diff --git a/compiler/characterizer/delay.py b/compiler/characterizer/delay.py
index 7810532d..690c9645 100644
--- a/compiler/characterizer/delay.py
+++ b/compiler/characterizer/delay.py
@@ -389,11 +389,12 @@ class delay():
 	data = {"min_period1": min_period1,  # period in ns
                 "delay1": delay1, # delay in s
                 "min_period0": min_period0,
-                "delay0": delay0,
-		"Read_Power": read_power,
-		"Write_Power": write_power
+                "delay0": delay0
                 }
-        return data
+        power = {"Read_Power": read_power,
+		 "Write_Power": write_power
+		 }
+	return data, power
 
 
     def obtain_cycle_times(self, slow_period, fast_period):
diff --git a/compiler/characterizer/lib.py b/compiler/characterizer/lib.py
index 7fb8f560..ec7ebc3e 100644
--- a/compiler/characterizer/lib.py
+++ b/compiler/characterizer/lib.py
@@ -61,12 +61,12 @@ class lib:
         probe_address = "1" * self.addr_size
         probe_data = self.word_size - 1
 
-        data = self.d.analyze(probe_address, probe_data)
-        for i in data.keys()[0:3]:
+        data , power = self.d.analyze(probe_address, probe_data)
+        for i in data.keys():
             data[i] = ch.round_time(data[i])
 
       
-        self.write_data_bus(data, times)
+        self.write_data_bus(data, power, times)
         self.write_addr_bus(times)
         self.write_control_pins(times)
         self.write_clk(data)
@@ -199,7 +199,7 @@ class lib:
 
 
 
-    def write_data_bus(self, data, times):
+    def write_data_bus(self, data, power, times):
         """ Adds data bus timing results."""
         self.lib.write("    bus(DATA){\n")
         self.lib.write("        bus_type  : DATA; \n")
@@ -217,10 +217,10 @@ class lib:
 	self.lib.write("        internal_power(){\n")
 	self.lib.write("            when : \"OEb & !clk\"; \n")
 	self.lib.write("            rise_power(INPUT_BY_TRANS_FOR_SIGNAL){\n")
-	self.lib.write("                values(\"{0}\");\n".format(data["Write_Power"]* 1e3))
+	self.lib.write("                values(\"{0}\");\n".format(power["Write_Power"]* 1e3))
 	self.lib.write("            }\n")
 	self.lib.write("            fall_power(INPUT_BY_TRANS_FOR_SIGNAL){\n")
-	self.lib.write("                values(\"{0}\");\n".format(data["Write_Power"]* 1e3))
+	self.lib.write("                values(\"{0}\");\n".format(power["Write_Power"]* 1e3))
 	self.lib.write("            }\n")
         self.lib.write("        }\n")
 	self.write_timing(times)
@@ -231,10 +231,10 @@ class lib:
 	self.lib.write("        internal_power(){\n")
 	self.lib.write("            when : \"!OEb & !clk\"; \n")
 	self.lib.write("            rise_power(INPUT_BY_TRANS_FOR_SIGNAL){\n")
-	self.lib.write("                values(\"{0}\");\n".format(data["Read_Power"]* 1e3))
+	self.lib.write("                values(\"{0}\");\n".format(power["Read_Power"]* 1e3))
 	self.lib.write("            }\n")
 	self.lib.write("            fall_power(INPUT_BY_TRANS_FOR_SIGNAL){\n")
-	self.lib.write("                values(\"{0}\");\n".format(data["Read_Power"]* 1e3))
+	self.lib.write("                values(\"{0}\");\n".format(power["Read_Power"]* 1e3))
 	self.lib.write("            }\n")
         self.lib.write("        }\n")
 	self.lib.write("        timing(){ \n")
@@ -293,7 +293,7 @@ class lib:
         self.lib.write("        clock             : true;\n")
         self.lib.write("        direction  : input; \n")
         self.lib.write("        capacitance : {0};  \n".format(tech.spice["FF_in_cap"]))
-	min_pulse_width = (ch.round_time(data["min_period1"]) + ch.round_time(data["min_period0"]))/2
+	min_pulse_width = (ch.round_time(data["min_period1"]) + ch.round_time(data["min_period0"]))/2.0
 	min_period = ch.round_time(data["min_period1"]) + ch.round_time(data["min_period0"])
         self.lib.write("        timing(){ \n")
         self.lib.write("            timing_type :\"min_pulse_width\"; \n")