diff --git a/library/maxim.dcm b/library/maxim.dcm
index 8ebd2a0c..a3174eab 100644
--- a/library/maxim.dcm
+++ b/library/maxim.dcm
@@ -126,6 +126,12 @@ K RTC TCXO Realtime Time Clock Crystal Oscillator I2C
 F http://datasheets.maximintegrated.com/en/ds/DS3231.pdf
 $ENDCMP
 #
+$CMP DS3231MZ
+D ±5ppm, I2C Real-Time Clock SOIC-8
+K RTC TCXO Realtime Time Clock MEMS I2C
+F http://datasheets.maximintegrated.com/en/ds/DS3231M.pdf
+$ENDCMP
+#
 $CMP DS3232M
 D ±5ppm, I2C Real-Time Clock with SRAM SOIC-8
 K RTC TCXO Realtime Time Clock MEMS SRAM I2C
diff --git a/library/maxim.lib b/library/maxim.lib
index b89e42a6..92aa5522 100644
--- a/library/maxim.lib
+++ b/library/maxim.lib
@@ -440,6 +440,29 @@ X SCL 16 -500 100 150 R 50 50 1 1 I
 ENDDRAW
 ENDDEF
 #
+# DS3231MZ
+#
+DEF DS3231MZ U 0 30 Y Y 1 F N
+F0 "U" -100 550 50 H V R CNN
+F1 "DS3231MZ" -100 450 50 H V R CNN
+F2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" 0 -600 50 H I C CNN
+F3 "" 0 -700 50 H I C CNN
+$FPLIST
+ SOIC*3.9x4.9mm*Pitch1.27mm*
+$ENDFPLIST
+DRAW
+S -400 400 400 -400 0 1 10 f
+X 32KHZ 1 500 0 100 L 50 50 1 1 C
+X VCC 2 0 500 100 D 50 50 1 1 W
+X ~INT~/SQW 3 500 100 100 L 50 50 1 1 C
+X ~RST 4 -500 -200 100 R 50 50 1 1 B
+X GND 5 0 -500 100 U 50 50 1 1 W
+X VBAT 6 500 -200 100 L 50 50 1 1 W
+X SDA 7 -500 0 100 R 50 50 1 1 B
+X SCL 8 -500 100 100 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
 # DS3232M
 #
 DEF DS3232M U 0 30 Y Y 1 F N