diff --git a/library/texas.dcm b/library/texas.dcm
index 4f28d050..de9deb60 100644
--- a/library/texas.dcm
+++ b/library/texas.dcm
@@ -120,6 +120,24 @@ K ARM Stellaris Cortex M4 MCU NRND
 F http://www.ti.com/lit/ds/symlink/tm4c1230h6pm.pdf
 $ENDCMP
 #
+$CMP TCA9555PWR
+D 16-bit I/O expander, I2C and SMBus interface, interrupts, TSSOP-24 package
+K ti parallel port
+F http://www.ti.com/lit/ds/symlink/tca9555.pdf
+$ENDCMP
+#
+$CMP TCA9555RGER
+D 16-bit I/O expander, I2C and SMBus interface, interrupts, QFN-24 package
+K ti parallel port
+F http://www.ti.com/lit/ds/symlink/tca9555.pdf
+$ENDCMP
+#
+$CMP TCA9555RTWR
+D 16-bit I/O expander, I2C and SMBus interface, interrupts, QFN-24 package
+K ti parallel port
+F http://www.ti.com/lit/ds/symlink/tca9555.pdf
+$ENDCMP
+#
 $CMP TLC555
 D CMOS Timer
 K Timer NE555
diff --git a/library/texas.lib b/library/texas.lib
index f1d16d7e..33c81cbd 100644
--- a/library/texas.lib
+++ b/library/texas.lib
@@ -360,6 +360,86 @@ X PD7/CCP1 100 -1600 1300 150 R 50 50 1 1 B
 ENDDRAW
 ENDDEF
 #
+# TCA9555PWR
+#
+DEF TCA9555PWR U 0 40 Y Y 1 F N
+F0 "U" -450 950 50 H V C CNN
+F1 "TCA9555PWR" 0 0 50 H V C CNN
+F2 "Housings_SSOP:TSSOP-24_4.4x7.8mm_Pitch0.65mm" 1050 -1000 50 H I C CNN
+F3 "" -500 900 50 H I C CNN
+$FPLIST
+ TSSOP-24*
+$ENDFPLIST
+DRAW
+S -500 900 500 -900 0 1 10 f
+X ~INT 1 -700 600 200 R 50 50 1 1 O
+X A1 2 -700 -700 200 R 50 50 1 1 I
+X A2 3 -700 -600 200 R 50 50 1 1 I
+X P00 4 700 800 200 L 50 50 1 1 B
+X P01 5 700 700 200 L 50 50 1 1 B
+X P02 6 700 600 200 L 50 50 1 1 B
+X P03 7 700 500 200 L 50 50 1 1 B
+X P04 8 700 400 200 L 50 50 1 1 B
+X P05 9 700 300 200 L 50 50 1 1 B
+X P06 10 700 200 200 L 50 50 1 1 B
+X P17 20 700 -800 200 L 50 50 1 1 B
+X P07 11 700 100 200 L 50 50 1 1 B
+X A0 21 -700 -800 200 R 50 50 1 1 I
+X GND 12 0 -1100 200 U 50 50 1 1 W
+X SCL 22 -700 700 200 R 50 50 1 1 I
+X P10 13 700 -100 200 L 50 50 1 1 B
+X SDA 23 -700 800 200 R 50 50 1 1 B
+X P11 14 700 -200 200 L 50 50 1 1 B
+X VCC 24 0 1100 200 D 50 50 1 1 W
+X P12 15 700 -300 200 L 50 50 1 1 B
+X P13 16 700 -400 200 L 50 50 1 1 B
+X P14 17 700 -500 200 L 50 50 1 1 B
+X P15 18 700 -600 200 L 50 50 1 1 B
+X P16 19 700 -700 200 L 50 50 1 1 B
+ENDDRAW
+ENDDEF
+#
+# TCA9555RGER
+#
+DEF TCA9555RGER U 0 40 Y Y 1 F N
+F0 "U" -450 950 50 H V C CNN
+F1 "TCA9555RGER" 0 0 50 H V C CNN
+F2 "Housings_DFN_QFN:QFN-24-1EP_4x4mm_Pitch0.5mm" 1200 -1000 50 H I C CNN
+F3 "" -500 900 50 H I C CNN
+ALIAS TCA9555RTWR
+$FPLIST
+ QFN-24-1EP_4x4mm_Pitch0.5mm
+$ENDFPLIST
+DRAW
+S -500 900 500 -900 0 1 10 f
+X P00 1 700 800 200 L 50 50 1 1 B
+X P01 2 700 700 200 L 50 50 1 1 B
+X P02 3 700 600 200 L 50 50 1 1 B
+X P03 4 700 500 200 L 50 50 1 1 B
+X P04 5 700 400 200 L 50 50 1 1 B
+X P05 6 700 300 200 L 50 50 1 1 B
+X P06 7 700 200 200 L 50 50 1 1 B
+X P07 8 700 100 200 L 50 50 1 1 B
+X GND 9 0 -1100 200 U 50 50 1 1 W
+X P10 10 700 -100 200 L 50 50 1 1 B
+X SDA 20 -700 800 200 R 50 50 1 1 B
+X P11 11 700 -200 200 L 50 50 1 1 B
+X VCC 21 0 1100 200 D 50 50 1 1 W
+X P12 12 700 -300 200 L 50 50 1 1 B
+X ~INT 22 -700 600 200 R 50 50 1 1 O
+X P13 13 700 -400 200 L 50 50 1 1 B
+X A1 23 -700 -700 200 R 50 50 1 1 I
+X P14 14 700 -500 200 L 50 50 1 1 B
+X A2 24 -700 -600 200 R 50 50 1 1 I
+X P15 15 700 -600 200 L 50 50 1 1 B
+X EPAD 25 100 -1100 200 U 50 50 1 1 I
+X P16 16 700 -700 200 L 50 50 1 1 B
+X P17 17 700 -800 200 L 50 50 1 1 B
+X A0 18 -700 -800 200 R 50 50 1 1 I
+X SCL 19 -700 700 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
 # TLC555
 #
 DEF TLC555 U 0 40 Y Y 1 F N