diff --git a/library/MCU_ST_STM32.dcm b/library/MCU_ST_STM32.dcm
index 41912aaa..1fe91d65 100644
--- a/library/MCU_ST_STM32.dcm
+++ b/library/MCU_ST_STM32.dcm
@@ -1951,49 +1951,54 @@ F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datas
 $ENDCMP
 #
 $CMP STM32F334C4Tx
-D Core: ARM Cortex-M4, Package: LQFP48, Flash: 16 kB, RAM: 8 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 37
+D Core: ARM Cortex-M4, Package: LQFP48, Flash: 16 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 37
 K ARM Cortex-M4 STM32F3 STM32F334
 F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
 $ENDCMP
 #
 $CMP STM32F334C6Tx
-D Core: ARM Cortex-M4, Package: LQFP48, Flash: 16 kB, RAM: 8 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 37
+D Core: ARM Cortex-M4, Package: LQFP48, Flash: 32 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 37
 K ARM Cortex-M4 STM32F3 STM32F334
 F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
 $ENDCMP
 #
 $CMP STM32F334C8Tx
-D Core: ARM Cortex-M4, Package: LQFP48, Flash: 16 kB, RAM: 8 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 37
+D Core: ARM Cortex-M4, Package: LQFP48, Flash: 64 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 37
 K ARM Cortex-M4 STM32F3 STM32F334
 F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
 $ENDCMP
 #
 $CMP STM32F334K4Tx
-D Core: ARM Cortex-M4, Package: LQFP32, Flash: 16 kB, RAM: 8 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 25
+D Core: ARM Cortex-M4, Package: LQFP32, Flash: 16 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 25
 K ARM Cortex-M4 STM32F3 STM32F334
 F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
 $ENDCMP
 #
 $CMP STM32F334K6Tx
-D Core: ARM Cortex-M4, Package: LQFP32, Flash: 16 kB, RAM: 8 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 25
+D Core: ARM Cortex-M4, Package: LQFP32, Flash: 32 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 25
 K ARM Cortex-M4 STM32F3 STM32F334
 F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
 $ENDCMP
 #
 $CMP STM32F334K8Tx
-D Core: ARM Cortex-M4, Package: LQFP32, Flash: 16 kB, RAM: 8 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 25
+D Core: ARM Cortex-M4, Package: LQFP32, Flash: 64 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 25
 K ARM Cortex-M4 STM32F3 STM32F334
 F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
 $ENDCMP
 #
+$CMP STM32F334R4Tx
+D Core: ARM Cortex-M4, Package: LQFP64, Flash: 16 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 51
+K ARM Cortex-M4 STM32F3 STM32F334
+F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
+$ENDCMP
 $CMP STM32F334R6Tx
-D Core: ARM Cortex-M4, Package: LQFP64, Flash: 32 kB, RAM: 10 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 51
+D Core: ARM Cortex-M4, Package: LQFP64, Flash: 32 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 51
 K ARM Cortex-M4 STM32F3 STM32F334
 F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
 $ENDCMP
 #
 $CMP STM32F334R8Tx
-D Core: ARM Cortex-M4, Package: LQFP64, Flash: 32 kB, RAM: 10 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 51
+D Core: ARM Cortex-M4, Package: LQFP64, Flash: 64 kB, RAM: 12 kB, Frequency: 72 MHz, Voltage: 2..3.6V, I/O pins: 51
 K ARM Cortex-M4 STM32F3 STM32F334
 F http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00097745.pdf
 $ENDCMP
diff --git a/library/MCU_ST_STM32.lib b/library/MCU_ST_STM32.lib
index 9cc9425b..9b9c9447 100644
--- a/library/MCU_ST_STM32.lib
+++ b/library/MCU_ST_STM32.lib
@@ -15377,14 +15377,14 @@ S -4100 -1000 4100 1100 0 1 10 f
 ENDDRAW
 ENDDEF
 #
-# STM32F334R6TX
+# STM32F334R4TX
 #
-DEF STM32F334R6Tx U 0 40 Y Y 1 L N
+DEF STM32F334R4Tx U 0 40 Y Y 1 L N
 F0 "U" -3600 1925 50 H V L B
-F1 "STM32F334R6Tx" 3600 1925 50 H V R B
+F1 "STM32F334R4Tx" 3600 1925 50 H V R B
 F2 "LQFP64" 3600 1875 50 H I R T
 F3 "~" 0 0 50 H I C CNN
-ALIAS STM32F334R8Tx
+ALIAS STM32F334R6Tx STM32F334R8Tx
 DRAW
 X ADC1_IN1/RTC_TAMP2/SYS_WKUP1/TIM2_CH1/TIM2_ETR/TSC_G1_IO1/USART2_CTS/PA0 14 3700 1600 100 L 50 50 1 1 B
 X ADC1_IN2/RTC_REFIN/TIM15_CH1N/TIM2_CH2/TSC_G1_IO2/USART2_DE/USART2_RTS/PA1 15 3700 1500 100 L 50 50 1 1 B