diff --git a/hardware_design/pcb/Voicecard-SMRMU-v02.brd b/hardware_design/pcb/Voicecard-SMRMU-v02.brd
index cf8c71d..f3f76d1 100644
--- a/hardware_design/pcb/Voicecard-SMRMU-v02.brd
+++ b/hardware_design/pcb/Voicecard-SMRMU-v02.brd
@@ -61701,7 +61701,7 @@ Source: http://www.osram.convergy.de/ ... Lb_q993.pdf</description>
 <attribute name="SPICEPREFIX" value="C" x="41.783" y="33.02" size="1.778" layer="27" rot="R90" display="off"/>
 <attribute name="VALUE" x="43.307" y="32.258" size="0.8128" layer="27" font="vector" rot="R90"/>
 </element>
-<element name="IC7" library="jhbruhn-ic" package="SOIC16N" value="4052D" x="43.18" y="14.605" smashed="yes" rot="R270">
+<element name="IC7" library="jhbruhn-ic" package="SOIC16N" value="CD4052B" x="43.18" y="14.605" smashed="yes" rot="R270">
 <attribute name="NAME" x="41.275" y="19.812" size="0.8128" layer="25" font="vector"/>
 <attribute name="VALUE" x="42.545" y="19.05" size="0.8128" layer="27" font="vector" rot="R270"/>
 </element>
diff --git a/hardware_design/pcb/Voicecard-SMRMU-v02.sch b/hardware_design/pcb/Voicecard-SMRMU-v02.sch
index 07938db..25bbbeb 100644
--- a/hardware_design/pcb/Voicecard-SMRMU-v02.sch
+++ b/hardware_design/pcb/Voicecard-SMRMU-v02.sch
@@ -7823,7 +7823,7 @@ Source: 008-0260-0_E.pdf</description>
 </symbol>
 </symbols>
 <devicesets>
-<deviceset name="4052" prefix="IC">
+<deviceset name="CD4052" prefix="IC">
 <description>8-channel &lt;b&gt;ANALOG MULTIPLEXER&lt;/b&gt;</description>
 <gates>
 <gate name="P" symbol="PWR+VEE" x="-5.08" y="0" addlevel="request"/>
@@ -7858,7 +7858,7 @@ Source: 008-0260-0_E.pdf</description>
 </technology>
 </technologies>
 </device>
-<device name="D" package="SOIC16N">
+<device name="B" package="SOIC16N">
 <connects>
 <connect gate="G$1" pin="A" pad="10"/>
 <connect gate="G$1" pin="B" pad="9"/>
@@ -8415,7 +8415,7 @@ Source: http://www.osram.convergy.de/ ... Lb_q993.pdf</description>
 <part name="P+7" library="supply1" library_urn="urn:adsk.eagle:library:371" deviceset="+5V" device=""/>
 <part name="C6" library="jhbruhn-cdr" deviceset="C-EU" device="C0603" package3d_urn="urn:adsk.eagle:package:23616/2" value="100n"/>
 <part name="C18" library="jhbruhn-cdr" deviceset="C-EU" device="C0603" package3d_urn="urn:adsk.eagle:package:23616/2" value="100n"/>
-<part name="IC7" library="jhbruhn-ic" deviceset="4052" device="D"/>
+<part name="IC7" library="jhbruhn-ic" deviceset="CD4052" device="B"/>
 <part name="R31" library="jhbruhn-cdr" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/42" value="22k"/>
 <part name="C22" library="jhbruhn-cdr" deviceset="C-EU" device="C0603" package3d_urn="urn:adsk.eagle:package:23616/2" value="10p"/>
 <part name="R60" library="jhbruhn-cdr" deviceset="R-EU_" device="R0603" package3d_urn="urn:adsk.eagle:package:23555/42" value="68k"/>
diff --git a/hardware_design/pcb/assembly/Voicecard-SMRMU-v02_top_bom.csv b/hardware_design/pcb/assembly/Voicecard-SMRMU-v02_top_bom.csv
index 4e01289..e54c7bb 100644
--- a/hardware_design/pcb/assembly/Voicecard-SMRMU-v02_top_bom.csv
+++ b/hardware_design/pcb/assembly/Voicecard-SMRMU-v02_top_bom.csv
@@ -31,8 +31,8 @@ Comment,Designator,Footprint,LCSC Part #
 220n,C17 C24,C0603,
 390k,R19,R0603,
 470,R51 R54,R0603,
-4052D,IC7,SOIC16N,
 ATMEGA328P-AU,U1,TQFP-32,
+CD4052B,IC7,SOIC16N,
 LED GREEN,LED1,CHIP-LED0603,
 LED RED,LED2,CHIP-LED0603,
 LM13700M,IC3 IC4 IC6,SO16,