7 Document Revision History

The revision history describes the changes that were implemented in the document. The changes are listed by revision, starting with the most current publication.

Table 7-1. Document Revision History
Revision	Date	Section	Description
C	03/2025	WILCS02IC and WILCS02 Module Features	Added compatibility for Wi-Fi® 6/7 2.4 GHz band
		Device Overview	Updated “WILCS02 Module Block Diagram”
		Basic Connection Requirement	Updated “WILCS02 Module Basic Connection and Interface Diagram”
		Pin Details of WILCS02IC, Pin Details of WILCS02 Module	Updated the pin description
		SDIO Controller and SDIO-SPI AC Timing Specifications	Updated the section and figure title
		External Antennas	Updated “WILCS02 Module Approved External Antenna List with Antenna Gain” table
		Appendix A: Regulatory Approval, Japan, Korea, Taiwan	Added regulatory approval details for Japan, Korea and Taiwan
B	09/2024	Document	Updated document title as “WILCS02 Family Data Sheet”
		Introduction	Removed support for the voltage range of 1.8-3.6V Editorial updates
		WILCS02IC and WILCS02 Module Features	Removed hardware based low power modes Removed 1.8-3.6V operating voltage for IC and Module Editorial updates
		WILCS02IC Ordering Information	Added note for Tray packing Updated Figure 1-1 for packaging Tray/Tape&Reel
		WILCS02 Module Ordering Information	Updated ordering code in Table 1-2 Updated Figure 1-2 for packaging Tray/Tape&Reel Added note for Tray packing
		Device Overview	Updated Figure 2-1
		Pin Details of WILCS02IC	Updated Figure 2-2 to top view Updated Table 2-1 Updated Table 2-1 notes
		Pin Details of WILCS02 Module	Updated Figure 2-3 Updated Table 2-2 Updated Table 2-2 notes
		Basic Connection Requirement	Updated Figure 2-4 Removed Configuration Details table
		Power Supply Pin	Updated Figure 2-5 Updated content as per the modified Figure 2-5
		Device Firmware Update	Updated Figure 2-7
		Interface with Host Microcontroller	Updated Figure 2-8 Added Figure 2-9
		Master Clear (MCLR) Pin	Updated Figure 2-6 Removed note referenced for the previous image
		WILCS02 Module Routing Guidelines	Updated Figure 2-12
		External Antennas	Updated Table 2-4 Added a note to refer the calibration guide for post-calibration steps
		WILCS02IC Absolute Maximum Ratings	Updated Table 3-1
		Thermal Specifications	Updated Thermal Operating Conditions Updated Recommended Operating Voltages
		I/O Pin DC Electrical Specifications	Updated Table 3-6
		WILCS02IC Wi-Fi® Current Consumption	Updated Table 3-7
		External XTAL POSC 40 MHz AC Electrical Specifications	Updated Table 3-8
		SPI Electrical Specifications	Updated SPI Client CPHA=0 Timing Diagram Updated SPI Client CPHA=1 Timing Diagram Updated SPI Client Mode Electrical Specifications
		SDIO Controller and SDIO-SPI AC Timing Specifications	Updated Table 3-9
		Power-on Reset AC Electrical Specifications	Modified the symbol TRST to T(nRST)
		Extreme Deep Sleep (XDS) Current Consumption	Removed this section
		WILCS02IC Receiver and Transmitter Characteristics Graphs	Updated first four plots
		Thermal Specifications	Updated V_DDIO voltage range and conditions
		Wi-Fi® Current Consumption	Updated Table 3-17
		WILCS02 Module Receiver and Transmitter Characteristics Graphs	Updated the plots
		WILCS02IC Package Marking	Updated Figure 4-1
		WILCS02 Module Packaging Marking	Added FCC and IC ID details Updated Figure 4-2
		WILCS02 Module Packaging Dimension	Updated package dimension
		Appendix A: Regulatory Approval	Updated Great Britain/UKCA to the list
		I/O Pin DC Electrical Specifications	Updated Table 3-6
		Appendix A: Regulatory Approval	Added Regulatory Chapter
A	03/2024	Document	Initial Revision