diff --git a/dataflow_neuro/cell_lib_std.act b/dataflow_neuro/cell_lib_std.act
index 10ed5fd..e4be530 100644
--- a/dataflow_neuro/cell_lib_std.act
+++ b/dataflow_neuro/cell_lib_std.act
@@ -373,6 +373,16 @@ namespace tmpl {
       }
       sizing { _en{-2}; y{-2,2} }
     }
+
+    export defcell DFQ_R_X1 (bool! Q,Q_B; bool? d,clk,vdd,vss,reset_B)
+    {
+      prs {
+        reset_B -> Q-
+        ~Q => Q_B
+        reset_B & ~d & clk -> Q+
+        reset_B & d & clk -> Q-
+      }
+    }
   }
 }