diff --git a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1040_evk.overlay b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1040_evk.overlay
index ba70b01c1d4..a1c329a6926 100644
--- a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1040_evk.overlay
+++ b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1040_evk.overlay
@@ -17,7 +17,7 @@
 	eeprom0: eeprom@54 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x54>;
-		size = <1024>;
+		size = <256>;
 	};
 };
 
@@ -26,6 +26,6 @@
 	eeprom1: eeprom@56 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x56>;
-		size = <1024>;
+		size = <256>;
 	};
 };
diff --git a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1060_evk.overlay b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1060_evk.overlay
index 143c437549f..d47c67068ba 100644
--- a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1060_evk.overlay
+++ b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1060_evk.overlay
@@ -25,7 +25,7 @@
 	eeprom0: eeprom@54 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x54>;
-		size = <1024>;
+		size = <256>;
 	};
 };
 
@@ -36,6 +36,6 @@
 	eeprom1: eeprom@56 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x56>;
-		size = <1024>;
+		size = <256>;
 	};
 };
diff --git a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evk_mimxrt1176_cm7.overlay b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evk_mimxrt1176_cm7.overlay
index 4e17adc5dce..967f9a7de38 100644
--- a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evk_mimxrt1176_cm7.overlay
+++ b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evk_mimxrt1176_cm7.overlay
@@ -11,7 +11,7 @@
 	eeprom0: eeprom@54 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x54>;
-		size = <1024>;
+		size = <256>;
 	};
 };
 
@@ -20,6 +20,6 @@
 	eeprom1: eeprom@56 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x56>;
-		size = <1024>;
+		size = <256>;
 	};
 };
diff --git a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evkb_mimxrt1176_cm4.overlay b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evkb_mimxrt1176_cm4.overlay
index 4e17adc5dce..967f9a7de38 100644
--- a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evkb_mimxrt1176_cm4.overlay
+++ b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evkb_mimxrt1176_cm4.overlay
@@ -11,7 +11,7 @@
 	eeprom0: eeprom@54 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x54>;
-		size = <1024>;
+		size = <256>;
 	};
 };
 
@@ -20,6 +20,6 @@
 	eeprom1: eeprom@56 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x56>;
-		size = <1024>;
+		size = <256>;
 	};
 };
diff --git a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evkb_mimxrt1176_cm7.overlay b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evkb_mimxrt1176_cm7.overlay
index 4e17adc5dce..967f9a7de38 100644
--- a/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evkb_mimxrt1176_cm7.overlay
+++ b/tests/drivers/i2c/i2c_target_api/boards/mimxrt1170_evkb_mimxrt1176_cm7.overlay
@@ -11,7 +11,7 @@
 	eeprom0: eeprom@54 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x54>;
-		size = <1024>;
+		size = <256>;
 	};
 };
 
@@ -20,6 +20,6 @@
 	eeprom1: eeprom@56 {
 		compatible = "zephyr,i2c-target-eeprom";
 		reg = <0x56>;
-		size = <1024>;
+		size = <256>;
 	};
 };