diff --git a/dts/arm/st/l4/stm32l471Xg.dtsi b/dts/arm/st/l4/stm32l471Xg.dtsi
index 383e93e7e73..5d38f21c04c 100644
--- a/dts/arm/st/l4/stm32l471Xg.dtsi
+++ b/dts/arm/st/l4/stm32l471Xg.dtsi
@@ -14,6 +14,7 @@
 	sram1: memory@10000000 {
 		reg = <0x10000000 DT_SIZE_K(32)>;
 	};
+
 	soc {
 		flash-controller@40022000 {
 			flash0: flash@8000000 {
diff --git a/dts/arm/st/l4/stm32l475Xg.dtsi b/dts/arm/st/l4/stm32l475Xg.dtsi
index 98af4e36119..fda820474d4 100644
--- a/dts/arm/st/l4/stm32l475Xg.dtsi
+++ b/dts/arm/st/l4/stm32l475Xg.dtsi
@@ -10,6 +10,9 @@
 	sram0: memory@20000000 {
 		reg = <0x20000000 DT_SIZE_K(96)>;
 	};
+	sram1: memory@10000000 {
+		reg = <0x10000000 DT_SIZE_K(32)>;
+	};
 
 	soc {
 		flash-controller@40022000 {
diff --git a/dts/arm/st/l4/stm32l476Xg.dtsi b/dts/arm/st/l4/stm32l476Xg.dtsi
index af29a4636fd..1d29a88990e 100644
--- a/dts/arm/st/l4/stm32l476Xg.dtsi
+++ b/dts/arm/st/l4/stm32l476Xg.dtsi
@@ -10,6 +10,9 @@
 	sram0: memory@20000000 {
 		reg = <0x20000000 DT_SIZE_K(96)>;
 	};
+	sram1: memory@10000000 {
+		reg = <0x10000000 DT_SIZE_K(32)>;
+	};
 
 	soc {
 		flash-controller@40022000 {
diff --git a/dts/arm/st/l4/stm32l486Xg.dtsi b/dts/arm/st/l4/stm32l486Xg.dtsi
index 073ea99bb54..d8b030bbfa8 100644
--- a/dts/arm/st/l4/stm32l486Xg.dtsi
+++ b/dts/arm/st/l4/stm32l486Xg.dtsi
@@ -9,7 +9,10 @@
 
 / {
 	sram0: memory@20000000 {
-		reg = <0x20000000 DT_SIZE_K(128)>;
+		reg = <0x20000000 DT_SIZE_K(96)>;
+	};
+	sram1: memory@10000000 {
+		reg = <0x10000000 DT_SIZE_K(32)>;
 	};
 
 	soc {
diff --git a/dts/arm/st/l4/stm32l496Xe.dtsi b/dts/arm/st/l4/stm32l496Xe.dtsi
index 8c3c3fc3258..841dd81b7b0 100644
--- a/dts/arm/st/l4/stm32l496Xe.dtsi
+++ b/dts/arm/st/l4/stm32l496Xe.dtsi
@@ -10,6 +10,9 @@
 	sram0: memory@20000000 {
 		reg = <0x20000000 DT_SIZE_K(256)>;
 	};
+	sram1: memory@10000000 {
+		reg = <0x10000000 DT_SIZE_K(64)>;
+	};
 
 	soc {
 		flash-controller@40022000 {
diff --git a/dts/arm/st/l4/stm32l496Xg.dtsi b/dts/arm/st/l4/stm32l496Xg.dtsi
index 76c9d482bda..348438829ea 100644
--- a/dts/arm/st/l4/stm32l496Xg.dtsi
+++ b/dts/arm/st/l4/stm32l496Xg.dtsi
@@ -8,7 +8,10 @@
 
 / {
 	sram0: memory@20000000 {
-		reg = <0x20000000 DT_SIZE_K(320)>;
+		reg = <0x20000000 DT_SIZE_K(256)>;
+	};
+	sram1: memory@10000000 {
+		reg = <0x10000000 DT_SIZE_K(64)>;
 	};
 
 	soc {
diff --git a/dts/arm/st/l4/stm32l4a6Xg.dtsi b/dts/arm/st/l4/stm32l4a6Xg.dtsi
index b8deb86dce0..50f4764e2e7 100644
--- a/dts/arm/st/l4/stm32l4a6Xg.dtsi
+++ b/dts/arm/st/l4/stm32l4a6Xg.dtsi
@@ -9,7 +9,10 @@
 
 / {
 	sram0: memory@20000000 {
-		reg = <0x20000000 DT_SIZE_K(320)>;
+		reg = <0x20000000 DT_SIZE_K(256)>;
+	};
+	sram1: memory@10000000 {
+		reg = <0x10000000 DT_SIZE_K(64)>;
 	};
 
 	soc {