WA_DEV_W218_PTS_002 Rev 005 Page 5 of 109
Product Technical Specification &
Customer Design Guidelines
Rev
List of Up dates
§ 5.5.3: Added this section.
Made grammatical and other punctuation corrections throughout the
document.
Updated links and references.
§ 3.8: Changed the number of General Purpose I/Os from 11 to 3.
§ 3.9.2 Added a Caution box after the table.
§ 3.10.4.1.1 and 3.104.1.2: Removed the GND within the WISMO218 in the
figures (figures 15, 16, 17 and 18)
§ 3.10.5.5: Added additional information in the Caution box regarding the ESD
sensitivity of the audio interface.
§ 5.2.2: Changed the recommended connection when not in use value from
“open” to “Ground” for pin #5, AUX-ADC0.
§ 3.10.5.5:
Separated the audio track figure and the differential connection figure
Labeled the differential connection figure as Figure 21
Added Figure 22: single-ended audio connection
§ 5.4: Updated the Class B temperature range from -30 to +75 to -40 to +85.
§ 5.5.3: Updated the figure to display it rotated 90 degrees counterclockwise.
Updated text wording, checked for spelling and grammar, updated links and
captions throughout the document.
§ 3.2.2: Updated the value of VBATT’s Ripple max.
§ 3.10.1.1: Updated table values.
§ 3.10.2.1.1: Updated table values.
§ 3.10.4.1.1: Deleted the description for Z2.
§ 3.13.3.1: Changed “de-assert” to “release” (re: recommendation for the
ON/~OFF signal)
§ 3.14: Updated reference to section 3.13.3.1.
§ 4.1.4: Updated Caution text.
§ 3.10.1: Updated the DC equivalent circuit.
§ 3.10.1.1: Updated the table values and notes section.
§ 3.10.4.1.1 and 3.10.4.1.2: Updated figures from 2.85V to 2.4V
§ 3.13.3.1: Updated figure and included the Tready table just beneath the
figure.
§ 3.17.3: Updated figure and updated descriptive text below the figure.
§ 3.13.3.1: Updated the figure to include ramp up time of VBAT.
Updated the Pin Description table (Table 7) of the Main Serial Link (UART)
subsection of section 3: Interfaces.
Added List of Figures and List of Tables.
Updated Figure 31.
Added Trampup values in the Power on sequence table.
Added Figure 46.
Moved Recommended PCB Landing Pattern after Figure 47.