diff --git a/data/extra/family/STM32F3.yaml b/data/extra/family/STM32F3.yaml
new file mode 100644
index 0000000..84da393
--- /dev/null
+++ b/data/extra/family/STM32F3.yaml
@@ -0,0 +1,8 @@
+---
+peripherals:
+  - name: VREFINTCAL
+    address: 0x1FFFF7BA
+    registers: 
+      kind: vrefintcal
+      version: v1
+      block: VREFINTCAL