Interface - I/O Expanders – Mouser Liechtenstein

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TCA9554/A Remote 8-bit I2C & SMBus I/O Expander

Texas Instruments TCA9554/A Remote 8-bit I²C & SMBus I/O Expander provides 8 bits of general-purpose parallel input/output (I/O) expansion for the two-line bidirectional I²C bus (or SMBus) protocol. Each device can operate with a power supply voltage ranging from 1.65V to 5.5V. It supports both 100kHz (Standard-mode) and 400kHz (Fast-mode) clock frequencies. These I/O expanders from Texas Instruments provide a simple solution when additional I/Os are needed for switches, sensors, push buttons, LEDs, fans, and other similar devices. The features of the TCA9554 include an interrupt that is generated on the INT pin whenever an input port changes state. The A0, A1, and A2 hardware selectable address pins allow up to eight TCA9554/A devices on the same I²C bus.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Package/Case	Interface Type	Number of I/Os	Interrupt Output	Supply Voltage - Min	Supply Voltage - Max	Maximum Clock Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Packaging	ESD Protection
Interface - I/O Expanders 8-Bit I2C and SMBus I/O Expander A 595-T A 595-TCA9554ADWT TCA9554ADWR Texas Instruments 1: CHF 1.22 1’666In Stock	Mfr. Part No. TCA9554ADWR Mouser Part No 595-TCA9554ADWR	Texas Instruments	Interface - I/O Expanders 8-Bit I2C and SMBus I/O Expander A 595-T A 595-TCA9554ADWT Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	1’666In Stock	Cut Tape CHF 1.22 CHF 0.885 CHF 0.802 CHF 0.711 Reel CHF 0.595 View CHF 0.668 CHF 0.642 CHF 0.636 CHF 0.582 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	TCA9554A	SMD/SMT	SOIC-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander TCA9554ADBQR Texas Instruments 1: CHF 1.29 3’890In Stock	Mfr. Part No. TCA9554ADBQR Mouser Part No 595-TCA9554ADBQR	Texas Instruments	Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	3’890In Stock	Cut Tape CHF 1.29 CHF 0.945 CHF 0.861 CHF 0.76 Reel CHF 0.653 View CHF 0.715 CHF 0.687 CHF 0.681 CHF 0.624 MouseReel Available	Min.: 1 Mult.: 1 : 2’500	TCA9554A	SMD/SMT	SSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan TCA9554DBR Texas Instruments 1: CHF 1.53 2’019In Stock	Mfr. Part No. TCA9554DBR Mouser Part No 595-TCA9554DBR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	2’019In Stock	Cut Tape CHF 1.53 CHF 1.12 CHF 1.02 CHF 0.91 Reel CHF 0.79 View CHF 0.861 CHF 0.829 CHF 0.821 CHF 0.753 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	TCA9554	SMD/SMT	SSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Remote 8-B I2C & SM Bus I/O Expander TCA9554PWR Texas Instruments 1: CHF 1.40 13’593In Stock	Mfr. Part No. TCA9554PWR Mouser Part No 595-TCA9554PWR	Texas Instruments	Interface - I/O Expanders Remote 8-B I2C & SM Bus I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	13’593In Stock	Cut Tape CHF 1.40 CHF 1.02 CHF 0.926 CHF 0.821 Reel CHF 0.688 View CHF 0.774 CHF 0.744 CHF 0.735 CHF 0.673 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	TCA9554	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander TCA9554DBQR Texas Instruments 1: CHF 1.58 1’370In Stock 2’500Expected 1/11/2027	Mfr. Part No. TCA9554DBQR Mouser Part No 595-TCA9554DBQR	Texas Instruments	Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	1’370In Stock 2’500Expected 1/11/2027	Cut Tape CHF 1.58 CHF 1.17 CHF 1.07 CHF 0.945 Reel CHF 0.801 View CHF 0.894 CHF 0.861 CHF 0.784 MouseReel Available	Min.: 1 Mult.: 1 : 2’500	TCA9554	SMD/SMT	SSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan TCA9554ADBR Texas Instruments 1: CHF 1.22 1’456In Stock 2’000Expected 3/29/2027	Mfr. Part No. TCA9554ADBR Mouser Part No 595-TCA9554ADBR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	1’456In Stock 2’000Expected 3/29/2027	Cut Tape CHF 1.22 CHF 0.885 CHF 0.802 CHF 0.711 Reel CHF 0.595 View CHF 0.669 CHF 0.643 CHF 0.622 CHF 0.582 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	TCA9554A	SMD/SMT	SSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander TCA9554APWR Texas Instruments 1: CHF 1.22 1’788In Stock 10’000Expected 4/19/2027	Mfr. Part No. TCA9554APWR Mouser Part No 595-TCA9554APWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	1’788In Stock 10’000Expected 4/19/2027	Cut Tape CHF 1.22 CHF 0.885 CHF 0.802 CHF 0.711 Reel CHF 0.595 View CHF 0.669 CHF 0.643 CHF 0.636 CHF 0.582 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	TCA9554A	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWR TCA9554DWT Texas Instruments 1: CHF 2.03 36In Stock 500Expected 4/5/2027	Mfr. Part No. TCA9554DWT Mouser Part No 595-TCA9554DWT	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWR Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	36In Stock 500Expected 4/5/2027	Cut Tape CHF 2.03 CHF 1.51 CHF 1.37 CHF 1.23 Reel CHF 1.16 View CHF 1.12 CHF 1.07 CHF 1.02 MouseReel Available	Min.: 1 Mult.: 1 : 250	TCA9554	SMD/SMT	SOIC-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWT TCA9554DWR Texas Instruments 1: CHF 1.42 5’748On Order	Mfr. Part No. TCA9554DWR Mouser Part No 595-TCA9554DWR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWT Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	5’748On Order	Cut Tape CHF 1.42 CHF 1.05 CHF 0.945 CHF 0.845 View Reel CHF 0.697 CHF 0.791 CHF 0.762 CHF 0.756 CHF 0.697 MouseReel Available	Min.: 1 Mult.: 1 : 2’000	TCA9554	SMD/SMT	SOIC-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554ADWR TCA9554ADWT Texas Instruments 1: CHF 1.29 Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. TCA9554ADWT Mouser Part No 595-TCA9554ADWT	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554ADWR Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape CHF 1.29 CHF 1.25 CHF 1.20 CHF 1.12 Reel CHF 0.945 View CHF 0.934 CHF 0.917 CHF 0.91 CHF 0.894 MouseReel Available	Min.: 1 Mult.: 1 : 250	TCA9554A	SMD/SMT	SOIC-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel

TCA9554/A Remote 8-bit I2C & SMBus I/O Expander

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