technology infrastructure or can operate autonomously. Secure communication is provided by standard-compliant implementations of the Internet Protocol Security (IPSec) protocol suite and the Internet Key Exchange Protocol version 2 (IKEv2), which enable highly secure end-to-end communication, including over unsecure network nodes. The module is powered by an Arm® Cortex™ M3 (trademark of Arm Ltd.) microcontroller and provides a rich set of GPIO and peripheral interfaces. Up to 192kB of flash memory and 32kB of RAM are available for the user application. Different low-power modes are provided to save energy in battery-operated devices. The modules provide superior radio properties without the need for complicated external RF design.


  • Several 5V tolerant I/Os available
  • Low current consumption: 3.7μA Standby Mode, 13.5mA Receive Mode, 18.5mA Transmit Mode at 0 dBm
  • Two modulation schemes: BPSK (20kBps EU, 40kBps US) and O-QPSK (100kBps EU, 250kBps US)
  • Receiver sensitivity: up to -110dBm
  • TX output power: up to 10dBm
  • ETSI/FCC compliant
  • Serial command interface with built-in security and over-the-air update functionality
  • Royalty-free library bundle of custom firmware
  • 6LoWPAN communication library with mesh routing capability
  • IPSec & IKEv2 security libraries
  • Over-the-air update library
  • Several peripheral libraries

Product Options

Part Number Part Status Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
Active 0 -20 to 70°C Reel
Active 0 -20 to 70°C Reel
Active 0 -20 to 70°C Reel
Active 0 -20 to 70°C Reel
Active 0 -20 to 70°C Reel
Active 0 -20 to 70°C Reel
Active 0 -20 to 70°C Reel
Active 0 -20 to 70°C Reel

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ZWIR4512 Short-form Datasheet Short Form Datasheet PDF 522 KB
ZWIR4512 Datasheet Datasheet PDF 1022 KB
User Guides & Manuals
IDT CAD Altium Libraries for AID Products Rev 20160819 Guide ZIP 1.20 MB
ZWIR451x Programming Guide Manual PDF 1.46 MB
Application Notes & White Papers
ZWIR4512 Application Note - Development Kit Getting Started Guide Application Note PDF 712 KB
ZWIR45xx Application Note - Security using IPsec and IKEv2 in 6LoWPANs Application Note PDF 456 KB
ZWIR45xx Application Note - NetMA Protocol Application Note PDF 856 KB
ZWIR451x Application Note - Over-the-Air Updates Application Note PDF 271 KB
ZWIR45xx Application Note - Getting Started with Network Gateways Application Note PDF 395 KB
ZWIR45xx Software Installer Rev. 1971 (zip) Software ZIP 18.11 MB
ZWIR45xx Software Rev. 1.9.1971 (zip) Software ZIP 6.57 MB
ZWIR451x Development Board Schematic Rev. 1.00 Schematic PDF 890 KB
ZWIR45XX - Setting Up an Open Source Development Environment Technical Brief PDF 342 KB
ZWIR4512 - Migration Guide for Updating to ZWIR4512 Library V1.9 Technical Brief PDF 490 KB
ZWIR45xx Serial Command Interface (SCI) User Guide Technical Brief PDF 889 KB

Boards & Kits

Part Number Title Type Company
ZWIR4512-KIT Development Kit for ZWIR4512 Development Renesas