diff --git a/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PeripheralNames.h b/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PeripheralNames.h
index 65d2b635b8..2a2ecc6ead 100644
--- a/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PeripheralNames.h
+++ b/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PeripheralNames.h
@@ -32,6 +32,7 @@ typedef enum {
     UART_2 = 2,
     UART_3 = 3,
     UART_4 = 4,
+    UART_5 = 5,
 } UARTName;
 
 #define STDIO_UART_TX     USBTX
diff --git a/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PeripheralPins.c b/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PeripheralPins.c
index c2bb8f627e..cba1a605f3 100644
--- a/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PeripheralPins.c
+++ b/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PeripheralPins.c
@@ -94,6 +94,8 @@ const PinMap PinMap_UART_TX[] = {
     {PTE24, UART_4, 3},
     {PTE4 , UART_3, 3},
     {PTE0,  UART_1, 3},
+    {PTE0,  UART_1, 3},
+    {PTD9,  UART_5, 3},
     {NC  ,  NC    , 0}
 };
 
@@ -109,6 +111,7 @@ const PinMap PinMap_UART_RX[] = {
     {PTC14, UART_4, 3},
     {PTD2 , UART_2, 3},
     {PTD6 , UART_0, 3},
+    {PTD8,  UART_5, 3},
     {NC  ,  NC    , 0}
 };
 
@@ -126,6 +129,7 @@ const PinMap PinMap_UART_CTS[] = {
     {PTC19, UART_3, 3},
     {PTD1 , UART_2, 3},
     {PTD5 , UART_0, 3},
+    {PTD11, UART_5, 3},
     {NC   , NC    , 0}
 };
 
@@ -143,6 +147,7 @@ const PinMap PinMap_UART_RTS[] = {
     {PTD4 , UART_0, 3},
     {PTA3 , UART_0, 2},
     {PTB2 , UART_0, 3},
+    {PTD10, UART_5, 3},
     {NC   , NC    , 0}
 };
 
diff --git a/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PinNames.h b/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PinNames.h
index af4b262b3e..e68cd20bb8 100644
--- a/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PinNames.h
+++ b/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_SDT64B/PinNames.h
@@ -228,20 +228,20 @@ typedef enum {
     USBRX = PTC14,
 
     // UART pins
-    UART0_RX  = PTD8,
-    UART0_TX  = PTD9,
-    UART0_CTS = PTD11,
-    UART0_RTS = PTD10,
+    UART0_RX  = PTC16,
+    UART0_TX  = PTC17,
+    UART0_CTS = PTC19,
+    UART0_RTS = PTC18,
 
     UART1_RX  = USBRX,
     UART1_TX  = USBTX,
     UART1_CTS = PTC13,
     UART1_RTS = PTC12,
 
-    UART2_RX  = PTC16,
-    UART2_TX  = PTC17,
-    UART2_CTS = PTC19,
-    UART2_RTS = PTC18,
+    UART2_RX  = PTD8,
+    UART2_TX  = PTD9,
+    UART2_CTS = PTD11,
+    UART2_RTS = PTD10,
 
     // I2C pins
     I2C0_SCL = PTC10,