diff --git a/scripts/dts/python-devicetree/src/devicetree/dtlib.py b/scripts/dts/python-devicetree/src/devicetree/dtlib.py
index 0e07cf9d52c..e987ad5d9e9 100644
--- a/scripts/dts/python-devicetree/src/devicetree/dtlib.py
+++ b/scripts/dts/python-devicetree/src/devicetree/dtlib.py
@@ -641,11 +641,16 @@ class Property:
                 elif marker_type is _MarkerType.PHANDLE:
                     s += " &" + ref
                     pos += 4
+                    if pos != len(self.value) and len(s) - array_start > 80:  # noqa: F821
+                        s += array_newline                                    # noqa: F821
+                        array_start = len(s)
                     # Subtle: There might be more data between the phandle and
                     # the next marker, so we can't 'continue' here
                 else:  # marker_type is _MarkerType.UINT*
                     elm_size = _TYPE_TO_N_BYTES[marker_type]
                     s += _N_BYTES_TO_START_STR[elm_size]
+                    array_start = len(s)
+                    array_newline = "\n" + " " * array_start
 
                 while pos != end:
                     num = int.from_bytes(self.value[pos:pos + elm_size],
@@ -656,6 +661,9 @@ class Property:
                         s += f" {hex(num)}"
 
                     pos += elm_size
+                    if pos != len(self.value) and len(s) - array_start > 80:
+                        s += array_newline
+                        array_start = len(s)
 
                 if (pos != 0
                     and (not next_marker
diff --git a/scripts/dts/python-devicetree/tests/test_dtlib.py b/scripts/dts/python-devicetree/tests/test_dtlib.py
index 26f7b458e7e..6d3e02b7cf7 100644
--- a/scripts/dts/python-devicetree/tests/test_dtlib.py
+++ b/scripts/dts/python-devicetree/tests/test_dtlib.py
@@ -163,6 +163,8 @@ def test_cell_parsing():
 	j = /bits/ 32 < 0x10 0x20 (-1) >;
 	k = /bits/ 64 < 0x10 0x20 (-1) >;
 	l = < 'a' 'b' 'c' >;
+	m = [ 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13 14 15 16 17 18 19 1a 1b ];
+	n = < 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >;
 };
 """,
 """
@@ -181,6 +183,10 @@ def test_cell_parsing():
 	j = < 0x10 0x20 0xffffffff >;
 	k = /bits/ 64 < 0x10 0x20 0xffffffffffffffff >;
 	l = < 0x61 0x62 0x63 >;
+	m = [ 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A
+	      1B ];
+	n = < 0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xa 0xb 0xc 0xd 0xe 0xf 0x10 0x11 0x12 0x13
+	      0x14 >;
 };
 """)