diff --git a/README.md b/README.md
index a289e5e..aaa652e 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ View generated gerbers
 
 # Features
 
-FPGA: Lattice ECP5 LFE5U-85F-6BG381C (85K LUT)
+FPGA: Lattice ECP5 [LFE5U-85F-6BG381C](http://www.latticesemi.com/~/media/LatticeSemi/Documents/ApplicationNotes/EH/TN1261.pdf?document_id=50463) (85K LUT)
 
 USB: FTDI FT231XS (500kbit JTAG and 3Mbit USB-serial)