diff --git a/dts/arm/st/f1/stm32f103Xd.dtsi b/dts/arm/st/f1/stm32f103Xd.dtsi
new file mode 100644
index 0000000000..2c3935473e
--- /dev/null
+++ b/dts/arm/st/f1/stm32f103Xd.dtsi
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2021 Teltonika
+ *
+ * SoC device tree include for STM32F103xD SoCs
+ * where 'x' is replaced for specific SoCs like {R,V,Z}
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <mem.h>
+#include <st/f1/stm32f103Xc.dtsi>
+
+/ {
+	sram0: memory@20000000 {
+		reg = <0x20000000 DT_SIZE_K(64)>;
+	};
+
+	soc {
+		flash-controller@40022000 {
+			flash0: flash@8000000 {
+				reg = <0x08000000 DT_SIZE_K(384)>;
+				erase-block-size = <DT_SIZE_K(2)>;
+			};
+		};
+	};
+};
diff --git a/dts/arm/st/f1/stm32f103Xe.dtsi b/dts/arm/st/f1/stm32f103Xe.dtsi
index 6810dc7ae7..18c0dcc83f 100644
--- a/dts/arm/st/f1/stm32f103Xe.dtsi
+++ b/dts/arm/st/f1/stm32f103Xe.dtsi
@@ -8,13 +8,9 @@
  */
 
 #include <mem.h>
-#include <st/f1/stm32f103Xc.dtsi>
+#include <st/f1/stm32f103Xd.dtsi>
 
 / {
-	sram0: memory@20000000 {
-		reg = <0x20000000 DT_SIZE_K(64)>;
-	};
-
 	soc {
 		flash-controller@40022000 {
 			flash0: flash@8000000 {