diff --git a/data/extra/family/STM32L4.yaml b/data/extra/family/STM32L4.yaml
new file mode 100644
index 0000000..a72291a
--- /dev/null
+++ b/data/extra/family/STM32L4.yaml
@@ -0,0 +1,4 @@
+peripherals:
+    VREFINTCAL: 
+        address: 0x1FFF75AA
+        block: vrefintcal_v1/VREFINTCAL