diff --git a/ld/devices.data b/ld/devices.data
index fab658cf..f1691965 100644
--- a/ld/devices.data
+++ b/ld/devices.data
@@ -120,6 +120,8 @@ stm32f2[01][57]?g* stm32f2 ROM=1024K RAM=128K
 stm32f302?b* stm32f3ccm ROM=128K RAM=24K CCM=8K
 stm32f302?c* stm32f3ccm ROM=256K RAM=32K CCM=8K
 stm32f302?8* stm32f3 ROM=64K RAM=16K
+stm32f303?6* stm32f3ccm ROM=32K RAM=12K CCM=4K
+stm32f303?8* stm32f3ccm ROM=64K RAM=12K CCM=4K
 stm32f303?b* stm32f3ccm ROM=128K RAM=32K CCM=8K
 stm32f3[01]3?c* stm32f3ccm ROM=256K RAM=40K CCM=8K
 stm32f373?8* stm32f3 ROM=64K RAM=16K